Updated on 2024/12/16

Information

 

写真a

 
ADACHI TATSURO
 
Organization
Faculty of Social and Cultural Studies Assistant Professor
Advanced Asian Archaeology Research Center(QA3RC) (Concurrent)
School of Interdisciplinary Science and Innovation Department of Interdisciplinary Science and Innovation(Concurrent)
Graduate School of Integrated Sciences for Global Society Department of Integrated Sciences for Global Society(Concurrent)
Title
Assistant Professor
Contact information
メールアドレス
Tel
0928025661
Profile
My current research focuses on; (1) geology, petrology and geochronology of Antarctica and Central Asia (e.g. Mongolia and Russia) for understanding the crustal processes during continental growth.(2) characterization of archaeological material based on instrumental analyses such as electron probe microanalyzer and laser ablation inductively coupled plasma mass spectrometer.
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Degree

  • PhD

Research Interests・Research Keywords

  • Research theme: Establishments of Platinum Group Element and isotope analyses for serpentinite

    Keyword: serpentinite, PGE, Re-Os isotope

    Research period: 2015.4

  • Research theme: Establishment of trace element and isotope analyses for metal tools

    Keyword: metal tools, iron isotope, PGE

    Research period: 2014.4

  • Research theme: Collision tectonics of the central Asia orogenic belt

    Keyword: central Asia, collision zone, metamorphic petrology, geochronology, geology

    Research period: 2010.4

  • Research theme: Identification of the origin of buried cultural property on the basis of high-precision isotopic and elemental analyses

    Keyword: buried cultural property, high-precision instrumental analyses

    Research period: 2010.4

  • Research theme: Geological evolution of the Dronning Maud Land, East Antarctica.

    Keyword: Dronning Maud Land, Gondwana, metamorphic petrology, geochronology, geology

    Research period: 2006.4

Papers

  • Chlorine-rich potassic-ferro-pargasite with Cl-poor cummingtonite in mafic granulite from Austhovde, Lützow-Holm Complex, East Antarctica Reviewed International journal

    Yoshikuni HIROI, Tomokazu HOKADA, Tatsuro ADACHI, Atsushi KAMEI, Kazuyuki SHIRAISHI, Yoichi MOTOYOSHI

    Journal of Mineralogical and Petrological Sciences   119 ( ANTARCTICA )   n/a   2024.1   ISSN:13456296 eISSN:13493825

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    <p>Blue-green potassic-ferro-chloro-pargasite containing up to 0.3 wt% BaO and 4.6 wt% Cl occurs together with Cl-poor cummingtonite in a mafic granulite composed mainly of olive-brown potassic-ferro-pargasite with subordinate orthopyroxene, Ba- and Cl-bearing biotite, calcic plagioclase, quartz, ilmenite, zircon, and Cl-rich fluorapatite. The mafic granulite is characterized by high bulk rock contents of large-ion lithophile elements such as K, Ba, Pb, and Rb. Mineral assemblages, compositions and textures suggest four stages of recrystallization to form and modify the potassic-ferro-pargasite. Stage 1 is the main granulite-facies metamorphism, whereas stages 2-4 correspond to local phenomena most probably caused by fluid infiltration along a fracture during cooling. Stage 2 includes biotite formation with concomitant compositional change of orthopyroxene and potassic-ferro-pargasite to more Fe-rich. Fluorapatite partially changed composition from Cl-rich to Cl-poor. Stage 3 was a more localized event including (1) increase of K, Cl, Al, and Fe and decrease of Si, Ti, and Mg in the potassic-ferro-pargasite, accompanied by the color change from olive-brown to blue-green, and (2) formation of Cl-poor cummingtonite and sodic plagioclase by replacement of preexisting potassic-ferro-pargasite. Stage 4 was a more localized phenomenon within blue-green potassic-ferro-pargasite. It may be expressed as a volatile-conserving reaction such as Cl-bearing potassic-ferro-pargasite → potassic-ferro-chloro-pargasite + Cl-poor cummingtonite. The mafic granulite appears not to have undergone partial melting even at stage 1 most probably because of the high Cl content of the dominant potassic-ferro-pargasite.</p>

    DOI: 10.2465/jmps.230329

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  • Metamorphic rocks with different pressure-temperature-time paths bounded by a ductile shear zone at Oyayubi ridge, Brattnipene, Sør Rondane Mountains, East Antarctica Reviewed

    Tatsuro Adachi, Tetsuo Kawakami, Fumiko Higashino, Masaoki Uno

    Journal of Mineralogical and Petrological Sciences   118 ( ANTARCTICA )   n/a   2023.8   ISSN:13456296 eISSN:13493825

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    <p>The Sør Rondane Mountains, East Antarctica have been thought to be situated in the collision zone between East and West Gondwana during the final stage of amalgamation of the Gondwana supercontinent. They are, therefore, recognized as a key region for understanding the geological phenomena during the collisions and for testing the proposed tectonic models. We identified metamorphic rocks with different pressure-temperature-time paths that are bounded by a ductile shear zone at Oyayubi ridge, Brattnipene, Sør Rondane Mountains. Based on field and microscopic observations, chemical analyses of minerals, and zircon U-Pb dating, the sillimanite-garnet-biotite gneisses (i.e., pelitic gneisses) from higher structural level show a peak metamorphism at ∼ 590 Ma that took place under conditions of ∼ 830-840 °C and 0.8-0.9 GPa, and these high-temperature conditions lasted until ∼ 550 Ma. These rocks underwent isothermal decompression and then retrograde hydration under lower pressure-temperature conditions than 530 °C and 0.4 GPa at ∼ 530 Ma. In contrast, the orthogneisses that consist of hornblende-biotite gneiss and garnet-clinopyroxene gneiss from lower structural levels did not undergo metamorphism at ∼ 600 Ma but underwent metamorphism at ∼ 570 Ma and reached peak conditions of 700-760 °C and 0.6-0.9 GPa at ∼ 560-550 Ma. These observations suggest thrusting of the pelitic gneiss over the orthogneiss at ∼ 570-550 Ma, causing a prograde metamorphism of the orthogneisses and a decompression of the pelitic gneisses as well as uplift and subsequent rapid denudation. The results indicate two stages of collision in the Sør Rondane Mountains and that the ductile shear zone bounding the pelitic gneiss and orthogneiss units may have been part of the continental plate collision boundary at ∼ 570-550 Ma.</p>

    DOI: 10.2465/jmps.230220

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  • Nanogranitoid inclusions with grandidierite in mafic granulite from Austhovde, Lützow-Holm Complex, East Antarctica Reviewed International journal

    Yoshikuni HIROI, Tomokazu HOKADA, Tatsuro ADACHI, Kazuyuki SHIRAISHI, Yoichi MOTOYOSHI, Edward S. GREW

    Journal of Mineralogical and Petrological Sciences   118 ( ANTARCTICA )   n/a   2023.6   ISSN:13456296 eISSN:13493825

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    <p>Grandidierite, (Mg,Fe)Al<sub>3</sub>O<sub>2</sub>(BO<sub>3</sub>)SiO<sub>4</sub>, was found in a garnet-clinopyroxene-ilmenite-rich mafic granulite from Austhovde in the Late Neoproterozoic to Early Cambrian Lützow-Holm Complex (LHC), East Antarctica, the first reported occurrence of this borosilicate in a mafic granulite. It occurs in one of the many nanogranitoid inclusions (NIs) in garnet. Quartz, sodic plagioclase, myrmekite, K-feldspar, epidote and biotite are also found only as inclusions in garnet. Garnet porphyroblasts show marked compositional zoning: Ca increases and Mg decreases from the core to rim with little change in Fe and Mn contents except for the outermost rim. Anorthite content of inclusion plagioclase increases from core to rim of host garnet in parallel with increase in garnet Ca towards the rim. This together with the distinctly different mineral assemblages within and exterior to garnet porphyroblasts suggests that partial melting took place and produced melts were extracted leaving a mafic and calcic restite. Partial melting also occurred locally in garnet porphyroblasts consuming different hydrous mineral inclusions to produce various NIs ranging from K-feldspar-rich to K-feldspar-free. Subsequent decompression at high temperatures resulted in breakdown of garnet to orthopyroxene + calcic plagioclase with further consumption of quartz, such that none remained in the matrix of the granulite. Grandidierite may have formed by a reaction between a trapped boron-bearing aluminous granitic melt and host garnet upon cooling.</p>

    DOI: 10.2465/jmps.221209

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  • Multiple post-peak metamorphic fluid infiltrations in southern Perlebandet, Sør Rondane Mountains, East Antarctica Reviewed

    Fumiko Higashino, Tetsuo Kawakami, Tatsuro Adachi, Masaoki Uno

    Journal of Mineralogical and Petrological Sciences   118 ( ANTARCTICA )   n/a   2023.4   ISSN:13456296 eISSN:13493825

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    Multiple post-peak fluid infiltrations in southern Perlebandet, Sør Rondane Mountains, East Antarctica.

    DOI: 10.2465/jmps.230131a

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  • Formation of corundum in direct contact with quartz and biotite in clockwise <i>P–T</i> trajectory from the Sør Rondane Mountains, East Antarctica Reviewed International journal

    Tomokazu HOKADA, Tatsuro ADACHI, Yasuhito OSANAI, Nobuhiko NAKANO, Sotaro BABA, Tsuyoshi TOYOSHIMA

    Journal of Mineralogical and Petrological Sciences   117 ( 1 )   n/a - n/a   2022.7   ISSN:13456296 eISSN:13493825

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    <p>We have found corundum in direct contact with quartz and biotite and as inclusions in garnet in the pelitic gneisses of northern Austkampane in the Northeastern (NE) Terrane of the Sør Rondane Mountains (SRM), East Antarctica. Our samples, which include corundum–bearing gneisses, show petrographic features such as staurolite inclusions in garnet, compositional zoning of orthoamphibole with Al decreasing toward the rims, and late–stage cordierite formation, and these features are characteristic of a clockwise <i>P–T</i> trajectory. The observations are consistent with the proposed regional clockwise <i>P–T</i> evolution of the NE Terrane in the SRM. The corundum and other inclusions observed in the garnet porphyroblasts are interpreted to have formed owing to either staurolite breakdown or metastable crystallization relative to kyanite prior to the peak metamorphism. The close association of biotite and quartz surrounding corundum inclusions suggests fluid– or melt–related processes. These petrographic features imply that the corundum and quartz (rarely observed in high–grade metamorphic rocks) formed as a result of metastable crystallization during the prograde stage of the clockwise <i>P–T</i> evolution of a continental collision zone.</p>

    DOI: 10.2465/jmps.220317

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  • Petrology and zircon U–Pb geochronology of pelitic gneisses and granitoids from the Dai Loc Complex in the Truong Son Belt, Vietnam: Implication for the Silurian magmatic-metamorphic event

    Vuong Bui Thi Sinh, Yasuhito Osanai, Nobuhiko Nakano, Ippei Kitano, Tatsuro Adachi, Anh Tran Tuan, Binh Pham

    Journal of Asian Earth Sciences   226   105070 - 105070   2022.4   ISSN:1367-9120 eISSN:1878-5786

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    The Dai Loc Complex, located in the southern Truong Son Belt, is separated from the northern Kontum Massif by the early Paleozoic Tam Ky–Phuoc Son suture zone. This study presents new zircon U–Pb ages and petrographic observations of the migmatitic pelitic gneisses and mylonitized granite intrusions from the Dai Loc Complex in order to constrain the Early Paleozoic thermal history of the eastern Indochina Block. The identification of metamorphic zircon with sillimanite inclusions, euhedral cordierite, and garnet in the migmatitic pelitic gneisses indicates high temperature metamorphic conditions at ca. 430–440 Ma. The metamorphism was followed by an isobaric cooling stage defined by the replacing of cordierite by kyanite–staurolite–quartz symplectite. The Dai Loc granite likely intruded the metapelites at ca. 430 Ma and was subsequently mylonitized. The thermal event in the Dai Loc Complex may be correlated with Ordovician–Silurian low pressure/high temperature metamorphism caused by subduction related arc magmatism in the Kannack and Ngoc Linh Complexes of the Kontum Massif. However, the frequency distribution of detrital zircon ages suggests the metasedimentary rocks from Dai Loc Complex have a unique provenance that was distinct from those of the neighboring A Vuong Formation and South China Block.

    DOI: 10.1016/j.jseaes.2021.105070

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  • Geochronology and geochemistry of granitoids from the Mongolian Altai

    Dolzodmaa BOLDBAATAR, Yasuhito OSANAI, Nobuhiko NAKANO, Tatsuro ADACHI, Jargalan SEREENEN, Ippei KITANO, Kundyz SYERYEKKHAAN

    Journal of Mineralogical and Petrological Sciences   116 ( 6 )   293 - 308   2022.3

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    DOI: 10.2465/jmps.210830

  • Petrology and geochronology of andalusite- and sillimanite-bearing kyanite metapelites from the Gobi Altai Mountains: Evidence for prolonged convergent tectonics in the Central Asian Orogenic Belt Reviewed

    Nobuhiko Nakano, Yasuhito Osanai, Sereenen Jargalan, Tatsuro Adachi, Boldbaatar Dolzodmaa, Syeryekkhaan Kundyz, Masaaki Owada, M. Satish-Kumar

    Lithos   400-401   2021.11

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    To further constrain the tectonic evolution of the convergent margin of the West Mongolian segment in the Paleo–Asian Ocean, we have investigated coarse-grained kyanite metapelites associated with quartz veins in the Gobi Altai Mountains, Mongolia, where the metamorphic belt is in a thrust contact with a Paleozoic accretionary complex. The metapelites contain coarse-grained granoblastic kyanite grains that are surrounded by sillimanite (Sil-II) with moat-like andalusite (And-II). The garnet grains in the garnet-bearing kyanite metapelites contain inclusions of andalusite (And-I) in their cores and sillimanite (–Sil-I) in their mantles. Detailed textural characterization of the aluminosilicate phases indicates five distinct generations in the sequence andalusite (And-I), sillimanite (–Sil-I), kyanite (Ky), sillimanite (Sil-II), and andalusite (And-II). Thermobarometric calculations and thermodynamic modeling suggest a hairpin-shaped P–T evolution with prograde conditions starting from ~530 °C at 3.5 kbar, reaching a peak of 600 °C at 6 kbar, and then a retrogression to ~550 °C at 4 kbar. U-Pb zircon and U–Th–Pb monazite ages indicate that the multistage aluminosilicate formation has occurred during c. 260–245 Ma. The detrital zircon age distribution is essentially similar to those in the accretionary sedimentary rocks from the entire Altai Range (a sharp peak at 550–490 Ma and a broad peak at 900–700 Ma), but is characterized by more abundant Proterozoic zircon grains and an older maximum deposition age (Early Ordovician) compared with Devonian pelitic gneisses in the Mongolian Altai. These petrological and geochronological results indicate the following development of the orogen: (1) Subduction of an oceanic plate beneath a microcontinental block as early as 550 Ma, evidenced by the youngest peak of detrital zircon ages. (2) Development of the accretionary wedge and volcanic front due to maturation of the arc until c. 360 Ma. The development of the volcanic front due to the magmatism has provided abundant Paleozoic detritus to the accretionary wedge and has stemmed supply of Proterozoic detritus from the inland at the same time. (3) Burial of the youngest accretionary wedge at c. 360–350 Ma, which is not observed in the current samples. Ridge subduction has also been suggested to have occurred in this period. (4) Arc magmatism in the upper (older) part of the accretionary wedge during the late Permian that resulted in prograde high-T and low-P metamorphism (formation of And-I). (5) Burial of the heated accretionary wedge to a depth of ~20 km due to subsequent collision (formation of Sil-I and Ky) at c. 260 Ma. (6) Rapid exhumation of the buried accretionary wedge to a shallow depth by thrusting (formation of Sil-II and And-II) at c. 245 Ma. In summary, the metapelites in the Altai Range clearly preserve the evolution of both the accretion and collision events as well as their transformation processes, which are likely to be a good natural example of the Wilson cycle for a period of ~300 Myr.

    DOI: 10.1016/j.lithos.2021.106362

  • Archaeological significance and chemical characterization of the obsidian source in Kirigamine, central Japan: Methodology for provenance analysis of obsidian artefacts using XRF and LA–ICP–MS Reviewed

    Yoshimitsu Suda, Tatsuro Adachi, Shimada Kazutaka, Yasuhito Osanai

    Journal of Archaeological Science   129   105377 - 105377   2021.5

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    DOI: 10.1016/j.jas.2021.105377

  • LA-ICP-MS zircon U-Pb ages of the Oshima metamorphic complex from Yawatahama-Oshima island and its geotectonic correlation

    Yasuhito Osanai, Ippei Kitano, Nobuhiko Nakano, Tatsuro Adachi, Kazuhiro Yonemura, Aya Yoshimoto, Yukari Miyashita, Satoshi Komemushi, Masayuki Komatsu

    The Journal of the Geological Society of Japan   127 ( 1 )   1 - 24   2021.1

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    DOI: 10.5575/geosoc.2020.0044

  • Removal of lead and other toxic metals in heavily contaminated soil using biodegradable chelators: GLDA, citric acid and ascorbic acid

    Nguyen Van Thinh, Yasuhito Osanai, Tatsuro Adachi, Bui Thi Sinh Vuong, Ippei Kitano, Nguyen Thuy Chung, Phong K. Thai

    Chemosphere   263   127912 - 127912   2021.1

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    DOI: 10.1016/j.chemosphere.2020.127912

  • Timing of magmatism and ultrahigh- to high-grade metamorphism in the Kannak Complex, Kon Tum Massif, Vietnam: Magmatic activity and its tectonic implications Reviewed

    Masaaki Owada, Yasuhito Osanai, Nobuhiko Nakano, Ippei Kitano, Tatsuro Adachi, Pham Binh, Tran Van Tri

    Journal of Asian Earth Sciences   200   104077 - 104077   2020.9

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    DOI: 10.1016/j.jseaes.2019.104077

  • Timing of high-grade metamorphism in the Kontum Massif, Vietnam: Constraints from zircon–monazite multi-geochronology and trace elements geochemistry of zircon–monazite–garnet Reviewed

    Vuong Thi Sinh Bui, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Ippei Kitano, Masaaki Owada

    Journal of Asian Earth Sciences   187   104084 - 104084   2020.1

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    DOI: 10.1016/j.jseaes.2019.104084

  • Zoned quartz phenocrysts in supercooled melt inclusions in granulites from continental collision orogens Reviewed

    Yoshikuni Hiroi, Tomokazu Hokada, Masahiro Kayama, Akira Miyake, Tatsuro Adachi, Bernard Prame, Keerthi Perera, Madhusoodhan Satish‐Kumar, Yasuhito Osanai, Yoichi Motoyoshi, David J. Ellis, Kazuyuki Shiraishi

    Island Arc   29 ( 1 )   2020.1

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    DOI: 10.1111/iar.12374

  • Metamorphic P-T conditions and variation of REE between two garnet generations from granulites in the Sør-Rondane mountains, East Antarctica Reviewed

    Sotaro Baba, Yasuhito Osanai, Tatsuro Adachi, Nobuhiko Nakano, Tomokazu Hokada, Tsuyoshi Toyoshima

    Mineralogy and Petrology   123 ( 6 )   821 - 845   2019.6

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    Metamorphic P-T conditions and variation of REE between two garnet generations from granulites in the Sør-Rondane mountains, East Antarctica

    DOI: 10.1007/s00710-019-00680-0

  • Felsite-nanogranite inclusions and three Al2Si5 polimorphs in the same garnet in ultrahigh-temperature granulites from Rundvagshetta, Lutzow-Holm Complex, East Antarctica. Reviewed International journal

    Yoshikuni Hiroi, Tomokazu Hokada, Mutsumi Kato, Ayahiko Yanagi, Tatsuro Adachi, Yasuhito Osanai, Yoichi Motoyoshi, Kazuyuki Shiraishi

    114   60   2019.3

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  • Geochronology and REE geochemistry of zircon and garnet in pelitic gneisses from the Higo metamorphic terrane, Kyushu, Japan: Constraints on the timing of high–temperature metamorphism Reviewed International journal

    Vuong BUI THI SINH, Yasuhito OSANAI, Nobuhiko NAKANO, Tatsuro ADACHI, Ippei KITANO

    Journal of Mineralogical and Petrological Sciences   114 ( 2 )   47 - 59   2019.3

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    DOI: 10.2465/jmps.181115

  • Gem-Quality Zircon Megacrysts from Placer Deposits in the Central Highlands, Vietnam—Potential Source and Links to Cenozoic Alkali Basalts Reviewed International journal

    Vuong Bui Thi Sinh, Yasuhito Osanai, Christoph Lenz, Nobuhiko Nakano, Tatsuro Adachi, Elena Belousova, Ippei Kitano

    Minerals   9 ( 2 )   89   2019.3

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  • Chemical speciation and bioavailability concentration of arsenic and heavy metals in sediment and soil cores in estuarine ecosystem, Vietnam Reviewed

    Nguyen Van Thinh, Yasuhito Osanai, Tatsuro Adachi, Phong K. Thai, Nobuhiko Nakano, Akinori Ozaki, Yoshihiro Kuwahara, Ryosuke Kato, Masato Makio, Kiyoshi Kurosawa

    Microchemical Journal   139   268 - 277   2018.6

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    The first investigation of arsenic (As) contamination in soil cores in the biggest estuarine ecosystem in northern Vietnam was conducted using FE-EPMA, ICP-MS and XRD techniques. Concentrations of arsenic and five heavy metals were measured and mineralogical characteristic of soils and sediments in different land uses were analyzed. Most of the soils contained high proportions of As and heavy metals in the potential mobility fractions and silicate minerals. High concentrations of As and heavy metals were observed in river sediments and top-layers of mangrove forest soil cores. Qualitative analyses using WDS technique on FE-EPMA found As on the iron (hydro)oxides and framboidal pyrite surfaces in the samples. The principal component analysis indicated the enrichment of As and heavy metals in the upper soil layers, suggesting that intensive human activities in upstream of the Red river in recent decades could be the cause of elevated levels of these toxic elements in the estuarine ecosystem.

    DOI: 10.1016/j.microc.2018.03.005

  • Detrital zircon and igneous protolith ages of high-grade metamorphic rocks in the Highland and Wanni Complexes, Sri Lanka: Their geochronological correlation with southern India and East Antarctica Reviewed

    Ippei Kitano, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Ian C.W. Fitzsimons

    Journal of Asian Earth Sciences   156   122 - 144   2018.5

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    The high-grade metamorphic rocks of Sri Lanka place valuable constraints on the assembly of central parts of the Gondwana supercontinent. They are subdivided into the Wanni Complex (WC), Highland Complex (HC) and Vijayan Complex (VC), but their correlation with neighbouring Gondwana terranes is hindered by a poor understanding of the contact between the HC and WC. Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) U–Pb dating of remnant zircon cores from 45 high-grade metamorphic rocks in Sri Lanka reveals two domains with different age characteristics that correlate with the HC and WC and which help constrain the location of the boundary between them. The HC is dominated by detrital zircon ages of ca. 3500–1500 Ma from garnet–biotite gneiss, garnet–cordierite–biotite gneiss, some samples of garnet–orthopyroxene–biotite gneiss and siliceous gneiss (interpreted as paragneisses) and igneous protolith ages of ca. 2000–1800 Ma from garnet–hornblende–biotite gneiss, other samples of garnet–orthopyroxene–biotite gneiss, garnet–two-pyroxene granulite, two-pyroxene granulite and charnockite (interpreted as orthogneisses). In contrast, the WC is dominated by detrital zircon ages of ca. 1100–700 Ma from paragneisses and igneous protolith ages of ca. 1100–800 Ma from orthogneisses. This clearly suggests the HC and WC have different origins, but some of our results and previous data indicate their spatial distribution does not correspond exactly to the unit boundary proposed in earlier studies using Nd model ages. Detrital zircon and igneous protolith ages in the HC suggest that sedimentary protoliths were eroded from local 2000–1800 Ma igneous rocks and an older Paleoproterozoic to Archean craton. In contrast, the WC sedimentary protoliths were mainly eroded from local late Mesoproterozoic to Neoproterozoic igneous rocks with very minor components from an older 2500–1500 Ma craton, and in the case of the WC precursor sediments there was possibly additional detritus derived from early to middle Neoproterozoic metamorphic rocks. The relic zircon core ages in the HC are comparable with those of the Trivandrum Block and Nagercoil Block of southern India. In contrast, those ages in the WC match the Achankovil Shear Zone and Southern Madurai Block of southern India. These comparisons are also supported by Th/U ratios of detrital zircon cores from paragneisses (Th/U ratios of &gt
    0.10 for the former and not only &gt
    0.10 but also ≤0.10 for the latter). Comparisons with the Lützow-Holm Complex of East Antarctica indicate that the geochronological characteristics of the HC and WC broadly match those of the Skallen Group, and the Ongul and Okuiwa Groups, respectively.

    DOI: 10.1016/j.jseaes.2018.01.017

  • Oxidation states of Fe in constituent minerals of a spinel Lherzolite xenolith from the Tariat depression, Mongolia: The significance of Fe3+ in olivine Reviewed

    Terumi Ejima, Yasuhito Osanai, Masahide Akasaka, Tatsuro Adachi, Nobuhiko Nakano, Yoshiaki Kon, Hiroaki Ohfuji, Jargalan Sereenen

    Minerals   8 ( 5 )   2018.5

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    The oxidation states of Fe within olivine, orthopyroxene, clinopyroxene, and spinel in a spinel lherzolite xenolith from the Tariat Depression, Mongolia were investigated using57Fe Mössbauer spectroscopy to evaluate the redox condition of the upper mantle from which the Tariat spinel lherzolite xenolith was derived. The purity of separated minerals for the Mössbauer spectroscopic analysis was examined using X-ray powder diffraction, Raman spectroscopy, and transmission electron microscopy. Average Fo and Fe contents of olivine at the core part of the xenolith are 89.9(4) mol % and 0.195(3) atoms per formula unit, respectively. The Fe3+/ΣFe values of the olivine, orthopyroxene, clinopyroxene, and spinel, determined by Mössbauer spectroscopic analysis, are 0.027(2), 0.15(1), 0.26(3), and 0.34(5), respectively. TheMössbauer spectrum of olivine consists of two doublets assigned to Fe2+ at the octahedral sites and one doublet, with I.S. of 0.40(2) mm/s and Q.S. of 0.69(3) mm/s assigned to Fe3+ at the octahedral site. Since the Tariat spinel lherzolite xenolith in this study shows no evidence of metasomatism or thermal alteration, the existence of a small amount of Fe3+ in olivine and the fairly high Fe3+ contents of clinopyroxene, orthopyroxene, and spinel imply that the upper mantle under the Tariat area was in a rather oxidized condition.

    DOI: 10.3390/min8050204

  • 島弧-大陸地殻深部現象の研究進展 : 超高温変成作用の精密解析 (125周年記念特集 日本の変成岩研究の最近の進展と将来展望(その2)) Reviewed

    小山内 康人, 中野 伸彦, 足立 達朗

    地質学雑誌   123 ( 10 )   879 - 906   2017.10

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    Recent progress in lower crustal process : precise analyses on ultrahigh-temperature metamorphism

    DOI: 10.5575/geosoc.2017.0059

  • Excavations at Daram and Tevsh Sites: A Report on Joint Mongolian-Japanese Excavations in Outer Mongolia Reviewed

    Miyamoto Kazuo, Obata Hiroki, Adachi Tatsuro, Amgalantgus Tsend, Funahashi Kyoko, Gakuhari Takashi, Ito Shigeru, Kobayashi Koichi, Matsuzaki Hiroyuki, Nakahashi Takahiro, o, h

    2016.6

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    Excavations at Daram and Tevsh Sites: A Report on Joint Mongolian-Japanese Excavations in Outer Mongolia

  • 阿武隈山地南部,ジルコンU-Pb年代値に基づく日立変成岩類層序の再定義と日本海形成前の東北日本列島基盤の復元 Reviewed

    田切 美智雄, 堀江 憲路, 足立 達朗

    地質雑   122 ( 6 )   231 - 247   2016.6

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    Revised stratigraphy and zircon U-Pb age data of the Hitachi metamorphic formations in the southern Abukuma Mountains, and reconstruction of the basement of the Northeast Japan Arc before the opening of the Japan Sea
    We revised the stratigraphy of the Hitachi metamorphic district, based on supplementary U-Pb SHRIMP zircon ages and a review of the geochronological data available for this district. Early to late Cambrian formations and intrusives are grouped into the Cambrian Hitachi volcano-plutonic complex, which consists of the Akazawa Formation, the Tamadare Formation, meta-granites and meta-porphyry. Post-Silurian mica gneiss that occurs near the Tamadare Formation is newly defined as the Takizawa Formation, distinct from the Tamadare Formation. The Daioin and Ayukawa formations are early Carboniferous and early Permian in age, respectively. The contact between the Hitachi volcano-plutonic complex and the Daioin Formation is marked by a prolonged hiatus. There are no geochronological data available for the Omika Formation. Zircon U-Pb age data of the Nishidohira Formation indicate deposition during the Early Cretaceous. The Nishidohira Formation was intruded by 119 Ma granitoids and was metamorphosed during 118-96 Ma under conditions of the amphibolite facies, kyanite-sillimanite zone. Sedimentation, metamorphism and exhumation, and intrusion of granitic magma in the terrain of the Nishidohira Formation occurred over a short period of time during the Cretaceous. A similar rapid metamorphism and exhumation is also recorded in the Takanuki metamorphic rocks of the Abukuma Belt. We reconstructed the basement of the Northeast Japan Arc for the period before the opening of the Japan Sea, assuming that the Median Tectonic Line had a linear trend from the Southwest Japan Arc to the Northeast Japan Arc during the Paleogene. After the reconstruction, the Paleozoic Hitachi Formations and the Abukuma Belt move closer to the Jiamusi and Khanka blocks of Northeast China. This result indicates that the Cambrian Hitachi volcano-plutonic complex was originally marginal part of the North China Block.

    DOI: 10.5575/geosoc.2016.0012

  • UHT granulites of the Highland Complex, Sri Lanka I: Geological and petrological background Reviewed

    Yasuhito Osanai, Krishnan Sajeev, Nobuhiko Nakano, Ippei Kitano, Wilbert K. V. Kehelpannala, Ryosuke Kato, Tatsuro Adachi, Sanjeewa P. K. Malaviarachchi

    JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES   111 ( 3 )   145 - 156   2016.6

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    The ultrahigh-temperature (UHT) regional metamorphism of Sri Lanka has a significant role in understanding the tectonics and formation of the Gondwana supercontinent. Sri Lanka is specifically important because of its central position in Gondwana, located between southern India, Madagascar and eastern Antarctica. In particular, the Highland Complex has been the focus of several previous studies because of the prominence of metasedimentary rocks that experienced UHT metamorphism. The central Highland Complex of Sri Lanka consists of Spr-bearing Mg-Al rich granulites intercalated with other pelitic, mafic granulites and calc-silicates, which preserve several textural evidences for UHT metamorphism. The calculated peak metamorphic conditions for the Mg-Al rich granulite yielded a temperature range from 910 to 1005 degrees C at 1.0 GPa, and the pressure varies between 0.9 to 1.2 GPa. The estimated metamorphic P-T conditions and evolution path is in good agreement with previous studies and also to that of similar rock-types from southern Madagascar, southern India and East Antarctica.

    DOI: 10.2465/jmps.151227

  • UHT granulites of the Highland Complex, Sri Lanka II: Geochronological constraints and implications for Gondwana correlation Reviewed

    Yasuhito Osanai, Krishnan Sajeev, Nobuhiko Nakano, Ippei Kitano, Wilbert K. V. Kehelpannala, Ryosuke Kato, Tatsuro Adachi, Sanjeewa P. K. Malaviarachchi

    JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES   111 ( 3 )   157 - 169   2016.6

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    The regional ultrahigh-temperature (UHT) metamorphism of the Highland Complex, Sri Lanka is well established and has an important role in our understanding of the tectonic history of the Gondwana supercontinent. U-Pb zircon dating of sapphirine-bearing Mg-Al granulites yielded two major metamorphic age populations at approximately 620-590 and 563-525 Ma with no evidence of older zircon cores. Pelitic granulite samples with a Grt-Sil-Spl-Crd assemblage have similar metamorphic ages with concordant data clusters at similar to 602, 563, and 526 Ma and inherited zircon cores aged from 2040 to 1600 Ma. The pelitic granulites also underwent two stages of metamorphism (565-520 and 622-580 Ma). Some of these pelitic granulite samples have inherited zircon cores ranging from 3060 to 760 Ma. Zircons in mafic granulite samples have age ranges of 566-533 and 620578 Ma. A calc-silicate granulite sample also has similar age populations at 591, 541, and 524 Ma. Combining these new results with previously published ages from Sri Lanka and formerly adjacent continental fragments of Gondwana, we propose that the terranes in southern Madagascar (south of Ranotsara Shear Zone), Northern and Southern Madurai and the Trivandrum Blocks of southern India, the Highland Complex of Sri Lanka, and the Skallen Group in the Lutzow-Holm Complex of East Antarctica represent a unique metamorphic belt that regionally experienced the Ediacaran-Cambrian UHT event during the amalgamation of the Gondwana super-continent.

    DOI: 10.2465/jmps.151230

  • Prograde and retrograde evolution of eclogites from the Bantimala Complex in South Sulawesi, Indonesia Reviewed

    Nugroho Imam Setiawan, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Kazuhiro Yonemura, Aya Yoshimoto

    JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES   111 ( 3 )   211 - 225   2016.6

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    This contribution reports the metamorphic evolution of the high-pressure metamorphic rocks from the Bantimala Complex, South Sulawesi, Indonesia. Barroisite-bearing and barroisite-free eclogites were examined to assess their metamorphic evolutions, which have implications regarding the tectonic conditions in this region. The eclogites mainly consist of garnet, omphacite, phengite, rutile, and epidote, with or without barroisite. The variations in mineral assemblages are interpreted to depend upon local changes in the bulk chemical composition. The barroisite-bearing eclogites contain two types of euhedral garnet: coarse- (1-1.5 mm) and fine-grained (< 0.5 mm). Mineral inclusions in the coarse-grained garnet core and mantle show epidote + titanite and glaucophane + epidote assemblages, that stabilized at 0.9-1.5 GPa and 350-550 degrees C within epidote blueschist- facies conditions. Mineral chemistry and chemical-mapping analyses indicate that both fine-grained garnet and the rim of coarse-grained garnet formed at peak P-T conditions, which were estimated as 2.3-2.7 GPa at 615-680 degrees C based on the garnet-omphacite-phengite-quartz equilibrium. Peak P-T conditions for barroisite-free eclogite were similar (2.5-2.7 GPa at 650-690 degrees C) to those for barroisite-bearing eclogite. Actinolite rims overgrowing matrix sodic-calcic amphiboles attest to retrogression at P < 0.5 GPa and T < 350 degrees C in a clockwise P-T path. The very low geothermal gradient experienced during the prograde path (similar to 5 degrees C/km) likely suggests the subduction of an old and cold oceanic crust. The low geothermal gradient on the retrograde path suggests decompressional cooling during exhumation, possibly favored by a serpentinite-dominated matrix within a subduction channel environment.

    DOI: 10.2465/jmps.150907

  • Late Permian plume-related magmatism and tectonothermal events in the Kontum Massif, central Vietnam Reviewed

    Masaaki Owada, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Ippei Kitano, Tran Van Tri, Hiroo Kagami

    JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES   111 ( 3 )   181 - 195   2016.6

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    The Kontum Massif is situated in the southern part of Trans Vietnam Orogenic Belt (TVOB), central Vietnam, and contains various types of magmatic and metamorphic rocks, the latter including both ultrahigh-pressure and ultrahigh-temperature units. While geochronological data indicate the existence of two main tectonothermal events at 480-420 Ma and 270-240 Ma, the most intense metamorphic and magmatic activity occurred between the Late Permian and Early Triassic due to continental collision between the South China and Indochina cratons. In this study, U-Pb LA-ICP-MS geochronological analyses of zircon obtained from two samples of metagabbro and one sample of charnockite from the massif yielded a magmatic age range of 260-250 Ma for all three samples and an inherited age of similar to 1400 Ma for the charnockite. These magmatic ages overlap with those documented for peak metamorphism in the Kontum Massif. When combined with Nd isotopic data for granitic rocks and pelitic gneisses from the region, these data suggest that the massif may have been derived from reworked continental crust. Geochemical characteristics of metagabbros from the massif reveal that the parental basaltic magma can be correlated with the Song Da igneous suite situated in the northern part of the TVOB, and was assimilated by crustal materials. The Song Da igneous suite is a member of the Emeishan large igneous province and resulted from Late Permian mantle plume activity. We conclude that the plume-related magma intruded into the deeper part of Kontum Massif and induced ultrahigh-temperature metamorphism of the lower crust by acting as a heat source.

    DOI: 10.2465/jmps.151019b

  • Detrital zircon provenances for metamorphic rocks from southern Sør Rondane Mountains, East Antarctica: A new report of Archean to Mesoproterozoic zircons Reviewed

    Ippei Kitano, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi

    Journal of Mineralogical and Petrological Sciences   111 ( 2 )   118 - 128   2016.4

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    Detrital zircon provenances for metamorphic rocks from southern Sor Rondane Mountains, East Antarctica: A new report of Archean to Mesoproterozoic zircons
    The Sor Rondane Mountains in East Antarctica consist of the various metamorphic rocks and several plutonic rocks, which are related to formation of Gondwana supercontinent. In order to understand the detrital provenances, LA-ICP-MS zircon U-Pb dating were conducted from metamorphosed sedimentary rocks in southern Sor Rondane Mountains. Detrital cores with similar to 990-730 Ma ages were recognized from zircons in the pelitic gneisses and calc-silicate rocks from Menipa, Imingfjella, Mefjell and Arden, while the pelitic gneiss from Tvihogda exhibited the Archean to Mesoproterozoic ages of similar to 2630-1060 Ma. The Neoproterozoic zircon ages are recognized not only from metamorphosed sedimentary rocks but also from metamorphosed igneous rocks distributed in the central and southern parts of the mountains. However, the Archean to Mesoproterozoic zircon ages are rare in these areas. The results imply the detrital zircons with the Neoproterozoic ages were probably derived from neighbouring igneous rocks (present metamorphosed igneous rocks), while those with Archean to Mesoproterozoic ages have clearly different provenances because of the lack in the Neoproterozoic components. This study suggests the possibility that southern Sor Rondane Mountains can be considered to be juvenile late Mesoproterozoic to Neoproterozoic terrane partly mixed with the Archean to Mesoproterozoic components.

    DOI: 10.2465/jmps.151001

  • Metamorphic evolution of garnet-bearing epidote-barroisite schist from the Meratus complex in South Kalimantan, Indonesia Reviewed

    Nugroho Imam Setiawan, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Amril Asy'ari

    Indonesian Journal on Geoscience   2 ( 3 )   139 - 156   2015.12

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    This paper presents metamorphic evolution of metamorphic rocks from the Meratus Complex in South Kalimantan, Indonesia. Eight varieties of metamorphic rocks samples from this location, which are garnet-bearing epidote-barroisite schist, epidote-barroisite schist, glaucophane-quartz schist, garnet-muscovite schist, actinolite-talc schist, epidote schist, muscovite schist, and serpentinite, were investigated in detail its petrological and mineralogical characteristics by using polarization microscope and electron probe micro analyzer (EPMA). Furthermore, the pressure-temperature path of garnet-bearing epidote-barroisite schist was estimated by using mineral parageneses, reaction textures, and mineral chemistries to assess the metamorphic history. The primary stage of this rock might be represented by the assemblage of glaucophane + epidote + titanite ± paragonite. The assemblage yields 1.7 - 1.0 GPa in assumed temperature of 300 - 550 °C, which is interpreted as maximum pressure limit of prograde stage. The peak P-T condition estimated on the basis of the equilibrium of garnet rim, barroisite, phengite, epidote, and quartz, yields 547 - 690 °C and 1.1 - 1.5 GPa on the albite epidote amphibolite-facies that correspond to the depth of 38 - 50 km. The retrograde stage was presented by changing mineral compositions of amphiboles from the Si-rich barroisite to the actinolite, which lies near 0.5 GPa at 350 °C. It could be concluded that metamorphic rocks from the Meratus Complex experienced low-temperature and high-pressure conditions (blueschist-facies) prior to the peak metamorphism of the epidote amphibolite-facies. The subduction environments in Meratus Complex during Cretaceous should be responsible for this metamorphic condition.

    DOI: 10.17014/ijog.2.3.139-156

  • 臺灣鐵器時代蔦松文化的人群移動與社會組織研究-鍶同位素分析法之應用 Reviewed

    邱鴻霖, 田中 良之, 足立 達朗, 舟橋 京子, 小山内 康人, 中野 伸彦, 米元 史織

    國立臺灣博物館學刊   68   23 - 52   2015.12

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  • Multiple growth of garnet, sillimanite/kyanite and monazite during amphibolite facies metamorphism: implications for the P-T-t and tectonic evolution of the western Altai Range, Mongolia Reviewed

    N. Nakano, Y. Osanai, M. Owada, M. Satish-Kumar, T. Adachi, S. Jargalan, A. Yoshimoto, K. Syeryekhan, CH. Boldbaatar

    JOURNAL OF METAMORPHIC GEOLOGY   33 ( 9 )   937 - 958   2015.12

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    Four amphibolite facies pelitic gneisses from the western Mongolian Altai Range exhibit multistage aluminosilicate formation and various chemical-zoning patterns in garnet. Two of them contain kyanite in the matrix and sillimanite inclusions in garnet, and the others have kyanite inclusions in garnet with sillimanite or kyanite in the matrix. The Ca-zoning patterns of the garnet are different in each rock type. U-Th-Pb monazite geochronology revealed that all rock units experienced a c. 360Ma event, and three of them were also affected by a c. 260Ma event. The variations in the microstructures and garnet-zoning profiles are caused by the differences in the (i) whole-rock chemistry, (ii) pressure conditions during garnet growth at c. 360Ma and (iii) equilibrium temperatures at c.260Ma. The garnet with sillimanite inclusions records an increase in pressure at low-P (5.2-7.2kbar) and moderate temperature conditions (620-660 degrees C) at c. 360Ma. The garnet with kyanite inclusions in the other rock types was also formed during an increase in pressure but at higher pressure conditions (7.0-8.9kbar at 600-640 degrees C). The detrital zircon provenance of all the rock types is similar and is consistent with that from the sedimentary rocks in the Altai Range, suggesting that the provenance of all the rock types was a surrounding accretionary wedge. One possible scenario for the different thermal gradient is Devonian ridge subduction beneath the Altai Range, as proposed by several researchers. The subducting ridge could have supplied heat to the accretionary wedge and elevated the geotherm at c. 360Ma. The differences in the thermal gradients that resulted in varying prograde P-T paths might be due to variations in the thermal regimes in the upper plate that were generated by the subducting ridge. The c. 260Ma event is characterized by a relatively high-T/P gradient (25 degrees Ckm(-1)) and may be due to collision-related granitic activity and re-equilibrium at middle crustal depths, which caused the variations in the aluminosilicates in the matrix between the rock units.

    DOI: 10.1111/jmg.12154

  • 北上山地の前期白亜紀アダカイト質火成活動とテクトニクス Reviewed

    土谷 信高, 武田 朋代, 足立 達朗, 中野 伸彦, 小山内 康人, 足立 佳子

    岩石鉱物科学   44 ( 2 )   69 - 90   2015.3

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    Early Cretaceous adakitic magmatism and tectonics in the Kitakami Mountains, Japan
    Early Cretaceous igneous rocks in the Kitakami Mountains consist of volcanic rocks, dike rocks, and plutonic rocks, from older to younger. Plutonic rocks are composed mainly of adakitic granites in central part of zoned plutonic bodies surrounded by adakitic to non- adakitic granites in marginal part. These adakitic plutons is divided into E andWzones based on the ages and geochemistry. Zircon U-Pb ages were determined with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) for 22 samples from 13 rock bodies including the Early Cretaceous adakitic granites in the KitakamiMountains. Zircons from the adakitic granites of E zone give older ages (127-117 Ma) compared with those of W zone (119-113 Ma). Zircon ages of the calc-alkaline to shoshonitic rocks and dike rocks range from 128-124 Ma, which are similar to the oldest rocks of the E zone (127-125 Ma). Zircon ages become younger from the northern Hashikami pluton and marginal facies of the Tanohata pluton (127-125 Ma) to southern Takase granites (118-117 Ma), in the E zone adakitic granites. Petrochemical diŠerences between the E zone and W zone rocks indicate that the adakitic melt of E zone rocks are considered to be derived from vapor-absent melting condition, while those of W zone rocks are from higher pressure and vapor-present condition. Taking all these data into consideration, the Early Cretaceous magmatisms in Kitakami can be explained by the diŠerential subduction model of the Farallon-Izanagi plates or slab rollback model accompanied with asthenospheric upwelling.

    DOI: 10.2465/gkk.131228

  • Multiple collisions in the east african–antarctica orogen: Constraints from timing of metamorphism in the filchnerfjella and hochlinfjellet terranes in central dronning maud land Reviewed

    Sotaro Baba, Kenji Horie, Kenji Horie, Tomokazu Hokada, Tomokazu Hokada, Masaaki Owada, Tatsuro Adachi, Tatsuro Adachi, Kazuyuki Shiraishi, Kazuyuki Shiraishi

    Journal of Geology   123 ( 1 )   55 - 77   2015.1

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    Multiple Collisions in the East African-Antarctica Orogen: Constraints from Timing of Metamorphism in the Filchnerfjella and Hochlinfjellet Terranes in Central Dronning Maud Land
    Sensitive high-resolution ion microprobe (SHRIMP) U-Pb zircon age dating was applied to several types of cordierite-bearing gneisses and orthopyroxene-bearing gneiss from the basement rocks in central Dronning Maud Land, East Antarctica, to clarify the timing of tectonothermal events during the amalgamation of East and West Gondwana. The zircon ages of ca. 522-525 and 598-599 Ma were obtained in Filchnerfjella and Hochlinfjellet, respectively, and the cathodoluminescence images of analyzed zircons suggest that these were formed during high-temperature metamorphism. These two sets of ages are interpreted to represent periods that immediately followed the peak metamorphism. The dating results reveal an age gap of 80 Myr between the two areas, indicating different collisional events. In the cordierite-bearing samples in Filchnerfjella, zircon cores with oscillatory zoning have concordia ages that range from 1800 to 650 Ma. These are considered to represent the ages of detrital zircons derived over a long time from different source materials. In Hochlinfjellet, the inherited detrital zircons with oscillatory zoning have concordia ages of ca. 930, 780, and 730 Ma, indicating sedimentary protoliths derived from differently aged igneous source rocks, possibly formed in a subduction zone as an accretionary prism before the collision. According to previous age results, previously documented shear zones are now interpreted as representing a major tectonic boundary. The obtained age results imply that different allochthonous metamorphic terranes were assembled along the collisional zone of the East African-Antarctica Orogen during the period from 650 to 500 Ma.

    DOI: 10.1086/679468

  • Paleozoic Subduction-Accretion-Closure Histories in the West Mongolian Segment of the Paleo-Asian Ocean: Evidence from Pressure-Temperature-Time-Protolith Evolution of High-Mg and -Al Gneisses in the Altai Mountains Reviewed

    Nobuhiko Nakano, Yasuhito Osanai, M. Satish-Kumar, Tatsuro Adachi, Masaaki Owada, Sereenen Jargalan, Chimedtseie Boldbaatar, Aya Yoshimoto, Kundyz Syeryekhan

    JOURNAL OF GEOLOGY   122 ( 3 )   283 - 308   2014.5

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    High-Mg, high-Al metasedimentary gneisses from the Altai Mountains, Mongolia, belonging to a subduction-accretion complex within the Central Asian Orogenic Belt can be divided into five rock types on the basis of mineral assemblages. Most rock types have high MgO and Al2O3 content and low CaO, Na2O, Rb, and Sr content. All rock types experienced a similar medium-pressure metamorphism characterized by a "hairpin"-shaped counterclockwise pressure-temperature path. U-Pb zircon and U-Th-Pb monazite ages indicated metamorphism at ca. 356 Ma and 277 Ma and inherited ages of 510-379 Ma, suggesting possible provenance to granitoids comparable to those in the Altai Mountains, China. The zircons that newly nucleated at ca. 356 Ma are characterized by high concentrations of light rare earth elements without a Ce anomaly-features common in zircons from hydrothermally altered rocks and a reducing environment. Petrological and geochronological results in this study suggest the following tectonic evolution: (1) continuous subduction and accretion of paleo-Asian oceanic crust during the Early Paleozoic, resulting in periodic granitoid magmatism in the period 510-380 Ma and a continuous supply of granite-derived sediments providing detrital zircon and monazite grains to the accretionary prism; (2) ridge subduction during the Late Devonian-Early Carboniferous (ca. 356 Ma), resulting in hydrothermal metamorphism of the accretionary prism and interaction with seawater that produced rocks with unusual whole-rock chemistry; and (3) closure of the ocean leading to continental collision in the Early Permian (ca. 277 Ma), with part of the accretionary prism squeezed into lower crustal levels to form medium-pressure metamorphic rocks.

    DOI: 10.1086/675665

  • 九州・黒瀬川構造帯における古生代花崗岩類および関連火成岩類の LA-ICP-MS ジルコン U-Pb 年代 Reviewed

    小山内 康人, 吉本 紋, 中野 伸彦, 足立 達朗, 北野 一平, 米村 和紘, 佐々木 惇, 土谷 信高, 石塚 英男

    岩石鉱物科学   43 ( 3 )   71 - 99   2014.5

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    LA-ICP-MS zircon U-Pb geochronology of Paleozoic granitic rocks and related igneous rocks from the Kurosegawa tectonic belt in Kyushu, Southwest Japan
    &nbsp;&nbsp;The Yatsushiro area in Kyushu Island, southwest Japan, forms the western tip of the Kurosegawa tectonic belt. This area is underlain by a serpentinite melange with complicated tectonic block assemblage of granitic rocks, high-temperature (HT)-type metagabbro (Grt-Cpx granulite, Grt-amphibolite and Cpx-bearing amphibolite), and high-pressure (HP)-type metagabbro (Jd-Gln rock and Gln-bearing metagabbro). The granitic rocks and the gabbros are the protoliths of the HT-type metagabbro (HT-gabbro), and supposed to be derived from volcanic arc at an active continental margin based on their major, trace, and rare earth element (REE) chemistry, while geochemistry of the gabbro protoliths of the HP-type metagabbro (HP-gabbro) indicates mid oceanic ridge basalt (MORB)-like precursors. The laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) zircon U-Pb dating of the granitic rocks and the HT-gabbro gave the Ordovician magmatic ages (&sim; 450 Ma). On the other hand, the HP-gabbro showed the igneous age of the Late Cambrian (&sim; 490 Ma). Similar rock suites collected from the Kurosegawa tectonic belt in Shikoku and in the Kii-peninsula have the same chemical and age affinities according to their rock types. These results indicate the strong geological and tectonic similarities within the Kurosegawa tectonic belt. The similar assemblage is present in the South-Kitakami belt suggesting similarities in their origin.

    DOI: 10.2465/gkk.131126

  • 阿武隈山地東縁の石炭紀および白亜紀アダカイト質花崗岩類とその地質学的意義 Reviewed

    土谷 信高, 武田 朋代, 谷 健一郎, 足立 達朗, 中野 伸彦, 小山内 康人, 木村 純一

    地質雑   120 ( 2 )   37 - 51   2014.2

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    Zircon U–Pb age and its geological significance of late Carboniferous and Early Cretaceous adakitic granites from eastern margin of the Abukuma Mountains, Japan
    The &#039;Wariyama Sheared Granodiorite&#039; occurs along the east side of the Futaba Fault with the Wariyama uplift zone, Miyagi, Japan. Rocks from the &#039;Wariyama Sheared Granodiorite&#039; can be geochemically classified as typical adakite, and further subdivided into medium-grained and K2O- and Sr-poorer rocks, and coarse-grained and K2O- and Sr-richer rocks. Zircons from the former yield U–Pb ages of 308 ± 3 and 302 ± 4 Ma, whereas zircons from the latter have ages of 118 ± 2 and 117 ± 1 Ma. On the basis of these results, the &#039;Wariyama Sheared Granodiorite&#039; can be redefined. The late Carboniferous granite is renamed the Wariyama Granite as in the past, but we use the term &#039;granite&#039; in a broad sense as describing the rock type. The Early Cretaceous granite is newly defined as the Takase Granite. The Takase Granite crops out on the eastern side of the central region of the Wariyama Granite with faulted contact. The Takase Granite is divided into the SiO2-poor Takase Granite A and the SiO2-rich Takase Granite B. The U–Pb zircon age of 300 Ma obtained here corresponds to an interval of five major granitic events, and the timing of the onset of Permian granitic magmatism (280 Ma) may actually be ca. 300 Ma. Typical adakites are considered to be the product of slab melting, which occurred in response to unusual tectonic conditions, such as subduction of young lithosphere and/or an active ridge at ca. 300 Ma.

    DOI: 10.5575/geosoc.2014.0003

  • Supercooled melt inclusions in lower-crustal granulites as a consequence of rapid exhumation by channel flow Reviewed

    Yoshikuni Hiroi, Ayahiko Yanagi, Mutsumi Kato, Tomoyuki Kobayashi, Bernard Prame, Tomokazu Hokada, Madhusoodhan Satish-Kumar, Masahiro Ishikawa, Tatsuro Adachi, Yasuhito Osanai, Yoichi Motoyoshi, Kazuyuki Shiraishi

    GONDWANA RESEARCH   25 ( 1 )   226 - 234   2014.1

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    Here we report on the unexpected occurrence of felsic (granitic) inclusions with quench textures such as spherulite and dendrite (hereafter referred to as "felsite inclusions"), similar to some volcanic rocks, within garnet in presumably "slowly cooled" lower-crustal granulites of various geologic ages ranging from Early Proterozoic to Middle Paleozoic and wide global distribution (the Limpopo Belt, the Grenville Province, the Liltzow-Holm Complex of East Antarctica, the Highland Complex of Sri Lanka, and the southern Bohemian Massif). The well-preserved textures of felsite inclusions are indicative of melts formed by anatexis during high-pressure and high-temperature metamorphism, crystallization under far-from-equilibrium conditions (at >50 degrees C undercooling) and subsequent rapid cooling. The occurrence of felsite inclusions in granulites in restricted tectonostratigraphic zones in Sri Lanka, among other examples, may be the first geologic evidence for fast exhumation of lower-crustal rocks to andalusite-stable upper-crustal conditions by channel flow in a continental collision orogen. We hypothesize that granulites ascend episodically along discrete high-strain zones and cool as fast as some felsic magmas. This conclusion sheds new light on the debate regarding the deep crustal processes and necessitates changes to fundamental beliefs about exhumation rates based on rates of plate convergence (1-10 cm/year). (C) 2013 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.gr.2013.04.001

  • Contrasting metamorphic records and their implications for tectonic process in the central Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica Reviewed

    Tatsuro Adachi, Tomokazu Hokada, Tomokazu Hokada, Yasuhito Osanai, Nobuhiko Nakano, Sotaro Baba, Tsuyoshi Toyoshima

    Geological Society Special Publication   383 ( 1 )   113 - 133   2013.10

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    Contrasting metamorphic records and their implications for tectonic process in the central Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica
    Metamorphic rocks in the central part of Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica, are classified into three types based on petrological characteristics. (i) The Austkampane area preserves c. 800oC and 0.5-0.6 GPa peak metamorphic conditions followed by decompression and subsequent isobaric cooling and later hydration (A-type). (ii) The Brattnipene and eastern Menipa area preserve peak P-T conditions of c. 800oC and 0.7- 0.8 GPa with subsequent isobaric cooling and later hydration (B-type). (iii) The area including Lunckeryggen, southern Walnumfjella and western Menipa preserves an amphibolite-facies peak metamorphic condition with signatures of prograde metamorphism (L-type), which are typically unaffected by the retrograde hydration event. Peak granulite-facies metamorphism of A- and B-type rocks are contemporaneous at c. 640-600 Ma, but a difference in the P-T paths between these rocks can be explained by thrusting of the A-type rock unit onto the B-type rock unit. By contrast, the timing of the metamorphism of the L-type rocks is significantly younger at c. 550 Ma, possibly related to the intrusion of pegmatites and granitoids. These metamorphic records in the central part of the Sør Rondane Mountains can be a test ground for the regional tectonic processes proposed for the orogeny related to Gondwana formation. © The Geological Society of London 2013.

    DOI: 10.1144/SP383.4

  • Possible armalcolite pseudomorph-bearing garnet-sillimanite gneiss from Skallevikshalsen, Lützow-Holm Complex, East Antarctica: Implications for ultrahigh-temperature metamorphism Reviewed

    Toshisuke Kawasaki, Tatsuro Adachi, Nobuhiko Nakano, Yasuhito Osanai

    Geological Society Special Publication   383 ( 1 )   135 - 167   2013.10

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    Possible armalcolite pseudomorph-bearing garnet-sillimanite gneiss from Skallevikshalsen, Lützow-Holm Complex, East Antarctica: Implications for ultrahigh-temperature metamorphism
    A possible armalcolite pseudomorph has been identified in garnet-sillimanite gneiss from Skallevikshalsen, located c. 30 km NE of Rundvågshetta, in a terrane with the highest metamorphic grade in the Lützow-Holm Complex, East Antarctica. It occurs as an Fe-Mg-Ti compositional domain consisting of ilmenite, rutile and pseudorutile, partially mantled by rutile within ilmenite. The domain yields an average XMg of 0.171±0.036 exceeding by 3 wt% TiO2 from armalcolite stoichiometry, while the analysis closest to armalcolite stoichiometry has an XMg value close to 0.202. Host ilmenite with 0.4 mol% hematite is in contact with prismatic sillimanite, quartz, plagioclase and K-feldspar. In run products of annealing experiments performed to investigate the origin of the pseudomorph, armalcolite-ilmenite reaction coronae were developed around relict rutile in rock fragments of quartz eclogite from the Higashi-Akaishi mass of the Sanbagawa belt, central Shikoku, Japan. The experiments were carried out at 1 atm and 960-1050°C with wü stite-magnetite buffer and imply a minimum temperature of 1290°C for armalcolite stability when extrapolated to Skallevikshalsen pressures of 1.0 GPa. Mineral chemistry thermobarometry for Skallevikshalsen yields a metamorphic path with P-T peak conditions of 0.88-1.1 GPa and 970-1050°C, followed by retrograde metamorphism at 0.6 GPa and 780°C, and finally metasomatic alteration at c. 630°C. This P-T path matches that for similar ultrahigh-temperature metamorphic rocks from Rundvågshetta and Sri Lanka, and is markedly lower in temperature than the unreasonable estimates based on armalcolite stability. This discrepancy is inferred to reflect chemical impurities in armalcolite that lower its minimum temperature stability by more than 200°C. © The Geological Society of London 2013.

    DOI: 10.1144/SP383.2

  • Geologic evolution of the Sør Rondane Mountains, East Antarctica: Collision tectonics proposed based on metamorphic processes and magnetic anomalies Reviewed

    Yasuhito Osanai, Yoshifumi Nogi, Sotaro Baba, Nobuhiko Nakano, Tatsuro Adachi, Tomokazu Hokada, Tsuyoshi Toyoshima, Masaaki Owada, Madhusoodhan Satish-Kumar, Atsushi Kamei, Ippei Kitano

    Precambrian Research   234   8 - 29   2013.9

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    Geologic evolution of the Sor Rondane Mountains, East Antarctica: Collision tectonics proposed based on metamorphic processes and magnetic anomalies
    The Sor Rondane Mountains of eastern Dronning Maud Land, East Antarctica can be subdivided into two different crustal terranes: the NE-terrane and the SW-terrane. The former is underlain by basement rocks of amphibolite-facies (unit A) and granulite-facies (unit B), and the latter by granulite-facies (unit C) to greenschist-facies (units D and D') rocks. The metamorphic evolution of the NE-terrane exhibits a clockwise pressure-temperature-time (P-T-t) path and the SW-terrane exhibits a counter-clockwise P-T-t path, and detrital zircon U-Pb ages are also different between the two terranes. The differences in the metamorphic evolution processes and detrital zircon provenance in these two regions can be explained by the collision of the NE-terrane and the SW-terrane which is constrained to have occurred at 600-650 Ma. The collision is interpreted to reflect convergence between the East Maud-East African orogen terrane and the Maud-Nampula terrane of the Kalahari Craton, which are bounded by the Main Tectonic Boundary and passes through the Sor Rondane Mountains. The RTP magnetic anomalies suggest this suture is cut by the subsequent collision boundary between the Kalahari Craton and the Rayner Belt, which is exposed in the Lutzow-Holm region. This collisional belt is considered to have formed at approximately 520-580 Ma. (C) 2013 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.precamres.2013.05.017

  • Unraveling the metamorphic history at the crossing of Neoproterozoic orogens, Sør Rondane Mountains, East Antarctica: Constraints from U-Th-Pb geochronology, petrography, and REE geochemistry Reviewed

    Tomokazu Hokada, Tomokazu Hokada, Kenji Horie, Tatsuro Adachi, Yasuhito Osanai, Nobuhiko Nakano, Sotaro Baba, Tsuyoshi Toyoshima

    Precambrian Research   234   183 - 209   2013.9

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    Unraveling the metamorphic history at the crossing of Neoproterozoic orogens, Sor Rondane Mountains, East Antarctica: Constraints from U-Th-Pb geochronology, petrography, and REE geochemistry
    The Sor Rondane Mountains in East Antarctica preserve two stages of tectonothermal events, at c. 650-600 Ma and c. 560-550 Ma, each of which is also widely preserved elsewhere in Gondwana within tectonic suture zones/orogens, although both ages of tectonothermal events are only rarely documented together in these other parts of Gondwana. A geochronological and petrogenetic study of highly retrogressed garnet-sillimanite-biotite-bearing pelitic gneiss, along with three generations of associated sub-concordant to discordant leucocratic felsic veins, which together are exposed in the southern Austkampane area in the central part of the Sor Rondane Mountains, provides important new constraints on the geological and age relationships between these two regional tectonothermal events. U-Pb SHRIMP dating of zircon grains isolated from the host garnet-sillimanite-biotite gneiss yields at least four distinct zircon age populations of c. 2800-720 Ma, c. 700 Ma, 640-630 Ma, and similar to 500 Ma. Chondrite-normalized REE patterns indicate that a pooled age of 637 +/- 6 Ma represents the timing of recrystallization of metamorphic HREE-depleted zircon, during which the zircon was in equilibrium with garnet. The earliest emplaced leucocratic vein (LV-1), which is partly intermingled with the host garnet-sillimanite-biotite gneiss (and enclosing garnet-bearing pelitic enclaves), contains a population of zircon grains that yielded a crystallization age of 635 +/- 4 Ma, which is almost identical to the age of zircons found within the host pelitic gneiss. The second-generation leucocratic vein (LV-2) occurs as a part of a set of sub-concordant veins/leucosomes comprising mostly biotite and muscovite. Although these particular leucosomes do not contain any zircon, they were found to contain abundant monazite, which yielded U-Pb ages of 640-630 Ma along with some older (relict) similar to 700 Ma ages. The third-generation leucocratic vein (LV-3) was sampled from a suite of pegmatitic veins that discordantly crosscut both the host pelitic gneisses and the older two sets of leucocratic veins. These third-generation veins contain magmatic zircons that exhibit HREE-enriched patterns typical of magmatic zircon crystallization, and which yielded a crystallization age of 550 +/- 3 Ma. The data imply that a major high-grade metamorphic event (possibly at granulite facies) took place in this region along with a subsequent late-stage re-hydration event, all within a relatively narrow time interval of <10 my. at similar to 635 Ma. A subsequent hydration event that took place much later on is recorded by the intrusion of a suite of discordant pegmatitic veins at similar to 550 Ma that are observed to crosscut and alter both the pre-existing pelitic gneiss and the other two older sets of felsic veins. These two ages of tectonothermal events in East Antarctica are coeval with the two major stages of Gondwana assembly. Hence, these results provide new insights into the development of metamorphic-fluid regimes within these major continent-transecting Neoproterozoic orogens. (C) 2012 Elsevier BM. All rights reserved.

    DOI: 10.1016/j.precamres.2012.12.002

  • Timing of metamorphism in the central Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica: Constrains from SHRIMP zircon and EPMA monazite dating Reviewed

    Tatsuro Adachi, Yasuhito Osanai, Tomokazu Hokada, Nobuhiko Nakano, Sotaro Baba, Tsuyoshi Toyoshima

    Precambrian Research   234   136 - 160   2013.9

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    Timing of metamorphism in the central Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica: Constrains from SHRIMP zircon and EPMA monazite dating
    In order to understand the tectonic evolution of the Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica, sensitive high resolution ion microprobe (SHRIMP) U-Pb zircon dating and electron probe micro analyzer (EPMA) U-Th-Pb monazite dating were carried out on igneous rocks and metamorphic rocks whose P. T conditions have been well-constrained. Metamorphic rocks from northern part of Austkampane area recording a clockwise P. T path yield 600-640. Ma as the timing of peak granulite-facies metamorphism and 550-570. Ma for subsequent retrograde metamorphism. The same age relations were obtained from the metamorphic rocks from Brattnipene and eastern Menipa areas recording an anti-clockwise P. T path. Contemporaneous peak metamorphism with contrasting P. T paths can be explained by thrusting up (obduction) of the unit showing a clockwise P. T path onto the unit showing an anti-clockwise P-T path at ca. 660-640. Ma, which is considered to be the main metamorphic event. Metamorphic rocks from Lunckeryggen, southern Walnumfjella and western Menipa areas that preserve amphibolite-facies peak metamorphic conditions and are unaffected by the retrograde hydration, yield ca. 550. Ma. Ages of 500-550. Ma were also obtained on igneous rocks distributed throughout the whole area. Based on the close age relation between metamorphism of amphibolite-facies rocks and igneous activity, it is likely that metamorphism at ca. 550. Ma was caused by emplacement of voluminous igneous bodies. These precise correlation of metamorphic evolution and age would provide strong constraints on the construction of a tectonic model for Gondwana amalgamation. © 2012 Elsevier B.V.

    DOI: 10.1016/j.precamres.2012.11.011

  • Sinistral transpressional and extensional tectonics in Dronning Maud Land, East Antarctica, including the Sør Rondane Mountains Reviewed

    Tsuyoshi Toyoshima, Yasuhito Osanai, Sotaro Baba, Tomokazu Hokada, Nobuhiko Nakano, Tatsuro Adachi, Makoto Otsubo, Masahiro Ishikawa, Yoshifumi Nogi

    Precambrian Research   234   30 - 46   2013.9

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    Sinistral transpressional and extensional tectonics in Dronning Maud Land, East Antarctica, including the Sor Rondane Mountains
    In this paper we clarify the history of deformation in the Sor Rondane Mountains (SRMs), eastern Dronning Maud Land (DML), East Antarctica, and construct a form-line contour map of the metamorphic and plutonic rocks in order to comprehend their structural features and provide constraints on the collisional tectonics of East and West Gondwana. We divide the deformational history in the SRMs into 13 stages (D1-D13). The tectonic regime varied frequently from extension (D3-D4) to layer-normal compression and layer-parallel extension (D5), to compression (D6), extension (D7), sinistral transtension and sinistral strike-slip (D8), compression (D9-D11), and finally extension related to dextral shearing (D12-D13). D7 and D8 indicate major extensional tectonic activity in the southern part of the East African and Antarctic Orogen (EAAO) before the Pan-African compressional event, and after the c. 600 Ma peak of metamorphism. The Pan-African compressional event resulted in the formation of upright folds with horizontal axes that curve along the coastline in central to eastern DML during the D9 deformation that took place between 600 and 560 Ma. The coastline-parallel fold axes and subvertical axial-planes correspond to the X-axes and the XY-planes, respectively, of strain ellipsoids that were progressively rotated counterclockwise toward the central parts of a sinistral shear zone. Therefore, the curved fold axes and axial-planes suggest the EAAO acted as a zone of sinistral transpression during the collision of parts of East and West Gondwana. Around 560-550 Ma, during D12, parallel dyke swarms of granitic pegmatite were intruded along normal faults under a regime of NNE-SSW horizontal extensional stress. The extensional paleo-stress and its related structures suggest dextral rather than sinistral shearing took place along the north-trending EAAO during this late Pan-African event. There is the possibility of a reversal of trans-orogen asymmetry from sinistral to dextral in the southern part of the EAAO. The dyke swarms are considered to have been the heralds of the voluminous 530-500 Ma A-type granite intrusions in DML. At the same time, the Lutzow-Holm Complex was under a non-extensional tectonic regime, and may have been situated in a different orogen from the EAAO. (C) 2013 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.precamres.2013.05.010

  • Multiple thermal events recorded in metamorphosed carbonate and associated rocks from the southern Austkampane region in the Sør Rondane Mountains, East Antarctica: A protracted Neoproterozoic history at the Gondwana suture zone Reviewed

    Nobuhiko Nakano, Yasuhito Osanai, Atsushi Kamei, M. Satish-Kumar, Tatsuro Adachi, Tomokazu Hokada, Sotaro Baba, Tsuyoshi Toyoshima

    Precambrian Research   234   161 - 182   2013.9

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    Multiple thermal events recorded in metamorphosed carbonate and associated rocks from the southern Austkampane region in the Sor Rondane Mountains, East Antarctica: A protracted Neoproterozoic history at the Gondwana suture zone
    This paper provides a detailed analysis of the geological evolution of the southern Austkampane region in the Sor Rondane Mountains, Antarctica, using geological and petrographical observations, geochemical, geochronological, radiogenic, and stable isotopic data, and metamorphic petrological techniques. The study area is dominated by felsic gneisses intercalated with mafic and carbonate rocks. Carbonate rocks include several calc-silicate and mafic to ultramafic blocks with carbonatite-like characteristics. The new data presented here indicate the presence of five important thermal events in the geological history of the region, at c. 1060, 770-750, 655-635, 560-545, and <545 Ma. The c. 1060 Ma event is characterized by granitic volcanic arc magmatism, possibly in an active continental margin setting, involving magmas that may have been sourced from enriched mantle formed by subduction of older crustal material during the formation of Rodinia. The oldest T-(DM) age for this suite is 3.4 Ga. The 770-750 Ma event is characterized by both mafic and felsic magmatism in an active continental margin setting, with magmas being similar to bulk earth composition. The 655-635 Ma thermal event is represented by granulite-facies metamorphism along an anticlockwise pressure-temperature path, involving heating of the lower crust at a continental margin, and subsequent obduction of a cratonic counterpart during collision. Granitic and basaltic magmatism at 560-545 Ma is also associated with retrograde metamorphism and hydration-related partial melting of marble. The carbonate melt, and granitic and basaltic magmas during this event coexisted with each other and formed metasomatic calc-silicates and hornblendites, respectively. The final event at <545 Ma is characterized by the intrusion of an undeformed quartz syenite dyke, which may be related to either (1) collision and melting of preexisting lower crustal material, or (2) melting of slightly enriched mantle material in an extensional tectonic setting following the earlier collisional event. The five thermal events between c. 1100 and 500 Ma recognized in this study from a narrow region of the Sew Rondane Mountains, suggest that a combination of geochronological, whole-rock, and isotope geochemical analyses of metamorphic rocks and the pressure-temperature evolution could constrain the processes that operated during the amalgamation and break-up of Rodinia and the formation of Gondwana. A similar approach is essential in neighboring Gondwana terranes for modeling the protracted events of Neoproterozoic orogenesis. (C) 2012 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.precamres.2012.10.009

  • Ediacaran mineralized microfossils from the basinal facies of the Doushantuo Formation in northwestern Hunan Province, South China Reviewed

    Seishiro Furuyama, Akihiro Kano, Yoko Kunimitsu, Yasuhito Osanai, Tatsuro Adachi, Xinchun Liu, Wei Wang

    Paleontological Research   17 ( 3 )   241 - 250   2013.8

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    The Ediacaran sediments in the Yangtze Block preserve valuable records of biological evolution and drastic climate changes. However, most of the Ediacaran fossil occurrences have been reported from the shallow platformal facies, and few fossils have been described from the deep basinal facies in the Yangtze Block. Here, we report mineralized microfossils from the basinal facies of the Ediacaran Doushantuo Formation at Fengtan in northwestern Hunan Province, China. The submillimeter-sized microfossils with oval-discoidal shapes have apatite walls of variable thickness. The lack of morphological regularity, ornamentation, and distinct apertures indicates that they are not protozoan shells or tests. The apatite walls have more likely replaced the recalcitrant organic walls of prasinophyte phycomata and/or algal resting cysts. These fell from shallow water and were quickly preserved in a deeper setting, associated with a local decline in pH caused by bacterial decomposition and elevated concentration of phosphate in seawater. This discovery provides new insight into the stratigraphic correlation between the shallow and basinal facies of the Chinese Ediacaran. © by the Palaeontological Society of Japan.

    DOI: 10.2517/1342-8144-17.3.241

  • EPMA u-th-pb monazite dating of metamorphic rocks from the mogok metamorphic belt, central myanmar Reviewed

    Kazuhiro Yonemura, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Punya Charusiri, Tun Naing Zaw

    Journal of Mineralogical and Petrological Sciences   108 ( 3 )   184 - 188   2013.4

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    The Mogok Metamorphic Belt (MMB), situated in central Myanmar, contains an assemblage of high-grade metamorphic rocks believed to have been formed during a regional Early Eocene-Oligocene metamorphic event. We newly found Grt-Opx granulite in the Mogok area, which was formed under pressure-temperature (P-T ) conditions estimated as being 6.5-8.7 kbar and 800-950 °C. Based on the results of EPMA U-Th-Pb Mnz dating, the central MMB, which runs through the Mogok, Mandalay, and Meikthila areas, is characterized by an Eocene to Oligocene deformation and fluid infiltration event. In addition, several Mnz grains from the Meikthila and Mandalay areas record ages of the Late Triassic (~ 200 Ma) and Cretaceous (~ 80 Ma and 110 Ma) geologic events.

    DOI: 10.2465/jmps.121019a

  • U-Pb detrital zircon dating of pelitic schists and quartzite from the Kurosegawa Tectonic Zone, Southwest Japan Reviewed

    Aya Yoshimoto, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Kazuhiro Yonemura, Hideo Ishizuka

    Journal of Mineralogical and Petrological Sciences   108 ( 3 )   178 - 183   2013.4

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    The Kurosegawa Tectonic Zone, which is one of the least geochronologically understood areas of the Japanese Islands, contains several rock types of contrasting ages in a serpentinite mélange. This paper presents the U-Pb ages of detrital zircons in pelitic schists and quartzite from the Kurosegawa Tectonic Zone, where high-pressure/ low-temperature metamorphic rock (e.g., blueschist) is one of the main constituents. We analyzed a variety of samples including glaucophane-bearing pelitic schist from the Itsuki area in Kyushu and the Toba area on the Kii Peninsula, and quartzite from the Anan area in eastern Shikoku. The U-Pb age distributions reflect similar characteristics for all three areas, indicating significant peaks at 450-500 Ma and ̃ 600 Ma, with additional scattered ages of 800-1800 Ma, and ages older than 2000 Ma. These results suggest that the provenance of the protolith of these high-pressure/low-temperature metamorphic rocks from the Kurosegawa Tectonic Zone would be the same between Kyushu and the Kii Peninsula through the Shikoku area. The distributions of detrital zircon ages in the Kurosegawa Tectonic Zone are similar to those from Permian-Triassic collision-related metamorphic rocks of the Ogcheon Metamorphic Belt and Gyeonggi Massif in South Korea, and from Devonian sedimentary rocks in the South China Craton.

    DOI: 10.2465/jmps.121022a

  • An overview of metamorphic geology from central Indonesia : Importance of South Sulawesi, Central Java and South-West Kalimantan metamorphic terranes Reviewed

    Nugroho Imam Setiawan, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Kazuhiro Yonemura, Aya Yoshimoto, Joko Wahyudiono, Kaharuddin Mamma

    Bulletin of the Graduate School of Social and Cultural Studies, Kyushu University   19   39 - 55   2013.3

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  • 地球科学的解析に基づく北部九州に産する弥生時代青銅器鋳型石材の産地同定‐地球科学と考古学の融合研究の一例‐

    足立 達朗, 田尻 義了, 小山内 康人, 中野 伸彦, 米村 和紘, 田中 良之, 石田 智子

    MAGMA   95   1 - 12   2013.3

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  • An early Paleozoic tectonothermal event in western Mongolia: Implications for regional extension of the Cambrian orogenic belt Reviewed

    Masaaki Owada, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Kazuhiro Yonemura, Aya Yoshimoto, Madsudan Satish-Kumar, Jargalan Sereenen, Chimedteie Boldbaatar

    JOURNAL OF MINERALOGICAL AND PETROLOGICAL SCIENCES   108 ( 1 )   42 - 46   2013.2

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    The Central Asian Orogenic Belt consists of various terranes amalgamated in several periods from the Late Pre-cambrian/Early Paleozoic to the Late Mesozoic. Mongolia is situated in the center of this belt. Foliated garnet granite (Grt metagranite) and andalusite-bearing massive leucogranite (Leucogranite) are exposed in the Hanhohiyn region of northwest Mongolia. The results of monazite Th-U-Pb dating of the Grt metagranite and Leucogranite give ages of 508 +/- 10 Ma and 496 +/- 4 Ma, respectively. Cambrian granite with an age of similar to 500 Ma is also reported from the south-central part of Mongolia. Combined with previously published age data of metamorphic and intrusive rocks, these results show that the Cambrian orogenic belt spans over 800 km, from the northwest to the south-central part of Mongolia.

    DOI: 10.2465/jmps.121021a

  • Petrology of Lasail plutonic complex, northern Oman ophiolite, Oman: An example of arc-like magmatism associated with ophiolite detachment Reviewed

    Nobutaka Tsuchiya, Tomoyuki Shibata, Masako Yoshikawa, Yoshiko Adachi, Sumio Miyashita, Tatsuro Adachi, Nobuhiko Nakano, Yasuhito Osanai

    LITHOS   156   120 - 138   2013.1

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    Lasail plutonic complex (4.7x3.8 km), as a typical example of late stage intrusive rocks, is located to the south of Wadi Jizi, and intrudes into the base of V1 volcanic rocks and sheeted dike complex. The Lasail plutonic complex consists of various rock types ranging from ultramafic cumulates to tonalite, and is associated with minor amounts of axis stage gabbro to quartz diorite. These rocks are classified into the following eleven rock types: massive gabbro 1, quartz diorite 1 (axis stage intrusive rocks), olivine websterite, olivine gabbronorite, gabbronorite, hornblende gabbronorite, leucogabbronorite (layered gabbros), massive gabbro 2, diorite, quartz diorite 2, and tonalite (late stage intrusive rocks). The layered gabbros are intruded by the massive gabbro 2, and often occur as large irregular blocks in the massive gabbro 2. The massive gabbro 2 intrudes into the layered gabbros, and sometimes grades into hornblende gabbronorite layer of the layered gabbros. In some places, anastomosing veins of the hornblende quartz gabbronorite injected into the gabbronorite, which continue to the layer of leucogabbronorite. These gabbroic rocks are intruded by small intrusions of diorite, quartz diorite 2, and tonalite. The quartz diorite 2 forms rather larger intrusive bodies that intrude into the gabbroic rocks in the higher level. The tonalite occurs as thin dike and sheet mainly in the layered gabbros. N-MORE normalized trace element patterns for the massive gabbro 2 are characterized by enrichment of LILEs relative to REEs, and resemble to 'subduction component' from the island arc tholeiite except a weak enrichment for middle to light REE and P. In contrast, the massive gabbro 1 (axis stage gabbro) shows rather flat pattern similar to MORE with no remarkable 'subduction component'. From the examination of Sr and Nd isotopic signature, the Lasail plutonic rocks are characterized by higher epsilon-Sr values than those of MORE. This suggests that the primitive magma of Lasail complex was influenced by the rocks with higher epsilon-Sr values than those of MORE, e.g., the axis stage rocks interacted with seawater. These lines of evidence suggests that the massive gabbro 2 was formed by the partial melting of residual MORE mantle which is contaminated with slab melt derived from the axis stage rocks interacted with seawater. In addition, petrogenesis of felsic rocks in the Lasail complex can be explained by the partial melting model of pre-existing layered gabbro. U Pb zircon ages analyzed by LA-ICPMS are 100 +/- 2 and 99 +/- 2 Ma for late stage tonalite and 100 +/- 1 Ma for axis stage quartz diorite. These ages are slightly older than the ages reported for felsic rocks in the Oman ophiolite (ca., 95 Ma), and suggest that the conversion from ridge stage to detachment stage took place rapidly. (C) 2012 Elsevier B.V. All rights reserved.

    DOI: 10.1016/j.lithos.2012.10.013

  • Counterclockwise P-T path and isobaric cooling of metapelites from Brattnipene, Sør Rondane Mountains, East Antarctica: Implications for a tectonothermal event at the proto-Gondwana margin Reviewed

    Sotaro Baba, Yasuhito Osanai, Nobuhiko Nakano, Masaaki Owada, Tomokazu Hokada, Tomokazu Hokada, Kenji Horie, Tatsuro Adachi, Tsuyoshi Toyoshima

    Precambrian Research   234   210 - 228   2012.10

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    Counterclockwise P-T path and isobaric cooling of metapelites from Brattnipene, Sør Rondane Mountains, East Antarctica: Implications for a tectonothermal event at the proto-Gondwana margin
    In this paper we provide evidence for a counterclockwise P-T path and isobaric cooling for metapelitic rocks from the Sør Rondane Mountains, eastern Dronning Maud Land, East Antarctica. The counterclockwise path was determined using the following mineral textures and relationships: (1) garnet coronae on sillimanite where the sillimanite is associated with spinel in orthopyroxene-bearing granulite
    (2) garnets that contain inclusions of spinel, sillimanite, and corundum, and where the sillimanite and corundum have sparse tiny spinel inclusions
    (3) the garnet-orthopyroxene-plagioclase-quartz equilibria relationships using the contrasting compositions of high-Mg garnet - plagioclase inclusions and high-Ca garnet coronae - matrix plagioclase point to an increase in pressure. The peak metamorphic conditions were determined by thermobarometry and pseudosection analyses, and are consistently within the ranges 850-900°C and 8-9kbar. Orthopyroxene porphyroblasts close to garnet coronae have relatively high Al2O3 contents (~6.1wt.%), consistent with the highest temperature conditions reported so far from the Sør Rondane Mountains. Prismatic subidioblastic staurolite formed as a secondary mineral along the margins of the garnets, and this retrograde staurolite indicates a back-reaction during isobaric cooling. The conditions for staurolite formation are taken to be 680-700°C and 8.5kbar using isopleths, and this is consistent with the appearance of secondary kyanite in the matrix. On the basis of the metamorphic P-T path and the tectonic setting of the precursor rocks, the following tentative scenarios can be inferred: (1) the heat source for the early sequence of metamorphism was derived from advective heat flow at an active continental margin, and (2) the subsequent increase in pressure was caused by overthrusting or obduction of either oceanic crust or oceanic island arc onto the Brattnipene region. These tectonothermal events took place along a possible proto-Gondwana margin at ca. 650-600Ma. © 2012 Elsevier B.V.

    DOI: 10.1016/j.precamres.2012.10.002

  • Late Proterozoic juvenile arc metatonalite and adakitic intrusions in the Sør Rondane Mountains, eastern Dronning Maud Land, Antarctica Reviewed

    Atsushi Kamei, Kenji Horie, Masaaki Owada, Masaki Yuhara, Nobuhiko Nakano, Yasuhito Osanai, Tatsuro Adachi, Yuki Hara, Madoka Terao, Shinjiro Teuchi, Toshiaki Shimura, Kazuhiro Tsukada, Tomokazu Hokada, Chika Iwata, Kazuyuki Shiraishi, Hideo Ishizuka, Yuhei Takahashi

    Precambrian Research   234   47 - 62   2012.10

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    Late Proterozoic juvenile arc metatonalite and adakitic intrusions in the Sør Rondane Mountains, eastern Dronning Maud Land, Antarctica
    This study is a detailed investigation of the petrology and geochronology of the Late Proterozoic metatonalite in the Sør Rondane Mountains, eastern Dronning Maud Land, Antarctica. Metatonalite is dominant over roughly 100×20km2 area in the southwestern end of the mountain range and is classified into five lithologies: gneissose Bt-Hbl metatonalite, weak gneissose Hbl-Bt metatonalite, Hbl metagabbro, Hbl-Bt tonalitic gneiss, and Bt metatonalite. The gneissose Bt-Hbl metatonalite is the main lithotype widely distributed over this area, which is geochemically categorized as low-K tholeiitic granitoid. Petrological studies suggest that the tholeiitic magma was derived from low-K basalt melting at the crustal depth, and the most plausible tectonic setting is a juvenile oceanic arc. The other four metaplutonic rocks are scattered as stocks or small intrusions in this area. They are geochemically regarded as calc-alkaline adakites related to oceanic slab melting. U-Pb SHRIMP zircon ages of the tholeiitic metatonalite are concentrated at 998-995Ma, whereas the calc-alkaline adakitic rocks are younger and divided between ages 945-920Ma and 772Ma. We believe that the tholeiitic metatonalite was formed first as a juvenile arc component between 998 and 995Ma, followed by adakitic magmatism and oceanic slab melting at 945-920Ma and 772Ma. Magmatism during this stage is not recorded in the western to central Dronning Maud Land. Moreover, the exposure of an adakitic equivalent continues at the farther eastern side of the Sør Rondane Mountains. This suggests that the tectonic framework of the Sør Rondane Mountains, eastern Dronning Maud Land, is different from the western to central Dronning Maud Land. © 2012 Elsevier B.V..

    DOI: 10.1016/j.precamres.2012.09.026

  • 弥生時代北部九州における鋳型石材の原産地同定と鋳型素材の加工と流通 Reviewed

    田尻 義了, 足立 達朗, 中野 伸彦

    日本考古学   0 ( 33 )   95 - 112   2012.5

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    Identification of the Origin for Mold Stones, Processing of Mold Material and Distribution in Northern Kyushu in the Yayoi Period

  • 浮嶽地域に産する泥質グラニュライトのLA-ICP-MS U-Pbジルコン年代とFE-EPMA U-Th-Pbモナザイト年代 Reviewed

    足立 達朗, 小山内 康人, 中野 伸彦, Owada Masaaki

    地質雑   118 ( 1 )   39 - 52   2012.1

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    LA-ICP-MS U&ndash;Pb zircon and FE-EPMA U&ndash;Th&ndash;Pb monazite dating of pelitic granulites from the Mt. Ukidake area, Sefuri Mountains, northern Kyushu
    This paper reports on the laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) U&ndash;Pb dating of zircon and on the field emission electron probe microanalyzer (FE-EPMA) U&ndash;Th&ndash;Pb dating of monazite from pelitic granulites and the surrounding Itoshima granodiorite from the Mt. Ukidake area, Sefuri Mountains, northern Kyushu. Zircons from the Itoshima granodiorite give an age of 102 ± 2 Ma. Metamorphic domains within zircons from pelitic granulites yield a slightly older age of 105 ± 2 Ma, which is consistent with ages of 100&ndash;120 Ma obtained from analysis of monazite by U&ndash;Th&ndash;Pb dating using FE-EPMA. Analysis of inherited domains within zircons from the pelitic granulite gives a narrow range of ages from 400 to 510 Ma, with a youngest age of 360 Ma. These ages are comparable with those of the Renge metamorphic rocks in north Kyushu, although the age and conditions of metamorphism at Renge are significantly different from the granulites analyzed here. Metamorphic ages for the granulites are nearly identical to the reheating age of the Higo metamorphic rocks in central Kyushu, as well as the main meta-morphic age of the Ryoke metamorphic rocks in southwest Japan. However, the age distributions of detrital zircons from the Mt. Ukidake area are different from those of the Higo and Ryoke metamorphic rocks, implying a different provenance for each metamorphic rock unit.

    DOI: 10.5575/geosoc.2011.0022

  • Inferred ultrahigh-temperature metamorphism of amphibolitized olivine granulite from the Sør Rondane Mountains, East Antarctica Reviewed

    Nobuhiko Nakano, Yasuhito Osanai, Sotaro Baba, Tatsuro Adachi, Tomokazu Hokada, Tsuyoshi Toyoshima

    Polar Science   5 ( 3 )   345 - 359   2011.9

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    Inferred ultrahigh-temperature metamorphism of amphibolitized olivine granulite from the Sor Rondane Mountains, East Antarctica
    This paper reports the first evidence of ultrahigh-temperature (UHT) metamorphism from the Sor Rondane Mountains, eastern Dronning Maud Land, East Antarctica, which is evident as orthopyroxene + spinel symplectite in an amphibolitized mafic granulite. The granulite consists of olivine, orthopyroxene, clinopyroxene, pargasitic amphibole, plagioclase, and ilmenite, and it possesses a within-plate alkali basalt signature. The local bulk chemical composition of symplectite, major and trace element compositions, and thermodynamic calculations for the symplectite, suggest the presence of garnet at the high-pressure stage and that the symplectite formed from garnet, olivine, and primary orthopyroxene by decompression from more than 12 kbar at 1000 degrees C. The granulite records a subsequent amphibolite-facies overprint (<700 degrees C at <6 kbar) that involved the chemical re-equilibration of several phases. The obtained pressure-temperature (P-T) conditions and P-T path are different from the UHT metamorphism from the Schirmacher Hills, central Dronning Maud Land, which is considered to have occurred in a back-arc tectonic setting. The relatively high-P conditions and the decompression path reconstructed in the present study are similar to those reported for southern India, Sri Lanka, and part of northeastern Mozambique, possibly reflecting continental thickening and exhumation during the main collision event between East and West Gondwana. (C) 2011 Elsevier B. V. and NIPR. All rights reserved.

    DOI: 10.1016/j.polar.2011.03.005

  • 日本最古の地層 Reviewed

    田切 美智雄, 廣井 美邦, 足立 達朗

    地質学雑誌   117 ( 0 )   S1 - S20   2011.9

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    The oldest formations in Japan
    茨城県多賀山地の日立変成古生層は,産出化石により前期石炭紀以降の地層とされてきた.しかし最近広範にSHRIMP年代が測定され,多賀山地に日本最古のカンブリア系が60 km2以上にわたって広く分布することが明らかになった.A班では,原岩構造のわかるカンブリア系のうち,枕状構造や発泡構造,急冷組織などがみられる火山岩を原岩とする赤沢層と,堆積構造を残す砂泥質堆積岩や礫岩を原岩とする西堂平層,さらに赤沢層に貫入するカンブリア紀花崗岩類を見学する.また,赤沢層を不整合で覆う石炭系大雄院層基底部の礫岩などを見学する.今後,これらの露頭は日本におけるカンブリア系の模式地となることが予想される.今回は当初の研究成果に基づくものであり,今後さらに多くの研究者によってより深く研究され,日本列島形成の初期の様子が明らかになるであろう.

    DOI: 10.5575/geosoc.117.S1

  • SHRIMP dating of magmatism in the Hitachi metamorphic terrane, Abukuma Belt, Japan: Evidence for a Cambrian volcanic arc Reviewed

    Michio Tagiri, Daniel J. Dunkley, Tatsuro Adachi, Yoshikuni Hiroi, C. Mark Fanning

    ISLAND ARC   20 ( 2 )   259 - 279   2011.6

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    Ion microprobe dating of zircon from meta-igneous samples of the Hitachi metamorphic terrane of eastern Japan yields Cambrian magmatic ages. Tuffaceous schist from the Nishidohira Formation contains ca 510 Ma zircon, overlapping in age with hornblende gneiss from the Tamadare Formation (ca 507 Ma), and meta-andesite (ca 507 Ma) and metaporphyry (ca 505 Ma) from the Akazawa Formation. The latter is unconformably overlain by the Carboniferous Daioin Formation, in which a granite boulder from metaconglomerate yields a magmatic age of ca 500 Ma. This date overlaps a previous estimate for granite that intrudes the Akazawa Formation. Intrusive, volcanic, and volcaniclastic lithologies are products of a Cambrian volcanic arc associated with a continental shelf, as demonstrated by the presence of arkose and conglomerate in the lowermost Nishidohira Formation. Granitic magmatism of Cambrian age is unknown elsewhere in Japan, except for a single locality in far western Japan with a similar geological context. Such magmatism is also unknown on the adjacent Asian continental margin, with the exception of the Khanka block in far northeastern China. A 'great hiatus' in the Paleozoic stratigraphy of the Sino-Korean block also exists in the Hitachi terrane between Cambrian volcanic arc rocks and Early Carboniferous conglomerate, and may indicate a common paleogeographic provenance.

    DOI: 10.1111/j.1440-1738.2011.00764.x

  • Major and trace element zoning of euhedral garnet in high-grade (> 900 °C) mafic granulite from the Song Ma Suture zone, northern Vietnam Reviewed

    Nobuhiko Nakano, Yasuhito Osanai, Tatsuro Adachi

    Journal of Mineralogical and Petrological Sciences   105 ( 5 )   268 - 273   2010.10

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    Major and trace element zoning of euhedral garnet in high-grade (> 900 degrees C) mafic granulite from the Song Ma Suture zone, northern Vietnam
    In this study, mafic granulite and related leucosomes from the Song Ma Suture zone in northern Vietnam were investigated. Euhedral garnet appears in both granulites and leucosomes, whereas the former is partly to mostly replaced by orthopyroxene + plagioclase symplectite. Most garnets occurring both in granulite and leucosome contain an Mg-rich and Ca-poor core as well as an Mg-poor and Ca-rich mantle. Garnets in leucosomes have an Mg-rich and Ca-poor thin rim. Amphibole + quartz association is observed only in the core and mantle and not in the rim and matrix. Garnet core is characterized by flat middle to heavy rare earth element (REE) patterns and depletion of light REEs. The rim also contains high concentrations of middle REEs, whereas light and heavy REEs are further depleted in comparison with the core. The REE patterns of the mantle are completely different from core and rim, which show considerable depletion in light to middle REEs and extreme enrichment in heavy REEs. The petrographical features and REE patterns of the associated mineral phases suggest that the complex chemical zonation of garnet might be formed by dehydration melting of amphibole and multiple recrystallization of garnet.

    DOI: 10.2465/jmps.100620a

  • 日立変成岩類 : カンブリア紀のSHRIMPジルコン年代をもつ変成花崗岩質岩類の産状とその地質について Reviewed

    田切 美智雄, 森本 麻希, 望月 涼子, 横須賀 歩, DUNKLEY Daniel J., 足立 達朗

    地學雜誌   119 ( 2 )   245 - 256   2010.4

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    Hitachi Metamorphic Rocks : Occurrence and Geology of Meta-granitic Rocks with Cambrian SHRIMP Zircon Age
    &emsp;Hitachi metamorphic rocks located in the southern part of the Abukuma Mountains, Northeast Japan, distinctively contain meta-volcanic rocks and meta/sheared granitoids. The igneous ages of meta-granite and meta-porphyry from the Hitachi metamorphic rocks were determined by the SHRIMP zircon method. In this paper, we describe occurrence, petrography, and petrochemical characteristics of these studied rocks. Meta-porphyry, with an igneous age of 506 Ma, intrudes into the meta-volcanic rocks of the Akazawa Formation of the Hitachi metamorphic rocks and has a micrographic texture and a spherulitic texture of an igneous origin. Previous studies have already reported an igneous age of 491 Ma for meta/sheared granitoids using the SHRIMP zircon method. Cambrian meta/sheared granitoid samples occur widely as a granitic body in the northeastern part of the Hitachi metamorphic rocks. (A) Meta-granite of the same age (498 Ma) as the sample used for the above dating is found as boulders in meta-conglomerates. The meta-conglomerate, which is found in the Daioin Formation of the Hitachi metamorphic rocks, lies unconformably on a Cambrian meta-granite body. Both meta-volcanic rocks and meta/sheared granitoids have chemical characteristics commonly associated with island arc volcanism. As such, the Akazawa Formation is likely to have originated in the Cambrian era, although we have no SHRIMP age for meta-volcanic rocks of the Akazawa Formation.

    DOI: 10.5026/jgeography.119.245

  • Titanium behavior in quartz during retrograde hydration: Occurrence of rutile exsolution and implications for metamorphic processes in the Sør Rondane Mountains, East Antarctica Reviewed

    Tatsuro Adachi, Tomokazu Hokada, Tomokazu Hokada, Yasuhito Osanai, Tsuyoshi Toyoshima, Sotaro Baba, Nobuhiko Nakano

    Polar Science   3 ( 4 )   222 - 234   2010.1

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    Titanium behavior in quartz during retrograde hydration: Occurrence of rutile exsolution and implications for metamorphic processes in the Sor Rondane Mountains, East Antarctica
    In the central Sor Rondane Mountains, East Antarctica, orthopyroxene felsic gneiss (OPG) was converted to hornblende-biotite felsic gneiss (HBG) by hydration that accompanied the intrusion of pegmatite. The retrograde HBG contains exsolved rutile in quartz. The composition of orthopyroxene and clinopyroxene in OPG suggests a temperature of 840 degrees C (interpreted as the near-peak temperature), and the composition of hornblende and plagioclase in HBG suggests a temperature of 670-700 degrees C (interpreted as the temperature during hydration). Ti concentrations in quartz were measured using an electron probe micro-analyzer, and Ti-in-quartz thermometers were applied. Measured Ti concentrations were 110 ppm (equivalent to 760-820 degrees C) for homogeneous quartz from OPG and 35 ppm (650-700 degrees C) for an exsolution-free area of a quartz grain from HBG. The pre-exsolution Ti concentration in quartz from HBG was reconstructed with 100 mm beam diameter and 25 kV of accelerating voltage, giving 103 ppm, similar to the value obtained for homogeneous quartz in OPG. The temperatures obtained using a Ti-in-quartz thermometer are consistent with those estimated using other thermometers. Although analysis of the main constitute minerals in HBG yields the conditions of hydration, the reconstructed pre-exsolution Ti content in quartz within HBG yields the pre-hydration conditions. Thus, the Ti-in-quartz thermometer is a potentially powerful tool with which to identify the peak or near-peak temperature conditions, even for retrogressed metamorphic rocks. (C) 2009 Elsevier B.V. and NIPR All rights reserved.

    DOI: 10.1016/j.polar.2009.08.005

  • 東ドロンイングモードランド,セール・ロンダーネ山地 地学調査隊報告2007-2008 (JARE-49)

    小山内 康人, 豊島 剛志, 馬場 壮太郎, 外田 智千, 中野 伸彦, 阿部 幹雄, 足立 達朗, Yasuhito Osanai, Tsuyoshi Toyoshima, Sotaro Baba, Tomokazu Hokada, Nobuhiko Nakano, Mikio Abe, Tatsuro Adachi

    南極資料 = Antarctic Record   52 ( 2 )   291 - 398   2008.7

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    第49次日本南極地域観測隊(JARE-49)夏隊・セール・ロンダーネ山地地学調査隊は,ドロンイングモードランド航空ネットワークを利用して航空機で日本から直接南極内陸山地に赴き,2007年11月23日~2008年2月5日の75日間,キャンプ生活を送りながらスノーモービルと徒歩によりセール・ロンダーネ山地中央部地域の地質学的野外調査を実施した.また,ベルギー基地,インド基地等を訪問し,国際交流を実施した.今回の野外調査は,航空機を利用した南極内陸地域野外調査の初の試みであり,2007年度にスタートした国際極年(IPY)とも連動した国立極地研究所の一般プロジェクト研究(課題番号P-5-1:代表・本吉洋一)の初年度調査でもある.本報告では,設営面での計画の立案・準備から実施経過に至る過程について詳しく述べる.The Sør Rondane Mountains field research party, part of the summer party of the 49th Japanese Antarctic Research Expedition (JARE-49), carried out geological field work in the central part of the Sør Rondane Mountains and improved international goodwill with Belgian, Indian and other national expeditions for 75 days from November 23, 2007 to February 5, 2008. The field party tried to access the Sør Rondane Mountains directly from Japan by using the Dronning Maud Land Air Network (DROMLAN), which is the first attempt at an Antarctic inland field survey just using an airplane through the 50 years of JARE history. This research expedition was linked together with the International Polar Year and also the first operation program of a research project of National Institute of Polar Research (No. P-5-1: leader, Y. Motoyoshi). This report gives the details on the operation planning and a summary of the fieldwork including logistics and weather report.

    DOI: 10.15094/00009458

  • Contrasting geological background based on the geochemistry of the mafic metamorphic rocks in central Dronning Maud Land

    Baba, S; Owada, M; Hokada, T; Adachi, T; Nakano, N

    GEOLOGICAL MAGAZINE   160 ( 5 )   993 - 1009   2023.5   ISSN:0016-7568 eISSN:1469-5081

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    This paper reports geochemical characteristics of mafic gneisses and granulites collected from four localities in central Dronning Maud Land to evaluate the tectonic setting of their precursor rocks. Precursor rocks for the mafic gneisses and granulites in central Dronning Maud Land were formed in different geological backgrounds and tectonic settings. The mafic gneisses and granulites in the Schirmacher Hills were derived from basaltic rocks in a back-arc setting. Published U-Pb zircon ages and the geochemical variation of the basement rocks indicate their emplacement between 800 and 650 Ma, close to peak metamorphism. While similar protoliths were recognized in the inland nunataks of Hochlinfjellet, in Filchnerfjella the mafic gneisses/granulites were derived from basaltic rocks formed in marginal continental arcs or island arcs. Highly disturbed trace-element patterns indicate that the metamorphic process influenced the geochemical composition during the prograde metamorphic stage. Our results imply that the outcrops in central Dronning Maud Land with different metamorphic ages contain mafic gneisses/granulites from precursor rocks formed under different tectonic settings.

    DOI: 10.1017/S0016756823000092

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  • Petrography of V and Zn-rich gahnite-sillimanite-muscovite gneiss from Menipa, Sør Rondane Mountains, East Antarctica.

    Tatsuro Adahi, Tetsuo Kawakami, Fumiko Higashino, Masaoki Uno

    The 14th Symposium on Polar Science  2023.11 

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    Event date: 2023.11

    Language:English  

    Venue:国立極地研究所(立川市)   Country:Other  

  • 東南極セール・ロンダーネ山地,メーニパ地域に産するバナジウムと亜鉛に富む亜鉛スピネル-珪線石-白雲母片麻岩の記載岩石学的特 徴

    足立達朗,河上哲生,東野文子,宇野正起,

    日本鉱物科学会2023年年会講演要旨  2023.9 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:大阪公立大学   Country:Japan  

  • 東南極セール・ロンダーネ山地,メーニパに産する異なるP-T-t履歴を示す変成岩類.

    足立達朗,河上哲生,東野文子,宇野正起,

    日本地質学会第130年学術大会  2023.9 

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:京都大学   Country:Japan  

  • Multiple fluid infiltration during post-peak metamorphism in southern Perlebandet, Sør Rondane Mountains, East Antarctica .

    Fumiko Higashino, Tetsuo Kawakami, Tatsuro Adachi, Masaoki Uno,

    The 13th Symposium on Polar Science  2022.11 

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  • 東南極セール・ロンダーネ山地,ブラットニーパネに産する変成岩類のin-situ年代測定に基づくP-T-t履歴解析

    足立 達朗、河上 哲生、東野 文子、宇野 正起

    日本地質学会第129年学術大会  2022.9 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学(新宿区)   Country:Japan  

  • 東南極セール・ロンダーネ山地パーレバンデ南部で見られる二酸化炭素・塩素を含む流体流入

    東野 文子、河上 哲生、足立 達朗、宇野 正起

    日本地質学会第129年学術大会  2022.9 

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    Event date: 2022.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:早稲田大学(新宿区)   Country:Japan  

  • Pressure-Temperature path of a garnet-biotite-sillimanite gneiss from the Oyayubi ridge, Brattnipene, Sør Rondane Mountains.

    Tatsuro Adachi, Tetsuo Kawakami, Masaoki Uno, Fumiko Higashino

    The 12th Symposium on Polar Science  2021.11 

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    Event date: 2021.11

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    Country:Other  

  • Paleostress inversion in hydro-fractured metamorphic complex using 3D aerophotography images (Sør Rondane Mountains, East Antarctica)

    Masaoki Uno, Tetsuo Kawakami, Tatsuro Adachi, Fumiko Higashino

    The 12th Symposium on Polar Science  2021.11 

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    Paleostress inversion in hydro-fractured metamorphic complex using 3D aerophotography images (Sør Rondane Mountains, East Antarctica)

  • はんれい岩-閃緑岩-トーナル岩複合岩体:アジア大陸東縁,前期白亜紀沈み込み帯の地殻形成,北部九州の例

    大和田 正明, 砺山 駿吾, 亀井 淳志, 小山内 康人, 中野 伸彦, 足立 達朗

    日本鉱物科学会2021年年会  2021.9 

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    Event date: 2021.9

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  • 東南極セール・ロンダーネ山地メーニパに産する泥質片岩中の灰礬柘榴石,チタン石および燐灰石ウラン–鉛年代

    仁木 創太, 河上 哲生, 足立 達朗, 宇野 正起, 東野 文子, 平田 岳史

    日本鉱物科学会2021年年会  2021.9 

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  • ミャンマー・モゴック北方に見出されるUHT変成岩

    Htay Khaing, 小山内 康人, 中野 伸彦, Dolzodmaa Bolgbaatar, 北野 一平, Htet Zaw, 足立 達朗, 大和田 正明

    日本鉱物科学会2021年年会  2021.9 

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    Event date: 2021.9

    Language:Others  

    Country:Other  

  • 後退変成期における二段階の流体流入:東南極セール・ロンダーネ山地パーレバンデの例

    東野 文子, 河上 哲生, 足立 達朗, 宇野 正起

    日本地質学会第128年学術大会  2021.9 

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  • 東南極セール・ロンダーネ山地,メーニパ地域で認められる変成条件のギャップ

    足立 達朗, 河上 哲生, 東野 文子, 宇野 正起

    日本地質学会第128年学術大会  2021.9 

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  • Contrasting chemical reactions and fluid transport by melt and aqueous fluids during middle crustal fracturing (Sør Rondane Mountains, East Antarctica)

    宇野 正起, 河上 哲生, 足立 達朗, 東野 文子, 土屋 範芳

    日本地球惑星科学連合2021年大会  2021.6 

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  • ZIRCON U–Pb AGES AND GEOCHEMISTRY OF GRANITOIDS FROM SOUTHWEST MONGOLIA

    Dolzodmaa Boldbaatar, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro ADACHI, Ippei Kitano, Kundyz Syeryekhan

    日本地球惑星科学連合2021年大会  2021.6 

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  • Post-peak Cl- and CO2-bearing fluids in a Grt-Sil-Bt gneiss from southern Perlebandet, Sør Rondane Mountains, East Antarctica

    東野 文子, 河上 哲生, 足立 達朗, 宇野 正起

    日本地球惑星科学連合2021年大会  2021.6 

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  • Geochronology of the metamorphic rocks at the Oyayubi ridge of Brattnipene, Sør Rondane Mountains, East Antarctica.

    足立 達朗、河上 哲生、宇野 正起、東野 文子

    日本地球惑星科学連合2021年大会  2021.6 

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  • Decompression P-T evolution recorded in a pelitic gneiss from Tangarden, Sør Rondane Mountains, East Antarctica

    河上 哲生, 東野 文子, 足立 達朗, 宇野 正起

    日本地球惑星科学連合2021年大会  2021.6 

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  • Contrasting P-T records of the metamorphic rocks at the Oyayubi ridge of Brattnipene, Sør Rondane Mountains, East Antarctica.

    Tatsuro Adachi, Tetsuo Kawakami, Masaoki Uno, Fumiko Higashino, Noriyoshi Tsuchiya

    The 11th Symposium on Polar Science  2020.12 

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  • Traces of fluid movement in the active lower crust of collision setting observed in the Sør Rondane Mountains, East Antarctica: A field survey report of JARE61

    Tetsuo Kawakami, Tatsuro Adachi, Masaoki Uno, Fumiko Higashino, Noriyoshi Tsuchiya

    The 11th Symposium on Polar Science  2020.12 

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  • Petrological characteristics of granulite/amphibolite-facies "bleached" hydration zones caused by fluid infiltration along fractures at middle crustal conditions in the Sør Rondane Mountains, East Antarctica

    Masaoki Uno, Tetsuo Kawakami, Tatsuro Adachi, Fumiko Higashino, Noriyoshi Tsuchiya

    The 11th Symposium on Polar Science  2020.12 

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  • Traces of fluid movement in the active lower crust of collision setting observed in the Sør Rondane Mountains, East Antarctica: A field survey report of JARE61 International conference

    Tetsuo Kawakami, Tatsuro Adachi, Masaoki Uno, Fumiko Higashino, Noriyoshi Tsuchiya

    The 11th Symposium on Polar Science  2020.12 

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    Event date: 2020.11 - 2020.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:国立極地研究所,立川市およびオンライン   Country:Japan  

  • Contrasting P-T records of the metamorphic rocks at the Oyayubi ridge of Brattnipene, Sør Rondane Mountains, East Antarctica. International conference

    Tatsuro Adachi, Tetsuo Kawakami, Masaoki Uno, Fumiko Higashino, Noriyoshi Tsuchiya

    The 11th Symposium on Polar Science  2020.12 

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    Event date: 2020.11 - 2020.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:国立極地研究所,立川市およびオンライン   Country:Japan  

  • Petrological characteristics of granulite/amphibolite-facies "bleached" hydration zones caused by fluid infiltration along fractures at middle crustal conditions in the Sør Rondane Mountains, East Antarctica International conference

    Masaoki Uno, Tetsuo Kawakami, Tatsuro Adachi, Fumiko Higashino, Noriyoshi Tsuchiya

    The 11th Symposium on Polar Science  2020.12 

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    Event date: 2020.11 - 2020.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:国立極地研究所,立川市およびオンライン   Country:Japan  

  • Permo–Triassic tectonic processes in Kannak Complex, Kon Tum Massif, Vietnam

    Owada, M, Osanai , Y, Nakano , N, Kitano , I, Adachi , T

    MAESA Second International Conference on Applied Earth Sciences in Myanmar and Neighboring Regions  2019.12 

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  • Ultrahigh-temperature metamorphic rocks from Highland Complex, Sri Lanka

    Owada, M, Osanai , Y, Nakano , N, Kitano , I, Adachi , T

    MAESA Second International Conference on Applied Earth Sciences in Myanmar and Neighboring Regions  2019.12 

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  • LA–ICP–MS zircon U-Pb geochronology of granitic rocks in the Central Mongolia

    Dolzodmaa , B. , Osanai , Y. , Nakano , N. , Adachi , T.

    International Association for Gondwana Research 2019 Convention and 16th International Conference on Gondwana to Asia  2019.11 

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  • Zircon chronology for high temperature metamorphic rocks in the Wanni and Highland Complexes, Sri Lanka

    Kitano , I. , Osanai , Y. , Nakano , N. , Adachi , T.

    International Association for Gondwana Research 2019 Convention and 16th International Conference on Gondwana to Asia  2019.11 

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  • Petrology of high-grade metamorphic rocks in West Timor, Indonesia

    Wahyuandari, F.A.C, Osanai , Y, Nakano , N, Adachi , T, Setiawan, N.I

    International Association for Gondwana Research 2019 Convention and 16th International Conference on Gondwana to Asia  2019.11 

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  • Newly determined U-Pb zircon ages from the Napier Complex, East Antarctica

    Osanai , Y. , Kitano , I. , Nakano , N. , Adachi , T. , Toyoshima , T. , Hokada , T. , Owada , M. , Tsunogae , T. , Sinh , V.B.T.

    International Association for Gondwana Research 2019 Convention and 16th International Conference on Gondwana to Asia  2019.11 

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  • Metamorphic history of the high-grade metamorphic rocks in the Ngoc Linh Complex, Kontum Massif, Vietnam

    Sinh , V.B.T. , Osanai , Y. , Nakano , N. , Adachi , T. , Kitano , I. , Owada , M.

    International Association for Gondwana Research 2019 Convention and 16th International Conference on Gondwana to Asia  2019.11 

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  • 南極セール・ロンダーネ山地の角閃岩相変成作用の再検討

    外田智千, 堀江憲路, 小山内康人, 中野伸彦, 足立達朗, 豊島剛志, 馬場壮太郎

    日本地質学会第126回学術大会  2019.9 

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  • Pressure–temperature-time conditions of metamorphism of pelitic gneisses in the Gobi-Altai Mountains from southwestern Mongolia

    Kundyz S. , Osanai , Y. , Nakano , N. , Adachi , T. , Jargalan , S. , Owada , M. , Satish-Kumar , M. , Boldbaatar , Ch.

    日本鉱物科学会2019年年会  2019.9 

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  • 青海地域蓮華変成岩類の記載岩石学的特徴とジルコンU-Pb年代

    北野一平 , 小山内康人 , 中野伸彦 , 足立達朗

    日本鉱物科学会2019年年会  2019.9 

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  • 西南日本九州北部に分布する三郡変成帯結晶片岩の砕屑性ジルコン後背地の多様性

    北野一平 , 小山内康人 , 中野 伸彦 , 足立達朗

    日本鉱物科学会2019年年会  2019.9 

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  • 東南極セール・ロンダーネ山地の泥質片麻岩から見出されたコランダムと石英包有物の産状とその解釈

    外田智千 , 小山内康人 , 中野伸彦 , 足立達朗 , 豊島剛志 , 馬場壮太郞

    日本鉱物科学会2019年年会  2019.9 

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  • 東南極セール・ロンダーネ山地北部に産するFe-Alに富むグラニュライトの変成組織とザクロ石REEの相違

    馬場壮太郎 , 小山内康人 , 中野伸彦 , 外田智千 , 足立達朗 , 豊島剛志

    日本鉱物科学会2019年年会  2019.9 

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  • 山口県長門構造帯に産する変成岩・深成岩類のジルコンU–Pb年代の特徴

    北野一平 , 小山内康人 , 中野伸彦 , 足立達朗 , 加藤涼介 , Sinh , V.B.T

    日本鉱物科学会2019年年会  2019.9 

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  • 八幡浜大島に分布する大島変成岩体のLA-ICP-MSジルコンU-Pb年代と地体構造上の意義

    小山内康人, 北野一平, 中野伸彦, 足立達朗, Sinh, V.B.T, 小松正幸

    日本鉱物科学会2019年年会  2019.9 

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  • モンゴル北西部・ハンホヒン山地に産する泥質片麻岩に含まれるザクロ石中のクリストバライト包有物

    足立達朗 , 小山内康人 , 中野伸彦 , Kundyz , S. , Jargalan , S. , 大和田 正明 , Satish-Kumar M.

    日本鉱物科学会2019年年会  2019.9 

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  • ベトナム・コンツム地塊,カンナック岩体,ペルム紀-三畳紀,火成作用と変成作用の関係

    大和田正明, 小山内康人, 中野伸彦, 北野一平, 足立達朗

    日本鉱物科学会2019年年会  2019.9 

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  • Zircon–monazite–garnet behaviors during high-grade metamorphism in the Kontum Massif, Vietnam

    Sinh , V.B.T. , Osanai , Y. , Nakano , N. , Adachi , T. , Kitano , I. , Owada , M.

    日本鉱物科学会2019年年会  2019.9 

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  • モンゴルアルタイ山脈の泥質変成岩に記録された古生代・沈み込みー付加ー大陸衝突に伴う造山帯運動

    中野伸彦 , 小山内康人 , Jargalan S. , 足立達朗 , Kundyz , S. , 大和田正明 , Satish-Kumar M

    日本地球惑星科学連合2019年大会  2019.5 

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  • 北上山地から見いだされた「ラテライト質」変成岩の化学組成とジルコン U-Pb年代について

    土谷信高, 熊谷大和, 足立達朗, 中野伸彦, 小山内康人

    日本地球惑星科学連合2019年大会  2019.5 

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  • Zircon U-Pb ages of high-grade metamorphic rocks from the Kontum Massif, Vietnam

    Sinh , V.T, Osanai , Y, Nakano , N, Adachi , T

    The Fifteenth Regional Congress on Geology, Mineral and Energy Resources of Southeast Asia (GEOSEA XV)  2018.10 

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  • Geochemistry and geochronology of granitic rocks from the Ereendavaa area in northeastern Mongolia

    Munkhdelger, B, Osanai , Y, Nakano , N, Adachi, T, Tamir, B, Undraa, S, Jargalan , S, Dolzodmaa, B, Bolormaa, T

    日本鉱物科学会2018年年会  2018.9 

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  • モンゴルアルタイ山脈,昇温期及び降温期の紅柱石と珪線石を含む粗粒藍晶石泥質変成岩の形成過程

    中野伸彦 , 小山内康人 , Jargalan , S. , 足立達朗 , Kundyz , S. , 大和田正明 , Satish-Kumar , M.

    日本鉱物科学会2018年年会  2018.9 

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  • スリランカ・ハイランド岩体およびワンニ岩体に分布する変成火成岩中のインヘリテッドジルコンHf同位体組成

    北野一平 , 小山内康人 , 中野伸彦 , 足立達朗

    日本鉱物科学会2018年年会  2018.9 

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  • REE mineralization in alkaline plutonic rocks from north-west Mongolia

    Tamir, B, Osanai , Y, Nakano , N, Adachi, T, Jargalan , S, Dolzodmaa, B, Bolormaa, T

    日本鉱物科学会2018年年会  2018.9 

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  • Geochronology of assumed cratonal terranes in Mongolia

    Undraa , S, Osanai , Y, Nakano , N, Adachi, T, Jargalan , S, Dolzodmaa, B, Bolormaa, T, Tamir, B, Munkhdelger

    日本鉱物科学会2018年年会  2018.9 

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  • Protolith characteristics and tectonic implications for high-grade metamorphic rocks in the Highland and Wanni Complexes, Sri Lanka

    Kitano , I. , Osanai , Y. , Nakano , N. , Adachi , T.

    日本地球惑星科学連合2018年大会  2018.5 

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  • U–Pb zircon geochronology on high-grade metamorphic rocks from the Higo metamorphic Belt in central Kyushu, Japan

    Bui, B.T.S, Osanai , Y, Nakano , N, Adachi , T

    日本地球惑星科学連合2018年大会  2018.5 

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  • Mineralogy and geochemistry of coal fly ash generated from the thermal power plant in Ulaanbaatar, Mongolia

    Bolormaa , T. , Osanai , Y. , Nakano , N. , Adachi , T.

    日本鉱物科学会2017年年会  2017.9 

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  • スリランカ・ハイランド岩体およびワンニ岩体に分布する高温変成岩の地球化学的・年代学的 特徴と形成テクトニクス

    北野一平, 小山内康人, 中野伸彦, 足立達朗

    日本鉱物科学会2017年年会  2017.9 

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  • LA-MC-ICP-MSを用いたアパタイトのSr/Nd同位体比測定と花崗岩類への応用

    中野伸彦, 亀井淳志, 足立達朗, 小山内康人

    日本鉱物科学会2017年年会  2017.9 

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  • カレドニア造山帯トロムセ・ナップに産する珪⻑質片麻岩中のジルコン年代学

    門田康弘, 平島崇男, 加藤涼介, 小山内康人, 中野伸彦, 足立達朗, 坂田周平, 大林秀行, 平田岳史, Jarsolaw, M, Marian, J

    日本鉱物科学会2017年年会  2017.9 

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  • Geological and geochemical characteristics of UHT metamorphic rocks from the Amundsen Bay region in the Napier Complex, East Antarctica

    Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Masaaki Owada, Tsuyoshi Toyoshima, Toshiaki Tsunogae, Tomokazu Hokada

    JpGU-AGU Joint Meeting 2017  2017.5 

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  • Paleozoic multiple thermal events in the Altai Range, Mongolia

    Nobuhiko Nakano, Yasuhito Osanai, Masaaki Owada, M. Satish-Kumar, Tatsuro Adachi, Jargalan Sereenen, Syeryekhan Kundyz, Boldbaatar Chimedtseie

    JpGU-AGU Joint Meeting 2017  2017.5 

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  • 南部北上山地,神楽複合岩類に伴われる珪長質岩類のジルコンU-Pb年代と岩石化学的特徴

    土谷信高, 足立 達朗, 中野 伸彦, 小山内 康人

    JpGU-AGU Joint Meeting 2017  2017.5 

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  • Trace element partitioning during partial melting in main zone of the Hidaka metamorphic belt

    Rosuke Kato, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Ippei Kitano

    JpGU-AGU Joint Meeting 2017  2017.5 

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  • Tectono-metamorphic evolution of the Kurosegawa tectonic belt in Southwest Japan

    Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi, Ippei Kitano, Aya Yoshimoto, Rosuke Kato, Nobutaka Tsuschiya, Hideo Ishizuka

    JpGU-AGU Joint Meeting 2017  2017.5 

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  • Petrology and Geochemistry of Metamorphic rock from the Kabul Block, Afghanistan

    Abdul Ghulam Nabi, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi

    JpGU-AGU Joint Meeting 2017  2017.5 

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  • Metamorphic process of the Tromso Nappe in the Scandinavian Caledonides based on P-T-t history of felsic gneiss

    門田 康弘, 平島 崇男, 加藤涼介, 小山内 康人, 中野 伸彦, 足立 達朗, 坂田 周平, Majka Jaroslaw, Janak Marian

    2017.5 

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    Metamorphic process of the Tromso Nappe in the Scandinavian Caledonides based on P-T-t history of felsic gneiss

  • モンゴル・アルタイ山脈,粗粒藍晶石を含む泥質変成岩中の紅柱石と珪線石

    中野 伸彦, 小山内 康人, 足立 達朗, 大和田 正明, Satish-Kumar M, Jargalan Sereenen, Syeryekhan Kundyz

    日本地質学会学術大会講演要旨  2016.9 

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    Andalusite and sillimanite in coarse-grained kyanite-bearing pelitic rocks from the Altai Range, Mongolia

  • 南部北上山地,カンブリア紀甫嶺珪長質岩類の産状について

    土谷 信高, 足立 達朗, 中野 伸彦, 小山内 康人

    日本地質学会学術大会講演要旨  2016.9 

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    Geology of the Cambrian Horei felsic rocks in southern Kitakami Mountains, Japan

  • 東南極セール・ロンダーネ山地北部に産するFe-Alに富むグラニュライト中の黒雲母ー石英シンプレクタイト

    馬場 壮太郎, 小山内 康人, 中野 伸彦, 外田 智千, 足立 達朗, 豊島 剛志

    日本地質学会学術大会講演要旨  2016.9 

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    Formation of biotite-quartz symplectite in Fe-Al rich granulites, north Sør Rondane Mountains, East Antarctica

  • 日立カンブリア系の帰属から日本海が開く前の東北日本弧の古地理を考察する

    田切 美智雄, 堀江 憲路, 足立 達朗

    日本地質学会学術大会講演要旨  2016.9 

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    Paleogeographic consideration to the basement of the Northeast Japan Arc before the opening of the Japan Sea from the viewpoint of the belonging of the Hitachi Cambrian.

  • モンゴル・アルタイ地域に認められる異なる変成履歴

    NAKANO Nobuhiko, OSANAI Yasuhito, OWADA Masaaki, SATISH-KUMAR Madhusoodhan, ADACHI Tatsuro, ADACHI Tatsuro, JARGALAN Sereenen, YOSHIMOTO Aya, SYERYEKHAN Kundyz, BOLDBAATAR Chimedtseie, PUNTSAGDAMBA Nomintsetseg, BOLDBAATAR Dolzodmaa

    日本地球惑星科学連合大会予稿集(Web)  2016.5 

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    Contrasting pressure-temperature records from the Altai Range, Mongolia; constraints from multiple growth of garnet, aluminosilicates and monazite

  • LA-ICP-MS Zircon U-Pb ages for metamorphic rocks from the Highland and Wanni Complexes, Sri Lanka

    Ippei Kitano, Yasuhito Osanai, Nobuhiko Nakano, Tatsuro Adachi

    日本地球惑星科学連合2016年連合大会  2016.5 

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    LA-ICP-MS Zircon U-Pb ages for metamorphic rocks from the Highland and Wanni Complexes, Sri Lanka

  • グラニュライト中の「珪長岩包有物」から推定される大陸衝突型造山帯での地殻深部過程

    廣井 美邦, 小林 記之, 石川 正弘, 小山内 康人, 西戸 裕嗣, 本吉 洋一, 白石 和行, 鹿山 雅裕, 三宅 亮, 足立 達朗, 外田 智千, Prame Bernard, Satish-Kumar Madhusoodhan, 柳 綾彦, 加藤 睦実

    日本地質学会学術大会講演要旨  2015.9 

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    Deep crustal processs in continental collision orogens inferred from felsite inclusions in granulites

  • 氷上花崗岩類と古生代花崗岩類のSr-Nd同位体比

    佐々木 惇, 土谷 信高, 柴田 知之, 芳川 雅子, 足立 達朗, 中野 伸彦, 北野 一平, 小山内 康人

    日本地質学会学術大会講演要旨  2015.9 

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    Sr-Nd isotopes compositions of the Hikami granitic Rocks and Paleozoic granitic rocks

  • 東南極セール・ロンダーネ山地における角閃岩相変成作用

    外田 智千, 堀江 憲路, 小山内 康人, 中野 伸彦, 足立 達朗, 豊島 剛志, 馬場 壮太郎

    日本地質学会学術大会講演要旨  2015.9 

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    Amphibolite-facies metamorphism in the Sor Rondane Mountains, East Antarctica

  • 東南極セール・ロンダーネ山地北部,ブラットニーパネに産する苦鉄質グラニュライトの減圧変成組織

    馬場 壮太郎, 上里 萌子, 外田 智千, 足立 達朗, 小山内 康人, 中野 伸彦, 豊島 剛志

    日本地質学会学術大会講演要旨  2015.9 

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    Decompressional metamorphic texture of mafic granulite in Brattnipene, Sør Rondane Mountains, East Antarctica

  • 日高変成帯主帯における苦鉄質変成岩の部分溶融

    加藤 涼介, 小山内 康人, 中野 伸彦, 足立 達朗, 北野 一平, 加々島 慎一

    日本地質学会学術大会講演要旨  2015.9 

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    Partial melting of mafic metamorphic rock in the Main Zone of the Hidaka metamorphic belt in Hokkaido

  • 基礎試錐「気仙沼沖」花崗岩コアのジルコンU--Pb年代と全岩化学組成の特徴

    土谷 信高, 足立 達朗, 中野 伸彦, 小山内 康人, 荒戸 裕之

    日本地質学会学術大会講演要旨  2015.9 

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    U-Pb zircon age and petrochemistry of the granitic rocks from the core of MITI-Kesennuma Oki Well, Japan

  • 地球科学的精密分析に基づく今山系石斧石材に関する新たな展開

    足立 達朗, 田尻 義了, 中野 伸彦, 小山内 康人

    日本文化財科学会第32回大会  2015.5 

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    Event date: 2015.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京学芸大学   Country:Japan  

  • 石斧資料の新たな資料採取法の開発と紹介

    田尻 義了, 足立 達朗

    平成26年度九州考古学会総会  2014.11 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡大学   Country:Japan  

  • 地球科学的高精度分析に基づく今山系石斧の新たな原産地

    足立 達朗, 田尻 義了, 渡部芳久, 石田智子, 中野 伸彦, 小山内 康人, 田中 良之

    平成26年度九州考古学会総会  2014.11 

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    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:福岡大学   Country:Japan  

  • スリランカ・Highland Complex中央部に分布する変成岩のLA-ICP-MSジルコンU-Pb年代

    北野 一平, 小山内 康人, 中野 伸彦, 足立 達朗, Malaviarachchi Sanjeewa P.K, Dharmapriya P.L

    日本地質学会学術大会講演要旨  2014.9 

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    LA-ICP-MS Zircon U-Pb ages of metamorphic rocks from the central parts of Highland Complex, Sri Lanka

  • 黒瀬川構造帯に分布する花崗岩類および変ハンレイ岩類の年代学的特徴

    小山内 康人, 吉本 紋, 中野 伸彦, 足立 達朗, 北野 一平, 米村 和紘, 佐々木 惇, 土谷 信高, 石塚 英男

    日本地質学会学術大会講演要旨  2014.9 

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    Geochronological characteristics of granitic and metagabbroic rocks from the Kurosegawa Tectonic Belt

  • 白亜紀火成活動の起源マントル,北部九州と領家帯西部

    大和田 正明, 浦島 遼平, 亀井 淳志, 小山内 康人, 中野 伸彦, 足立 達朗

    日本地質学会学術大会講演要旨  2014.9 

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    Source mantle of the Cretaceous magmatism in the North Kyushu and western Ryoke belt

  • 東南極セール・ロンダーネ山地北部,ベストハウゲンに産するFe-Alに富むグラニュライトの変成組織

    馬場 壮太郎, 小山内 康人, 中野 伸彦, 外田 智千, 足立 達朗, 豊島 剛志

    日本地質学会学術大会講演要旨  2014.9 

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    Metamorphic texture of Fe-rich granulites in Vesthaugen, north Sør Rondane Mountains, East Antarctica

  • 南部北上山地,氷上花崗岩類の岩石学的研究

    佐々木 惇, 土谷 信高, 足立 達朗, 中野 伸彦, 小山内 康人

    日本地質学会学術大会講演要旨  2014.9 

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    Petrochemical study of the Hikami Granitic rocks in the south Kitakami Mountains

  • 南部北上山地から見い出されたカンブリア紀花崗岩類の年代学的および岩石学的特徴

    土谷 信高, 柳澤 嵩志, 佐々木 惇, 足立 達朗, 中野 伸彦, 小山内 康人

    日本地質学会学術大会講演要旨  2014.9 

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    Petrology and geochronology of late Cambrian granitic rocks from southern Kitakami Mountains, Japan

  • モンゴル・アルタイ山脈に認められる時計回りと反時計回りの変成履歴とその年代学的特徴

    中野 伸彦, 小山内 康人, 大和田 正明, Satish-Kumar M, 足立 達朗, 吉本 紋, Jargalan Sereenen, Syeryekhan Kundyz

    日本地質学会学術大会講演要旨  2014.9 

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    Clockwise and anti-clockwise metamorphic evolutions from the Altai Mountains in Mongolia

  • ヘグボマイト類の高温高圧実験

    志村 俊昭, 足立 達朗, 中野 伸彦, 小山内 康人, 川嵜 智佑

    日本地質学会学術大会講演要旨  2014.9 

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    High P-T experiments for h&ouml;gbomite-group minerals

  • Metamorphic evolution of South Sulawesi, Central Java, and South Kalimantan in Indonesia

    SETIAWAN Nugroho Imam, OSANAI Yasuhito, NAKAN Nobuhiko, ADACHI Tatsuro, YOSHIMOTO Aya, YONEMURA Kazuhiro

    日本鉱物科学会年会講演要旨集  2013.9 

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    Metamorphic evolution of South Sulawesi, Central Java, and South Kalimantan in Indonesia

  • モンゴル・アルタイ山脈の変成作用とテクトニクス

    中野 伸彦, 小山内 康人, 足立 達朗, SATISH-KUMAR M, 大和田 正明, JARGALAN S, BOLDBAATAR Ch, 吉本 紋, SYERYEKHAN K

    日本鉱物科学会年会講演要旨集  2013.9 

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    Metamorphic evolution and tectonics of the Altai Mountains, Mongolia

  • マダガスカル共和国中央東部に産する変成岩類の年代学的特徴 : 地殻進化過程の制約

    市來 孝志, 石川 正弘, 小山内 康人, 中野 伸彦, 足立 達朗

    日本鉱物科学会年会講演要旨集  2013.9 

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    Geochronology of the metamorphic rocks from east-central Madagascar : constraints on crustal evolution process

  • Petrology and geochronology of pelitic gneisses in the Hanhohiyn Mountains, the northwestern part of Mongolia

    足立 達朗, 小山内 康人, 中野 伸彦, 大和田 正明, Satish-Kumar M, Jargalan S, Boldbaatar C, 米村 和紘, 吉本 紋

    日本鉱物科学会年会講演要旨集  2011.9 

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    Petrology and geochronology of pelitic gneisses in the Hanhohiyn Mountains, the northwestern part of Mongolia
    Hanhohiyn Mountains is located in the northwestern part of Mongolia. The mountains are mainly composed of marble, meta-quartzite and pelitic gneisses intercalating with lenticular garnet-amphibolite, garnet-orthopyroxene gneiss and so on. Pelitic gneisses are classified into garnet-sillimanite-biotite gneiss, garnet-cordierite-biotite gneiss and garnet-biotite gneiss. These gneisses indicate the peak metamorphic condition of 600-700 degree and 5.5-6 kbar accompanied by decompression. The EPMA U-Th-Pb Monazite ages concentrate between 480-510 Ma which is interpreted as the timing of the peak metamorphism.

  • 黒瀬川構造帯・青色片岩の全岩化学組成による原岩形成場とテクトニクスの推定

    吉本 紋, 小山内 康人, 中野 伸彦, 足立 達朗, 米村 和紘, 石塚 英男

    日本地質学会学術大会講演要旨  2011.9 

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    Consideration of tectonics setting to bulk chemical compositions of blueschist from the Kurosegawa tectonic zone in Japan.
    We report petrography and bulk chemical compositions of Kurosegawa blueschists from Kyushu, Shikoku and Kii peninsula, and discuss their origin. Blueschists from Yaeyama metamorphic complex will also be discussed.

  • モンゴル西部の古生代沈み込み帯および衝突帯の火成作用

    大和田 正明, 小山内 康人, 中野 伸彦, 足立 達朗, 米村 和紘, 吉本 紋, Jargalan S, Boldbaatar C, Satish-Kumar M

    日本鉱物科学会年会講演要旨集  2011.9 

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    Paleozoic subduction and collision magmatism in west Mongolia: Evidence from geochronology and geochemistry of the intrusive rocks
    The Central Asian Orogenic Belt (CAOB) resulted from amalgamation of voluminous subduction – accretionary complexes of Late Neoproterozic to Mesozoic time. Mongolia is the heartland of the CAOB and geologically divided into four complexes; continental blocks, subduction complexes, sedimentary basins and Cenozoic cover sequences. The magma activity in the southern part of Lake zone would, therefore, be related to the continental collision event. Considering geochronology and geochemical features of the intrusive rocks, the subduction and collision events occurred in the Lake zone during Cambrian time. Finally, the North China craton collided to the Siberia craton, giving rise to collision-type metamorphism and S-type granite magmatism during Permian time in the Mongolian Altay region.

  • モンゴル・アルタイ山脈に分布する高Al-Mg片麻岩類

    中野 伸彦, 小山内 康人, 足立 達朗, Satish-Kumar M, 大和田 正明, Jargalan Sereenen, Boldbaatar Chimedtseie, 米村 和紘, 吉本 紋

    日本鉱物科学会年会講演要旨集  2011.9 

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    High-Al-Mg gneisses and related rocks from the Mongolian Altay Mountains
    We report results on geochemistry, geochronology, and P-T analyses of high-Al-Mg gneisses from the Mongolian Altay Mountains.

  • Garnet, Clinopyroxene megacrysts and Garnet-bearing mantle xenoliths from the Tariat Depression, Mongolia

    OSANAI Y., NAKANO N., ADACHI T., OWADA M., SATISH-KUMAR M., JARGALAN S., BOLDBAATAR Ch., YONEMURA K., YOSHIMOTO A.

    日本鉱物科学会年会講演要旨集  2011.9 

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    Garnet, Clinopyroxene megacrysts and Garnet-bearing mantle xenoliths from the Tariat Depression, Mongolia

  • Stable isotope study of metacarbonate rocks from western Mongolia : Implications for fluid-rock interaction processes in the Central Asian Orogenic Belt

    SATISH-KUMAR M., OSANAI Y., NAKANO N., KAMEI A., JARGALAN S., BOLDBAATAR C., OWADA M., ADACHI T., YONEMURA K., YOSHIMOTO A.

    日本鉱物科学会年会講演要旨集  2011.9 

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    Stable isotope study of metacarbonate rocks from western Mongolia : Implications for fluid-rock interaction processes in the Central Asian Orogenic Belt

  • Paleozoic subduction and collision magmatism in west Mongolia : Evidence from geochronology and geochemistry of the intrusive rocks

    OWADA M., OSANAI Y., NAKANO N., ADACHI T., YONEMURA K., YOSHIMOTO A., JARGALAN S., BOLDBAATAR C., SATISH-KUMAR M.

    日本鉱物科学会年会講演要旨集  2011.9 

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    Paleozoic subduction and collision magmatism in west Mongolia : Evidence from geochronology and geochemistry of the intrusive rocks

  • Garnet, Clinopyroxene megacrysts and Garnet-bearing mantle xenoliths from the Tariat Depression, Mongolia

    OSANAI Y., NAKANO N., ADACHI T., OWADA M., SATISH-KUMAR M., JARGALAN S., BOLDBAATAR Ch., YONEMURA K., YOSHIMOTO A.

    日本鉱物科学会年会講演要旨集  2011.9 

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  • タイ西部・インタノン帯の変成・火成史解読の試み

    中野 伸彦, 足立 達朗, 小山内 康人, 河上 哲生, Charusiri Punya, 柚原 雅樹, 米村 和紘, 吉本 紋

    日本鉱物科学会年会講演要旨集  2010.9 

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    Understanding metamorphic and igneous histories of the Inthanon Belt, western Thailand
    Several metamorphic and igneous ages were obtained from the Inthanon Belt, western Thailand.

  • 中国雲南省怒江地域に分布する泥質片麻岩に認められるセクター構造を示すザクロ石の包有物

    米村 和紘, 小山内 康人, 中野 伸彦, 足立 達朗, 大和田 正明, 馬場 壮太郎

    日本鉱物科学会年会講演要旨集  2010.9 

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    Inclusions of sector zoned garnet in pelitic gneiss from the Nujiang river area, SW China

  • 黒瀬川構造帯・青色片岩の全岩化学組成による原岩形成場とテクトニクスの推定

    吉本 紋, 小山内 康人, 中野 伸彦, 足立 達朗, 米村 和紘, 石塚 英男

    日本鉱物科学会年会講演要旨集  2010.9 

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    Consideration of tectonics setting to bulk chemical compositions of blueschist from the Kurosegawa tectonic zone in Japan

  • 超高温変成岩中のジルコンの化学組成 : 東南極ナピア岩体を例に

    外田 智千, 足立 達朗

    日本鉱物科学会年会講演要旨集  2010.9 

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    Zircon chemistry in UHT metamorphic rocks : examples from Napier Complex, East Antarctica

  • 東南極ドロンイングモードランドの東・西ゴンドワナ大陸接合境界

    小山内 康人, 野木 義史, 豊島 剛志, 外田 智千, 馬場 壮太郎, 中野 伸彦, 足立 達朗, 大和田 正明

    日本鉱物科学会年会講演要旨集  2010.9 

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    Collision boundary between E- and W-Gondwana in Dronning Maud Land, East Antarctica

  • 北部九州, 脊振山地・浮嶽に産する泥質グラニュライトに含まれるモナザイトのEPMA年代測定

    足立 達朗, 小山内 康人, 中野 伸彦, 大和田 正明

    日本鉱物科学会年会講演要旨集  2010.9 

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    EPMA dating of monazite in pelitic granulite from Mt. Ukidake, Kyushu

  • モンゴルアルタイ山脈に産する層状片麻岩の全岩化学組成と温度・圧力条件

    中野 伸彦, 小山内 康人, 足立 達朗, 大和田 正明, Satish-Kumar M, Jargalan Sereenen, Boldbaatar Chimedtseie, 吉本 紋

    日本地質学会学術大会講演要旨  2010.9 

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    Geochemical signature and P-T conditions of layered gneiss complex in the Mongolian Altai Mountains: A preliminary report

  • 東南極ドロンイングモードランドの東・西ゴンドワナ大陸接合境界

    小山内 康人, 野木 義史, 豊島 剛志, 外田 智千, 馬場 壮太郎, 中野 伸彦, 足立 達朗, 大和田 正明

    日本鉱物科学会年会講演要旨集  2010.9 

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    Collision boundary between E- and W-Gondwana in Dronning Maud Land, East Antarctica
    Recently the Dronning Maud Land region including the Sør Rondane (SR) Mountains attracts attentions for their tectonic and metamorphic evolutions through the Gondwana Super continent evolution and construction. The region is considered as the main portion of the East-West Gondwana collision during the East Africa-Antarctica Orogen (EAAO: e.g. Jacobs and Thomas, 2004). We suggest that the western and the eastern blocks would be belonging to the EAAO and E-Gondwana, respectively. The final collision boundary between them would have formed during the Pa-African time of 530-550 Ma.

  • 東南極中央ドロンイングモードランドに産する塩基性片麻岩類の鉱物組み合わせと全岩化学組成

    馬場 壮太郎, 大和田 正明, 外田 智千, 足立 達朗, 中野 伸彦, 豊島 剛志, 小山内 康人

    日本地質学会学術大会講演要旨  2010.9 

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    Whole rock geochemistry and mineral assemblage of mafic gneisses in Central Dronning Maud Land, East Antarctica

  • 東南極セールロンダーネ山地に産するコランダムと石英

    外田 智千, 小山内 康人, 中野 伸彦, 足立 達朗, 豊島 剛志, 馬場 壮太郎

    日本地質学会学術大会講演要旨  2010.9 

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    Corundum and quartz in Sør Rondane Mountains, East Antarctica

  • モンゴル西部に産する変成岩類のEPMA年代測定

    足立 達朗, 小山内 康人, 中野 伸彦, 大和田 正明, Madhusoodhan Satish-Kumar, Jargalan Sereenen, Boldbaatar Chimedtseie, 米村 和紘, 吉本 紋

    日本地質学会学術大会講演要旨  2010.9 

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    A preliminary report of EPMA dating of metamorphic rocks in the western part of Mongolia.

  • 南極、昭和基地南方地域に産出するMg-Alに富むグラニュライト中の渦巻き成長した石墨

    廣井 美邦, サティッシュ・クマール M, ダンクリー D, 加藤 睦実, 足立 達朗, 外田 智千, 本吉 洋一, 白石 和行

    日本鉱物科学会年会講演要旨集  2010.4 

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    Event date: 2010.4

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    Graphite with growth spirals in Mg-Al-rich granulite from the area to the south of Syowa Station, Antarctica

  • 東南極・セールロンダーネ山地の苦鉄質グラニュライトに認められる斜方輝石・スピネルを含むシンプレクタイト

    中野 伸彦, 小山内 康人, 馬場 壮太郎, 足立 達朗, 外田 智千, 豊島 剛志

    日本鉱物科学会年会講演要旨集  2010.4 

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    Orthopyroxene- and/or spinel-bearing symplectites in mafic granulite from the Sor Rondane Mountains, East Antarctica

  • 東南極ドロンイングモードランド・セールロンダーネ山地のパンアフリカン衝突型変成作用

    小山内 康人, 豊島 剛志, 外田 智千, 馬場 壮太郎, 中野 伸彦, 足立 達朗, 大和田 正明, 白石 和行, 本吉 洋一

    日本鉱物科学会年会講演要旨集  2010.4 

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    Event date: 2010.4

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    Pan-African collision metamorphism in the Sor Rondane Mountains, Eastern Dronning Maud Land, East Antarctica

  • 東南極セールロンダーネ山地に産する優白質岩脈中のモナザイトの組成変化

    外田 智千, 足立 達朗, 小山内 康人, 中野 伸彦, 豊島 剛志, 馬場 壮太郎

    日本鉱物科学会年会講演要旨集  2010.4 

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    Compositional variation of monazite in leucocratic vein from Sor Rondane Mountains, East Antarctica

  • 東南極ドロンニングモードランド・セールロンダーネ山地の変成作用再考

    小山内 康人, 土屋 範芳, 大和田 正明, 豊島 剛志, 白石 和行, 足立 達朗

    日本鉱物科学会年会講演要旨集  2007.9 

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    Metamorphic evolution of Sor Rondane Mountains, Doronning Maud Land, East ANtarctica: reconsideration
    東南極セールロンダーネ山地に広域的に分布する苦鉄質変成岩類の化学組成により原岩構成に基づき帯区分され,NW-SE方向に帯状配列するA~D帯とENE-WSW方向のE~G帯である. A~D帯の最高変成条件は,約8kbar,900℃が見積もられ,メソパーサイト,転移ピジョン輝石などの超高温変成作用の痕跡もみとめられる.これらの中で,昇温期変成作用の痕跡を残すザクロ石中の残留藍晶石・十字石はA~C帯のみに見出され,後退変成過程では珪線石安定領域から紅柱石の安定な条件に至る.D帯では後退変成作用時に2次的生成された藍晶石−黒雲母−石英共生がみとめられる.一方E~G帯では緑色片岩相から珪線石や十字石−石英共生が安定な角閃岩相の変成条件しか見出されず,後退変成過程で紅柱石が生成されている.これらの3つの異なる変成過程は, SRS形成時の大陸衝突にともなう衝突型変成作用の進行過程で形成されたことが考えられる.

  • 東南極セール・ロンダーネ山地メーニパに産する泥質変成岩の柘榴石,チタン石および燐灰石ウラン–鉛年代系に基づく三種年代分析

    仁木 創太, 河上 哲生, 足立 達朗, 宇野 正起, 東野 文子, 平田 岳史

    日本地球惑星科学連合2022年大会  2022.5 

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  • Laser Raman study on microdimond in UHP marbles from the Kokchetav Massif International conference

    Tatsuro Adachi, Yoshihide Ogasawara

    American Geophysical Union Fall Meeting  2004.12 

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    Venue:San Francisco   Country:United States  

  • Occurrence of microdiamond in UHP calcite marble from the Kokchetav Massif International conference

    Yoshihide Ogasawara, Tatsuro Adachi, Kazumasa Aoki

    American Geophysical Union Fall Meeting  2004.12 

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    Venue:San Francisco   Country:United States  

  • Petrology of UHP calcite marble from the Kokchetav Massif International conference

    Kazumasa Aoki, Tatsuro Adachi, Minoru Kikuchi, Yoshihide Ogasawara

    American Geophysical Union Fall Meeting  2004.12 

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    Venue:San Francisco   Country:United States  

  • 東南極・セールロンダーネ山地北東部に産出するザクロ石-珪線石-黒雲母片麻岩に見られる離溶組織

    足立 達朗

    第26回極域地学シンポジウム  2006.10 

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    Venue:国立極地研究所   Country:Japan  

  • 吉見丘陵に産する塩基性~超塩基性変成岩類に見られるルチル離溶組織と変成履歴

    足立 達朗, 岩崎 一郎

    日本地球惑星科学連合2007年大会  2007.5 

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    Venue:幕張   Country:Japan  

  • 吉見丘陵に産する変成岩類のU-Pb zircon SHRIMP年代

    岩崎 一郎, 足立 達朗, Daniel J. Dunkley, 外田 智千

    日本地球惑星科学連合2007年大会  2007.5 

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    Venue:幕張   Country:Japan  

  • 関東山地北東縁部・吉見変成岩の形成史

    足立 達朗, 岩崎 一郎, Daniel J. Dunkley, 外田 智千

    日本地質学会第114年学術大会  2007.9 

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    Venue:北海道大学   Country:Japan  

  • P-T-t path of the Yoshimi Metamorphic Rocks from the Northeastern Part of the Kanto Mountains, Central Japan International conference

    Tatsuro Adachi, Ichiro Iwasaki, Daniel J. Dunkley, Tomokazu Hokada

    4th International Symposium on Gondwana to Asia  2007.11 

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    Venue:Fukuoka   Country:Japan  

  • カンブリア紀を源岩とする日立変成岩の地史:SHRIMP年代測定による結果

    田切 美智雄, 森本 麻希, 横須賀 歩, 望月 涼子, Daniel J. Dunkley, 足立 達朗

    日本地質学会第115年学術大会  2008.9 

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    Venue:秋田大学   Country:Japan  

  • 東南極,セールロンダーネ山地ブラトニーパネ地域における変成作用

    馬場 壮太郎, 豊島 剛志, 小山内 康人, 中野 伸彦, 足立 達朗, 外田 智千

    日本地質学会第115年学術大会  2008.9 

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    Venue:秋田大学   Country:Japan  

  • アウストカンパーネ地域南部に分布する炭酸塩岩の成因

    小山内 康人, 中野 伸彦, 外田 智千, 豊島 剛志, 馬場 壮太郎, 足立 達朗

    日本地質学会第115年学術大会  2008.9 

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    Venue:秋田大学   Country:Japan  

  • 東南極セールロンダーネ山地中央部に産する高度変成岩類における複変成イベント分離の試み

    外田 智千, 足立 達朗, 中野 伸彦, 小山内 康人, 馬場 壮太郎, 豊島 剛志

    日本地質学会第115年学術大会  2008.9 

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    Venue:秋田大学   Country:Japan  

  • 東南極セールロンダーネ山地中央部に産する高度変成岩類における複変成イベント分離の試み

    外田 智千, 足立 達朗, 中野 伸彦, 小山内 康人, 馬場 壮太郎, 豊島 剛志

    日本地質学会第115年学術大会  2008.9 

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    Venue:秋田大学   Country:Japan  

  • 東南極ドロンニングモードランド東部のセールロンダーネ山地中央部における大構造と変形作用

    豊島 剛志, 小山内 康人, 馬場 壮太郎, 外田 智千, 中野 伸彦, 足立 達朗

    日本地質学会第115年学術大会  2008.9 

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    Venue:秋田大学   Country:Japan  

  • 東南極ドロンニングモードランド・セールロンダーネ山地に分布する変成超苦鉄質岩複合岩体の変成作用

    小山内 康人, 豊島 剛志, 馬場 壮太郎, 外田 智千, 中野 伸彦, 足立 達朗

    日本地質学会第115年学術大会  2008.9 

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    Venue:秋田大学   Country:Japan  

  • 東南極セールロンダーネ山地・ブラットニーパネに産する珪長質斜方輝石片麻岩と珪長質角閃石黒雲母片麻岩の成因的関係

    足立 達朗, 小山内 康人, 豊島 剛志, 馬場 壮太郎, 外田 智千, 中野 伸彦

    日本地質学会第115年学術大会  2008.9 

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    Venue:秋田大学   Country:Japan  

  • Pan-African Collision Metamorphism in the Sør Rondane Mountains, Eastern Dronning Maud Land, East Antarctica International conference

    Yasuhito Osanai, Kazuyuki Shiraishi, Tsuyoshi Toyoshima, Masaaki Owada, Sotaro Baba, Tomokazu Hokada, Nobuhiko Nakano, Yoichi Motoyoshi, Tatsuro Adachi

    The Gondwana 13  2008.9 

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    Venue:Dali   Country:China  

  • 東南極・セールロンダーネ山地アウストカンパーネ地域に分布する炭酸塩岩および関連岩石の記載岩石学的および岩石化学的特徴

    中野 伸彦, 小山内 康人, 外田 智千, 豊島 剛志, 馬場 壮太郎, 足立 達朗, 角縁 進

    第28回極域地学シンポジウム  2008.10 

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    Venue:国立極地研究所   Country:Japan  

  • Pan-African collision metamorphism in the Sør Rondane Mountains, Eastern Dronning Maud Land, East Antarctica

    Yasuhito Osanai, Tsuyoshi Toyoshima, Sotaro Baba, Tomokazu Hokada, Nobuhiko Nakano, Tatsuro Adachi, Masaaki Owada, Kazuyuki Shiraishi, Yoichi Motoyoshi

    第28回極域地学シンポジウム  2008.10 

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    Venue:国立極地研究所   Country:Japan  

  • 東南極セールロンダーネ山地・ブラットニーパネに産する珪長質片麻岩に含まれる石英中のTi含有量の評価

    足立 達朗, 外田 智千, 小山内 康人, 豊島 剛志, 馬場 壮太郎, 中野 伸彦

    第28回極域地学シンポジウム  2008.10 

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    Venue:国立極地研究所   Country:Japan  

  • Long-lived high-temperature metamorphism followed by clockwise P-T path from Menipa, Sør Rondane Mountains, East Antarctica

    河上 哲生, 仁木 創太, 鈴木 将晏, 坂田 周平, 足立 達朗, 東野 文子, 宇野 正起, 平田 岳史

    日本地球惑星科学連合2022年大会  2022.5 

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  • Two distinct timings of metamorphism detected from Menipa, Sør Rondane Mountains, East Antarctica.

    足立 達朗, 河上 哲生, 宇野 正起, 東野 文子

    日本地球惑星科学連合2022年大会  2022.5 

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  • 地殻深部でのマグマ・水圧破砕に伴う応力状態の繰り返し逆転(東南極セール・ロンダー山地)

    宇野 正起, 河上 哲生, 足立 達朗, 東野 文子, 土屋 範芳

    日本地球惑星科学連合2022年大会  2022.5 

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  • タイ西部・インタノン帯の変成・火成史解読の試み

    中野 伸彦, 足立 達朗, 小山内 康人, 河上 哲生, CHARUSIRI P, 柚原 雅樹, 米村 和紘, 吉本 紋

    日本鉱物科学会年会講演要旨集  2010.9 

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    Understanding metamorphic and igneous histories of the Inthanon Belt, western Thailand

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MISC

  • 瑞穂遺跡第11次出土甕棺および粘土の化学組成の比較

    @足立達朗,@田尻義了

    大野城市文化財調査報告書 第211集 瑞穂遺跡6   2024.3

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  • HZK1905および1805調査地点出土の石積み遺構構築石材の岩石学的分析

    @足立達朗

    九州大学埋蔵文化財調査室 第7集   2021.12

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  • 九州大学筑紫キャンパス遺跡から出土した弥生時代石斧資料の地球科学的分析

    足立達朗, 田尻義了, 中野伸彦, 小山内康人

    九州大学筑紫キャンパス遺跡群(御共田遺跡)総括報告書1   2020.5

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  • 箱崎遺跡出土碇石の岩石学的分析

    足立達朗

    九州大学箱崎キャンパス発掘調査報告3 箱崎遺跡   2020.5

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  • 中山平次郎収集の元寇防塁構築石材の岩石学的分析

    足立達朗

    九州大学箱崎キャンパス発掘調査報告3 箱崎遺跡   2020.5

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  • 玉名市・大原遺跡および塚原遺跡から出土した「今山系」石斧の地球科学的分析

    足立達朗, 田尻義了, 中村安宏

    玉名市文化財調査報告 第44集 大原遺跡   2019.5

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  • The Strontium analysis on the human skeletal remains from the Emeelt Tolgoi Site and Bor Ovoo site in Bayanhongor, Mongolia

    YONEMOTO, S., Adachi, T., Funahashi, K., Nakano, N., Osanai, Y.

    2018.12

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  • 井出ヶ浦窯跡群出土須恵器の胎土分析について

    足立 達朗, 田尻 義了, 中野 伸彦, 小山内 康人

    飯塚市文化財調査報告書第52集   2018.1

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  • 石積み遺構構築石材の岩石学的分析

    足立 達朗, 田尻 義了

    九州大学箱崎キャンパス発掘調査報告1 箱崎遺跡   2017.12

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  • 乙金地区遺跡群出土須恵器の胎土分析について

    足立 達朗, 田尻 義了, 中野 伸彦, 小山内 康人

    乙金第二土地区画整理事業地内埋蔵文化財調査報告書22 乙金地区遺跡群22   2017.10

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  • 金井東裏遺跡出土人骨.

    田中 良之, 米元 史織, 舟橋 京子, 足立 達朗, 岩橋由季, 高椋 浩史, 福永 将大, 藤井 恵美, 中野 伸彦, 小山内 康人

    金井東裏遺跡 甲着装人骨等詳細調査報告書   2016.12

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  • 歯牙のストロンチウム同位体比分析

    米元 史織, 足立 達朗, 中野 伸彦, 舟橋 京子, 田尻 義了, 小山内 康人, 田中 良之

    佐賀市埋蔵文化財調査報告書100:東名遺跡群Ⅳ   2016.12

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  • The Strontium analysis on the human skeletal remains of the Bronze Age from the Tevsh sites in the southern Khangai, Mongol.

    SHIORI YONEMOTO, Tatsuro Adachi, Nobuhiko Nakano, Kyoko Funahashi, Tanaka Yoshiyuki, Yasuhito Osanai

    Excavations at Daram and Tevsh Sites A report on Joint Mongolian-Japanese Excavations in Outer Mongolia   2016.12

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  • Substance identification of the beads at the stone-slab grave from Daram Site, Khentii province, Mongolia.

    Yasuhito Osanai, Tatsuro Adachi, Kazuhiro Yonemura, Kazuo MIYAMOTO

    Excavations at Daram and Tevsh Sites A report on Joint Mongolian-Japanese Excavations in Outer Mongolia   2016.12

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  • 朝鮮半島系の特徴を持つ土師器質土器について

    石田 智子, 足立 達朗, 田尻 義了, 小山内 康人, 小澤 佳憲

    東九州自動車道関係埋蔵文化財調査報告27 塔田琵琶田遺跡第6次   2016.3

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  • 古野遺跡第2次調査出土近世人骨について

    中井 歩, 福永 将大, 米元 史織, 岩橋 由季, 谷澤 亜里, 早川 和賀子, 藤井 恵美, 舟橋 京子, 足立 達朗, 中野 伸彦, 小山内 康人, 田中 良之

    乙金区画整理地内埋蔵文化財調査報告書 乙金遺跡群   2015.12

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  • 岸田遺跡第1次調査出土の「赤色岩石」について

    足立 達朗, 田尻 義了, 中野 伸彦, 小山内 康人, 松尾奈緒子

    長峰地区土地改良事業に伴う埋蔵文化財調査報告書6 岸田遺跡1   2015.3

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  • 元岡・桑原遺跡群第58次調査出土の黒曜石について

    足立 達朗, 田尻 義了, 中野 伸彦, 小山内 康人, 大森麻衣子

    九州大学統合移転用地内埋蔵文化財発掘調査報告書 元岡・桑原遺跡群26   2015.3

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  • カラカミ遺跡・原の辻遺跡出土弥生土器の胎土分析

    石田 智子, 米村 和紘, 足立 達朗, 中野 伸彦, 小山内 康人, 田中 良之

    2013.3

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  • カラカミ遺跡出土のいわゆる「鉄鉱石」

    小山内 康人, 足立 達朗, 石田 智子

    2013.3

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  • 弥生土器および粘土の胎土分析

    石田 智子, 米村 和紘, 足立 達朗, 中野 伸彦, 小山内 康人, 田中 良之

    2012.3

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  • 那珂川・御笠川流域における弥生土器および粘土の胎土分析

    石田 智子, 米村 和紘, 足立 達朗, 中野 伸彦, 小山内 康人, 田中 良之

    2012.3

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  • 東ドロンイングモードランド,セール・ロンダーネ山地 地学調査隊報告2007-2008 (JARE-49)

    小山内 康人, 豊島 剛志, 馬場 壮太郎, 外田 智千, 中野 伸彦, 阿部 幹雄, 足立 達朗

    南極資料   2008.7

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  • 東南極セール・ロンダーネ山地,ブッラットニーパネの崖錐に含まれる塩基性グラニュライトの変成組織

    馬場, 壮太郎, 上里, 萌子, 外田, 智千, 足立, 達朗, 小山内, 康人, 中野, 伸彦, 豊島, 剛志

    琉球大学教育学部紀要=Bulletin of Faculty of Education University of the Ryukyus   2018.2

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    Metamorphic texture in mafic granulites collected from talus in the Brattnipene, Sør Rondane Mountains, East Antarctica
    Retrograde metamorphic P-T paths of garnet—pyroxene—bearing mafic gneisses from the Brattnipene nunataks in Sør Rondane Mountains, East Antarctica, were examined. The majority of samples preserve irregular—shaped garnet coexisting with clinopyroxene, quartz and plagioclase that developed around magnetite, ilmenite and orthopyroxene. The garnet contains fine—grained worm—like quartz inclusions. The occurrences are common in other mafic gneisses in northern Brattnipene and are interpreted as isobaric cooling textures. In another sample, garnet porphyroblasts have been replaced by symplectites of fine orthopyroxene and plagioclase. The mineral textures indicate near isothermal decompression. Retrograde P-T conditions estimated from rock containing orthopyroxene—plagioclase symplectite are within the range of 6.5 ~ 7.2 kbar, 700 ~ 780℃. Previous reports have revealed that metamorphism around Brattnipene is characterized by counterclockwise P-T path involving near—isobaric cooling. Our new finding suggests that metamorphic rocks formed by isothermal decompression should be present at higher altitude in the Brattnipene or relevant nunataks.

  • ジルコンの迅速分離手法とU-Pb年代測定への適用例

    北野 一平, 小山内 康人, 中野 伸彦, 足立 達朗, 吉本 紋

    比較社会文化 : 九州大学大学院比較社会文化学府紀要   2014.3

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    Rapid techniques for zircon separation and the application for U-Pb dating
    本稿では、ジルコンの迅速分離手法とLA-ICP-MSを用いたU-Pb年代測定の実例を報告する。ジルコンは岩石中には副成分鉱物として産するため、その量的な問題から多くの場合、試料からの分離が必要となる。ジルコンの分離には、現在においても重液を用いた分離法が一般的である。しかしながら、重液の使用に対する非効率性や人体に及ぼす危険性、高コストが指摘されてきた。そこで、小論ではこれらの問題を解決するために、重液を用いないジルコンの迅速分離手法を考案した。本手法では、粉末試料をビーカーや時計皿による水簸および椀掛けをすることでジルコンを30分以内に抽出することが可能であり、重液分離と比べると極めて迅速で効率よく、低コストで安全な手法といえる。ジルコンはU-Pb年代測定のほかに、包有物解析や化学組成から様々な地質事変を制約できる鉱物である。本手法は膨大なジルコン分析に対応した地質学的研究に非常に有用な手法であるとともに考古学などの他分野への応用も期待される。This report provides the rapid separation techniques of zircons and an example of U-Pb dating of the zircons using LA-ICP-MS. Zircons have been commonly separated from a sample using heavy liquid. However, previous reports have pointed out the inefficiency, harmful effect and high cost of the heavy liquid method. In this report, we provide the rapid techniques for zircon separation without using heavy liquid, and procedures just before zircon analysis, including separation, hand picking, mounting, and observation under cathodoluminescence image. In the method introduced here, the zircons can be separated only for 30 minutes per one sample just by panning with a beaker and watch glass. Therefore, this method is more efficient, quicker, lower cost and safer compared with heavy liquid separation.

    DOI: 10.15017/1456056

  • マダガスカル共和国中央東部に産する変成岩類の年代学的特徴 : 地殻進化過程の制約

    市來 孝志, 石川 正弘, 小山内 康人, 中野 伸彦, 足立 達朗

    日本鉱物科学会年会講演要旨集   2013.9

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    Geochronology of the metamorphic rocks from east-central Madagascar : constraints on crustal evolution process

  • モンゴル・アルタイ山脈の変成作用とテクトニクス

    中野 伸彦, 小山内 康人, 足立 達朗, SATISH-KUMAR M, 大和田 正明, JARGALAN S, BOLDBAATAR Ch, 吉本 紋, SYERYEKHAN K

    日本鉱物科学会年会講演要旨集   2013.9

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    Metamorphic evolution and tectonics of the Altai Mountains, Mongolia

  • 変成鉱物に見られる内部包有物の多深度解析

    米村 和紘, 小山内 康人, 足立 達朗, 中野 伸彦, 大和田 正明, 馬場 壮太郎

    比較社会文化 : 九州大学大学院比較社会文化学府紀要   2013.3

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    Multi-depth analysis of inclusions in metamorphic minerals
    変成鉱物中の細粒包有物は, 多くの場合包有する変成鉱物の成長時に取り込まれることによって形成される. したがって, 細粒包有物の同定・解析は, 変成作用の過程を明らかにする上で有用である. しかし, これまで鏡下観察や電子プローブマイクロアナライザーによる表面分析では, 細粒包有物は充分に同定できない場合があった. 本稿では, この問題を克服するために, 九州大学大学院比較社会文化研究院地球変動講座に設置されているデジタルマイクロスコープと顕微ラマン分光分析装置を用い, 多数の微細包有物を解析する多深度解析手法を確立した. この手法では, 1μm間隔で撮影した鏡下写真とそれらの合成画像から, 包有物の三次元位置, 形状, 粒径, 色を迅速に明らかにすることができる. また, 形態による分類と包有された位置を元に, 顕微レーザーラマン分光分析装置を用いてすべての種類の包有物が同定可能である. 本手法は, 岩石学的研究はもとより, 透明物質中の内部包有物や不純物を扱う他分野にも応用できるものである.Fine-grained inclusions in metamorphic minerals are generally regarded to be trapped during the growth of the host metamorphic minerals. It suggests that identification and analyses of the each fine-grained inclusion are quite important in understanding each metamorphic evolution. However, identification and confirmation of the each inclusion phase are often difficult using conventional methods such as optical microscope observation and surface analysis by an electron microprobe analyzer. In this paper, we introduce a new analytical technique, named multi-depth analyses, to rapidly identify very fine-grained inclusions in metamorphic minerals using digital microscope and laser Raman microspectroscopy installed at Department of Environmental Changes, Faculty of Social and Cultural Studies, Kyushu University. Using this technique, three-dimensional position, shape, grain size and colors of fine-grained inclusions are distinguished easily by the multi-depth composite image in 1μm depth interval. The minerals or fluid inclusions are identified by the obtained Raman spectra even if the inclusions are quite fine-grained (≃1μm) or are situated in deeper position in thin section. This technique should be useful not only for petrological studies, but also for the other studies, e.g., archaeology, using inclusions or impurities in non-opaque matrix.

    DOI: 10.15017/26212

  • Late Proterozoic juvenile arc metatonalite and adakitic intrusions in the Sor Rondane Mountains, East Antarctica

    KAMEI A, HORIE K, OWADA M, YUHARA M, NAKANO N, OSANAI Y, ADACHI T, HARA Y, TERAO M, TEUCHI S, SHIMURA T, TSUKADA K, HOKADA T, IWATA C, SHIRAISHI K, ISHIZUKA H, TAKAHASHI Y

    日本鉱物科学会年会講演要旨集   2012.9

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    Late Proterozoic juvenile arc metatonalite and adakitic intrusions in the Sor Rondane Mountains, East Antarctica

  • 黒瀬川帯に産する青色片岩に伴われる変成岩類のジルコンU-Pb年代

    吉本 紋, 小山内 康人, 中野 伸彦, 足立 達朗, 米村 和紘, 石塚 英男

    日本鉱物科学会年会講演要旨集   2012.9

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    U-Pb zircon ages of metamorphic rocks associated with blueschists from Kurosegawa Tectonic Belt

  • 北上山地の前期白亜紀アダカイト質花崗岩体のジルコンU-Pb年代と岩石化学的特徴

    土谷 信高, 武田 朋代, 谷 健一郎, 足立 達朗, 中野 伸彦, 小山内 康人

    日本鉱物科学会年会講演要旨集   2012.9

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    Zircon U-Pb geochoronology and petrochemistry of Early Cretaceous adakitic granites in the Kitakmai Mountains, Japan

  • モンゴル・アルタイ山脈に分布する高Al片麻岩類の形成過程とテクトニクス

    中野 伸彦, 小山内 康人, 足立 達朗, SATISH-KUMAR M, 大和田 正明, JARGALAN S, BOLDBAATAR Ch, 吉本 紋, 米村 和紘

    日本鉱物科学会年会講演要旨集   2012.9

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    Evolution of high-Al gneisses from the Mongolian Altay Mountains

    DOI: 10.14824/jakoka.2011.0.99.0

  • シャンタイ地塊/シブマス地塊の大陸衝突境界

    米村 和紘, 小山内 康人, 中野 伸彦, 足立 達朗, ZAW Tun Naing, CHARUSIRI Punya

    日本鉱物科学会年会講演要旨集   2012.9

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    Continental collision boundary between Shanthai/Sibumasu blocks

  • Paleozoic igneous activities in south-central Mongolia

    OWADA M, OSANAI Y, NAKANO N, ADACHI T, YONEMURA K, YOSHIMOTO A, JARGALAN S, BOLDBAATAR C, SAITSH-KUMAR M

    日本鉱物科学会年会講演要旨集   2012.9

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    Paleozoic igneous activities in south-central Mongolia

  • Metamorphic Evolution of High-Pressure Metamorphic Rocks from Bantimala and Barru Complex in South Sulawesi, Indonesia

    SETIAWAN Nugroho I, OSANAI Y, NAKANO N, ADACHI T, YONEMURA K, YOSHIMOTO A

    日本鉱物科学会年会講演要旨集   2012.9

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    Metamorphic Evolution of High-Pressure Metamorphic Rocks from Bantimala and Barru Complex in South Sulawesi, Indonesia

  • 蛍光X線分析装置・レーザー溶出型誘導結合プラズマ質量分析計を用いた低希釈率ガラスビートの主成分・微量・希土類元素の迅速定量分析

    中野 伸彦, 小山内 康人, 足立 達朗, 米村 和紘, 吉本 紋, Setiawan Nugroho

    比較社会文化 : 九州大学大学院比較社会文化学府紀要   2012.3

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    Rapid techniques for quantitative determination of major, trace and rare earth elements in low dilution glass bead using XRF and LA-ICP-MS
    This report provides analytical techniques for major, trace and rare earth elements by X-ray fluorescence spectrometry (XRF) and laser ablation-inductively coupled plasma-mass spectrometry (LAICP-MS) at Department of Environmental Changes, Faculty of Social and Cultural Studies, Kyushu University. Totally 42 elements can be measured from low dilution glass bead (sample:flux ratio of 1:2). 23 elements (SiO_2, TiO_2, Al_2O_3, total Fe_2O_3, MnO, MgO, CaO, Na_2O, K_2O, P_2O_5, V, Cr, Co, Ni, Cu, Zn, Ga, Rb, Sr, Y, Zr, Nb and Ba) of each sample were measured in 80 minutes by XRF. The other 19 elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, Pb, Th and U) were later measured in 5 minutes by LA-ICP-MS. Synthetic samples prepared from pure chemical reagents as well as standard samples provided by Geological Society of Japan (GSJ) (20 samples) were used to define individual calibration lines for XRF analysis, and SRM612 glass standard issued by the National Institute of Standard and Technology (NIST) was used as the calibration standard for LA-ICP-MS analysis. Analytical results of the GSJ standard samples appear an agreement with their recommended values mostly within 15% differences. The system can provide abundances of the most elements in rocks, and requires only 1.8g of sample powder, hence it should be very useful not only for geological but also for archeological samples.

  • Garnet, Clinopyroxene megacrysts and Garnet-bearing mantle xenoliths from the Tariat Depression, Mongolia

    OSANAI Y, NAKANO N, ADACHI T, OWADA M, SATISH-KUMAR M, JARGALAN S, BOLDBAATAR Ch, YONEMURA K, YOSHIMOTO A

    日本鉱物科学会年会講演要旨集   2011.9

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    Garnet, Clinopyroxene megacrysts and Garnet-bearing mantle xenoliths from the Tariat Depression, Mongolia

    DOI: 10.14824/jakoka.2011.0.100.0

  • モンゴル・タリアットに産するザクロ石,単斜輝石巨晶と含ザクロ石マントルゼノリス

    小山内 康人, 中野 伸彦, 足立 達朗, 大和田 正明, Satish-Kumar M, Jargalan Sereenen, Boldbaatar Chidm, 米村 和紘, 吉本 紋

    日本鉱物科学会年会講演要旨集   2011.9

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    Petrology and geochronology of pelitic gneisses in the Hanhohiyn Mountains, the northwestern part of Mongolia
    Garnet and clinopyroxene megacrysts and spinel-garnet-bearing websterite from Quarternary alkali basalt erupted in the Tariat Depression of central Mongolia will be presented.

    DOI: 10.14824/jakoka.2011.0.100.0

  • Stable isotope study of metacarbonate rocks from western Mongolia : Implications for fluid-rock interaction processes in the Central Asian Orogenic Belt

    SATISH-KUMAR M, OSANAI Y, NAKANO N, KAMEI A, JARGALAN S, BOLDBAATAR C, OWADA M, ADACHI T, YONEMURA K, YOSHIMOTO A

    日本鉱物科学会年会講演要旨集   2011.9

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    Stable isotope study of metacarbonate rocks from western Mongolia : Implications for fluid-rock interaction processes in the Central Asian Orogenic Belt

    DOI: 10.14824/jakoka.2011.0.101.0

  • High-Al-Mg gneisses and related rocks from the Mongolian Altay Mountains

    NAKANO N, OSANAI Y, ADACHI T, SATISH-KUMAR M, OWADA M, JARGALAN S, BOLDBAATAR Ch, YONEMURA K, YOSHIMOTO A

    日本鉱物科学会年会講演要旨集   2011.9

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    High-Al-Mg gneisses and related rocks from the Mongolian Altay Mountains

    DOI: 10.14824/jakoka.2011.0.99.0

  • タイ西部・インタノン帯の変成・火成史解読の試み

    中野 伸彦, 足立 達朗, 小山内 康人, 河上 哲生, CHARUSIRI P, 柚原 雅樹, 米村 和紘, 吉本 紋

    日本鉱物科学会年会講演要旨集   2010.9

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    Understanding metamorphic and igneous histories of the Inthanon Belt, western Thailand

    DOI: 10.14824/jakoka.2010.0.202.0

  • 黒瀬川構造帯・青色片岩の全岩化学組成による原岩形成場とテクトニクスの推定

    吉本 紋, 小山内 康人, 中野 伸彦, 足立 達朗, 米村 和紘, 石塚 英男

    日本鉱物科学会年会講演要旨集   2010.9

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    Consideration of tectonics setting to bulk chemical compositions of blueschist from the Kurosegawa tectonic zone in Japan

    DOI: 10.14824/jakoka.2010.0.173.0

  • 超高温変成岩中のジルコンの化学組成 : 東南極ナピア岩体を例に

    外田 智千, 足立 達朗

    日本鉱物科学会年会講演要旨集   2010.9

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    Zircon chemistry in UHT metamorphic rocks : examples from Napier Complex, East Antarctica

    DOI: 10.14824/jakoka.2010.0.207.0

  • 東南極ドロンイングモードランドの東・西ゴンドワナ大陸接合境界

    小山内 康人, 野木 義史, 豊島 剛志, 外田 智千, 馬場 壮太郎, 中野 伸彦, 足立 達朗, 大和田 正明

    日本鉱物科学会年会講演要旨集   2010.9

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    Collision boundary between E- and W-Gondwana in Dronning Maud Land, East Antarctica

    DOI: 10.14824/jakoka.2010.0.181.0

  • 北部九州, 脊振山地・浮嶽に産する泥質グラニュライトに含まれるモナザイトのEPMA年代測定

    足立 達朗, 小山内 康人, 中野 伸彦, 大和田 正明

    日本鉱物科学会年会講演要旨集   2010.9

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    EPMA dating of monazite in pelitic granulite from Mt. Ukidake, Kyushu

    DOI: 10.14824/jakoka.2010.0.221.0

  • 中国雲南省怒江地域に分布する泥質片麻岩に認められるセクター構造を示すザクロ石の包有物

    米村 和紘, 小山内 康人, 中野 伸彦, 足立 達朗, 大和田 正明, 馬場 壮太郎

    日本鉱物科学会年会講演要旨集   2010.9

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    Inclusions of sector zoned garnet in pelitic gneiss from the Nujiang river area, SW China

    DOI: 10.14824/jakoka.2010.0.203.0

  • 南極、昭和基地南方地域に産出するMg-Alに富むグラニュライト中の渦巻き成長した石墨

    廣井 美邦, サティッシュ・クマール M, ダンクリー D, 加藤 睦実, 足立 達朗, 外田 智千, 本吉 洋一, 白石 和行

    日本鉱物科学会年会講演要旨集   2010.4

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    Graphite with growth spirals in Mg-Al-rich granulite from the area to the south of Syowa Station, Antarctica

    DOI: 10.14824/jakoka.2009.0.15.0

  • 東南極・セールロンダーネ山地の苦鉄質グラニュライトに認められる斜方輝石・スピネルを含むシンプレクタイト

    中野 伸彦, 小山内 康人, 馬場 壮太郎, 足立 達朗, 外田 智千, 豊島 剛志

    日本鉱物科学会年会講演要旨集   2010.4

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    Orthopyroxene- and/or spinel-bearing symplectites in mafic granulite from the Sor Rondane Mountains, East Antarctica

    DOI: 10.14824/jakoka.2009.0.89.0

  • 東南極ドロンイングモードランド・セールロンダーネ山地のパンアフリカン衝突型変成作用

    小山内 康人, 豊島 剛志, 外田 智千, 馬場 壮太郎, 中野 伸彦, 足立 達朗, 大和田 正明, 白石 和行, 本吉 洋一

    日本鉱物科学会年会講演要旨集   2010.4

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    Pan-African collision metamorphism in the Sor Rondane Mountains, Eastern Dronning Maud Land, East Antarctica

    DOI: 10.14824/jakoka.2009.0.43.0

  • 東南極セールロンダーネ山地に産する優白質岩脈中のモナザイトの組成変化

    外田 智千, 足立 達朗, 小山内 康人, 中野 伸彦, 豊島 剛志, 馬場 壮太郎

    日本鉱物科学会年会講演要旨集   2010.4

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    Compositional variation of monazite in leucocratic vein from Sor Rondane Mountains, East Antarctica

    DOI: 10.14824/jakoka.2009.0.57.0

  • O-203 東南極ドロンイングモードランド・セールロンダーネ山地に分布する変成超苦鉄質岩複合岩体の変成作用(24.深成岩及び変成岩,口頭発表,一般講演)

    小山内 康人, 豊島 剛志, 馬場 壮太郎, 外田 智千, 中野 伸彦, 足立 達朗

    日本地質学会学術大会講演要旨   2008.9

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    O-203 Metamorphic evolution of Ultramafic Complex from the Sor Rondane Mountains, Dronning Maud Land, East Antarctica

    DOI: 10.14863/geosocabst.2008.0.260.0

  • O-204 東南極ドロンイングモードランド東部のセールロンダーネ山地中央部における大構造と変形作用(24.深成岩及び変成岩,口頭発表,一般講演)

    豊島 剛志, 小山内 康人, 馬場 壮太郎, 外田 智千, 中野 伸彦, 足立 達朗

    日本地質学会学術大会講演要旨   2008.9

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    O-204 Macroscopic geological structures and deformation in the central part of the Sor Rondane Mountains, eastern Dronning Maud Land, East Antarctica

    DOI: 10.14863/geosocabst.2008.0.261.0

  • O-205 東南極セールロンダーネ山地中央部に産する高度変成岩類における複変成イベント分離の試み(24.深成岩及び変成岩,口頭発表,一般講演)

    外田 智千, 足立 達朗, 中野 伸彦, 小山内 康人, 豊島 剛志, 馬場 壮太郎

    日本地質学会学術大会講演要旨   2008.9

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    O-205 Unraveling poly-metamorphic records in the high-grade metamorphic rocks from central Sor Rondane Mountains, East Antarctica

    DOI: 10.14863/geosocabst.2008.0.262.0

  • O-208 東南極セールロンダーネ山地・ブラットニーパネに産する珪長質斜方輝石片麻岩と珪長質角閃石黒雲母片麻岩との成因的関係(24.深成岩及び変成岩,口頭発表,一般講演)

    足立 達朗, 小山内 康人, 豊島 剛志, 馬場 壮太郎, 外田 智千, 中野 伸彦

    日本地質学会学術大会講演要旨   2008.9

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    O-208 Relationship between orthopyroxene felsic gneiss and hornblende-biotite felsic gneiss in the Brattnipene area, Sor Rondane Mountains, East Antarctica

    DOI: 10.14863/geosocabst.2008.0.265.0

  • O-207 東南極,セールロンダーネ山地ブラトニーパネ地域における変成作用(24.深成岩及び変成岩,口頭発表,一般講演)

    馬場 壮太郎, 豊島 剛志, 小山内 康人, 中野 伸彦, 足立 達朗, 外田 智千

    日本地質学会学術大会講演要旨   2008.9

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    O-207 Metamorphism of the Brattnipene region, Sor Rondane Mountains, East Antarctica

    DOI: 10.14863/geosocabst.2008.0.264.0

  • O-206 東南極・セールロンダーネ山地アウストカンパーネ地域南部に分布する炭酸塩岩の成因(24.深成岩及び変成岩,口頭発表,一般講演)

    中野 伸彦, 小山内 康人, 外田 智千, 豊島 剛志, 馬場 壮太郎, 足立 達朗

    日本地質学会学術大会講演要旨   2008.9

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    O-206 Origin of carbonates from the southern Austkampane in the Sor Rondane Mountains, East Antarctica

    DOI: 10.14863/geosocabst.2008.0.263.0

  • P-15 関東山地北東縁部・吉見変成岩の形成史(4.東南アジアの地殻形成史とテクトニクス:地質学・岩石学からのアプローチ,ポスター発表,一般講演)

    足立 達朗, 岩崎 一郎, Dunkley Daniel J, 外田 智千

    日本地質学会学術大会講演要旨   2007.9

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    P-15 Metamorphic history of the Yoshimi Metamorphic Rocks

    DOI: 10.14863/geosocabst.2007.0.81.0

  • 東南極ドロンニングモードランド・セールロンダーネ山地の変成作用再考

    小山内 康人, 土屋 範芳, 大和田 正明, 豊島 剛志, 白石 和行, 足立 達朗

    日本鉱物学会・学術講演会,日本岩石鉱物鉱床学会学術講演会講演要旨集   2007.9

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    Metamorphic evolution of Sor Rondane Mountains, Doronning Maud Land, East Antarctica : reconsideration

    DOI: 10.14824/jakoka.2007.0.225.0

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Professional Memberships

  • The Archaeological Society of Kyushu

  • Japan Association of Mineralogical Sciences

  • Japan Geoscience Union

  • Geological Society of Japan

Academic Activities

  • Screening of academic papers

    Role(s): Peer review

    2023

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:1

  • Screening of academic papers

    Role(s): Peer review

    2022

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:1

  • Screening of academic papers

    Role(s): Peer review

    2019

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

  • 座長(Chairmanship)

    日本地質学会  ( Japan ) 2013.9

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    Type:Competition, symposium, etc. 

  • 座長(Chairmanship)

    日本鉱物科学会2010年年会  ( Japan ) 2010.9

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Research Projects

  • 考古地磁気年代推定法のフロンティアの開拓:台湾・ベトナムへの展開

    Grant number:2 4 H 0 0 1 0 5  2024 - 2027

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    大野 正夫, 山本 裕二, 足立 達朗, 加藤 千恵, 田尻 義了, 畠山 唯達, 桑原 義博, 山形 眞理子, 吉村 由多加

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

    本研究では、地磁気の強さの「永年変化」を用いた考古地磁気強度年代推定法を、これまで同推定法が適用されてこなかった「フロンティア」である台湾とベトナムをフィールドに展開する。ある程度しっかりした土器編年が構築されているベトナムと、まだ確固たる土器編年の無い台湾という異なる二つのフィールドで、土器を資料として考古地磁気年代推定法の新たな可能性を示すことで、アジアの遺物・遺跡に広く考古地磁気強度年代推定法が適用可能であることを実証し、アジア各国の考古学的年代観を結んで俯瞰することが可能になると期待される。

    CiNii Research

  • 瑞穂遺跡第11次調査出土粘土等分析

    2023.5 - 2024.3

    Research commissions

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    Authorship:Coinvestigator(s)  Grant type:Other funds from industry-academia collaboration

  • 超高空間分解能マルチ年代測定によるプレート収斂境界のテクトニクス解析の新展開

    Grant number:23H00145  2023.4 - 2027.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    河上 哲生, 平田 岳史, 坂田 周平, 東野 文子, 中嶋 徹, 中野 伸彦, 足立 達朗

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    Grant type:Scientific research funding

    数ミクロン径の「その場ジルコン年代測定」を開発し、温度-圧力-変形-部分融解-流体活動履歴を制約したプレート収斂域試料に適用する。これにより多数の年代制約を同履歴に与えることができるため、プレート収斂域の岩石が深部へ沈み込んだ後、中深度へ上昇する間の岩石上昇速度を、高精度で決定できる。さらに低温・浅部をカバーする年代測定法を同一試料へ適用し、より浅所に露出するまでの一連のプロセスを解読する。こうして得られる情報を境界条件とした3Dテクトニックモデルを構築する。以上により大山脈が大陸衝突帯に形成される条件を理解し、地殻深部過程と表層での大山脈形成による環境変動とを結び付ける新展開を目指す。

    CiNii Research

  • 令和4年度田本第1号窯跡出土須恵器等の胎土分析

    2022.11 - 2024.3

    Research commissions

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    Authorship:Coinvestigator(s)  Grant type:Other funds from industry-academia collaboration

  • 七ヶ瀬遺跡出土人骨・石材の調査研究

    2022.10 - 2023.3

    Research commissions

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    Authorship:Coinvestigator(s)  Grant type:Other funds from industry-academia collaboration

  • 村島宮の首遺跡岩石分析

    2022.10 - 2023.3

    Research commissions

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    Authorship:Coinvestigator(s)  Grant type:Other funds from industry-academia collaboration

  • Establishment of an International Obsidian Research Hub: Introduction and New Development of International Standards for Identification of Obsidian Sources

    Grant number:23K22012  2022.4 - 2026.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    隅田 祥光, 足立 達朗, 角縁 進, 島田 和高, 池谷 信之

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    Grant type:Scientific research funding

    本研究では,エネルギー分散型蛍光X線分析装置を用いた定量分析による黒曜石製石器の原産地判別法の国内初のシステムを完成させる。特に,海外の研究事例との相互検証や相互利用を可能とするには,高い正確度と再現性をもつ定量分析法の実践が必要である。このために,数十種類の国内の黒曜石を3つの研究施設にてEDXRFよりも精密な手法で正確な化学分析値を求め,これらをEDXRFによる定量分析の標準試料と定めることで,従来の国際標準法では困難であった国内の黒曜石を対象としたEDXRFによる定量分析法を確立する。

    CiNii Research

  • 国際的黒曜石研究拠点(ハブ)の構築:黒曜石原産地判別法の国際標準の導入と新展開

    2022 - 2025

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 泊大塚古墳の葺石の産地同定に関する研究

    2022

    糸島市協定大学等課題解決型研究事業

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    Authorship:Principal investigator  Grant type:Contract research

  • 考古学領域への「磁性分析法」の導入と開発-土器の新たな年代決定・産地同定の可能性

    Grant number:21K18380  2021.7 - 2024.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Exploratory)

    山本 裕二, 足立 達朗, 中久保 辰夫, 畠山 唯達

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    Grant type:Scientific research funding

    考古学は、遺構・遺物より人類の過去を追究することを目的とする。土器を例に取ると、肉眼観察と実測により資料の形態的特徴や製作技術等を図化し、実測図「カタログ」と対照して年代や産地の比定を行う。比定の信頼性向上のため、新たな科学的手法として「磁性分析法」の導入と開発を試みる。日本古代を代表する土器資料が得られている布留遺跡を中心に資料の提供を受けて観察・分析を行い、有望な磁性指標を見出すことを試みる。

    CiNii Research

  • 磁気学的・鉱物学的手法による土器焼成環境の解明 ―鉄・酸素の挙動から―

    Grant number:21K00994  2021 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    畠山 唯達, 足立 達朗, 加藤 千恵

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

    本研究では窯内焼成で粘土から土器へ変化する物質中の鉱物、とくに含鉄鉱物の挙動を明らかにするために、(1)室内における焼成実験の試料、(2)復元古窯において焼成した試料、および(3)実際の考古試料を対象に磁気学的・鉱物学的・地球化学的分析を行う。(1)については、本計画で小型炉を購入し、制御下において種々の粘土を焼成し、順次分析する。(2)については、古い登り窯を復元している備前焼作家に協力を仰ぎ、試料を窯内複数個所に置いて焼いてもらい、分析する。(3)については(1), (2)の結果を踏まえて、過去の焼成環境の推定を行う。

    CiNii Research

  • 史跡天然記念物屋島の岩石分析

    2020.10 - 2022.3

    Research commissions

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    Authorship:Coinvestigator(s)  Grant type:Other funds from industry-academia collaboration

  • 考古地磁気年代推定法の東アジアへの展開:過去3500年間の新たな連続指標の確立

    2020.4 - 2023.3

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    Authorship:Coinvestigator(s) 

  • 日韓弥生・古墳時代石硯・研石の再検討

    2020.4 - 2022.3

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    Authorship:Coinvestigator(s) 

  • 考古地磁気年代推定法の東アジアへの展開:過去3500年間の新たな連続指標の確立

    Grant number:20H00028  2020 - 2024

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

    大野 正夫, 山本 裕二, 畠山 唯達, 田尻 義了, 渋谷 秀敏, 加藤 千恵, 足立 達朗, 齋藤 武士, 桑原 義博

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

    本研究では、地磁気の強さの「永年変化」を用いた過去3500年間(縄文時代後晩期以降)の遺跡・遺物の年代の決定方法を確立する。そのため、従来あまり利用されてこなかった土器片・甕棺・瓦などを主な資料とし、新手法である「綱川―ショー法」を用いて地磁気強度の推定を行い、地磁気強度変化の標準曲線を構築する。この地磁気強度永年変化曲線は東アジアの遺物・遺跡の新たな年代指標となると考えられる。

    CiNii Research

  • 日韓弥生・古墳時代石硯・研石の再検討

    Grant number:20K01098  2020 - 2023

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    武末 純一, 足立 達朗, 村田 裕一, 古澤 義久

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    研究代表者がこれまで進めてきた日韓の弥生時代文字使用に関わる研究の総括と、古墳時代の石硯・研石研究の開拓が目的である。墨を磨るための石硯・研石と様々な器物を砥ぐ砥石との弁別が主目的で、中国大陸の類例との比較や、砥石研究者・地質学研究者による使用痕や石材の検討によって基準を明確に定め、確実な石硯・研石を摘出する。また、弥生・古墳時代の海村を中心とした交易での中国銭貨の使用や重さを量るおもりである天秤権・棹秤権の使用、楽浪土器の様相を含めて、日韓の弥生時代~古墳時代中期の文字使用の実態に迫り、10進法の存在も明らかにする。また、韓国の考古学研究者との共同研究を進める。

    CiNii Research

  • 東南極の大陸地殻の発達過程と地殻流体に関する総合的研究

    2019.4 - 2023.3

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    Authorship:Coinvestigator(s) 

  • 黒曜石原産地のオープンデータ化によるLA-ICP-MSを用いた産地判別法の新展開

    2019.4 - 2022.3

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    Authorship:Coinvestigator(s) 

  • 黒曜石原産地のオープンデータ化によるLA-ICP-MSを用いた産地判別法の新展開

    2019 - 2021

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 主要重鉱物のマルチ同位体初生値を用いた砕屑性岩の高精度分類とその地質学的応用展開

    Grant number:18H01316  2018 - 2022

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    中野 伸彦, 足立 達朗, 亀井 淳志

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

    本課題ではジルコン分離の際の副産物であり,従来破棄されるアパタイトおよびモナズ石からそれぞれSrおよびNd同位体比測定手法を確立し,ジルコンの年代測定とHf同位体比の測定を併せて,鉱物分離,U-Pb年代測定,Sr-Nd-Hf同位体比測定の一連のルーチン分析ルーチンを確立した.これらの測定には従来の同位体分析で必要である岩石の溶解や元素の分離を必要とせず,極めて迅速分析可能である.また,これらの同位体比は,母岩の火成岩類と類似した値をしめした.いくつかの課題は認められるものの,本研究の迅速マルチ同位体比測定システムにより,砕屑性岩中の鉱物粒子からより詳細な原岩情報が得られる結果となった.

    CiNii Research

  • 古人骨歯牙の超高精度同位体分析に基づく人の移動と親族・婚姻関係の解明

    Grant number:18K18529  2018 - 2021

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Challenging Research(Exploratory)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 3~7世紀の琉球列島における人と文化の交流史研究

    Grant number:17H02416  2017 - 2019

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 巨大噴火災害の実態解明に向けた火山灰考古学研究

    2016.4 - 2020.3

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    Authorship:Coinvestigator(s) 

  • 新指標による遺跡の年代測定:考古地磁気方位・強度永年変化標準曲線の確立

    Grant number:16H01826  2016 - 2019

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (A)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 巨大噴火災害の実態解明に向けた火山灰考古学研究

    Grant number:16K03159  2016 - 2018

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 鉄文化財の極微量元素・同位体組成分析に基づく地球科学的手法のアプローチ

    Grant number:16K12809  2016 - 2017

    Grants-in-Aid for Scientific Research  Grant-in-Aid for challenging Exploratory Research

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 蛇紋岩の局所Re-Os年代測定法の確立

    Grant number:15K17778  2015 - 2017

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists (B)

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    Authorship:Principal investigator  Grant type:Scientific research funding

  • 遺跡出土資料の産地分析に関する新手法の開発

    2015

    平成27年度P&P特別枠 つばさプロジェクト

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    Authorship:Coinvestigator(s)  Grant type:On-campus funds, funds, etc.

  • 高精度地球科学分析を用いた弥生時代の石器生産と流通ネットワークの解明

    2014.4

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    Authorship:Coinvestigator(s) 

  • 高精度地球科学分析を用いた弥生時代の石器生産と流通ネットワークの解明

    2014 - 2016

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

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    Authorship:Coinvestigator(s)  Grant type:Scientific research funding

  • 誘導結合プラズマ質量分析計を用いた金属器の微量元素・同位体局所分析法の開発

    2014

    九州大学教育研究プログラム・研究拠点形成プロジェクト(P&P)

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    Authorship:Principal investigator  Grant type:On-campus funds, funds, etc.

  • DREAM (Dronning Maud Land Evolution, Assembly and Movement) project

    2013.5

  • 地球科学的高精度分析に基づくいわゆる今山系石斧と今山玄武岩の対比

    2013

    特色ある研究プログラム支援経費

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    Authorship:Coinvestigator(s)  Grant type:On-campus funds, funds, etc.

  • 高精度元素・同位体分析システムを用いた原始古代人口移動・物流ネットワークの研究

    2010.4 - 2012.3

  • アジア大陸における衝突型造山帯の精密解析と大陸変動テクトニクスの解明

    2009.8 - 2013.8

  • 黒曜石原産地のオープンデータ化によるLA-ICP-MSを用いた産地判別法の新展開

    Grant number:19K01128 

    隅田 祥光, 足立 達朗, 及川 穣

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    Grant type:Scientific research funding

    これまで信州や隠岐などの黒曜石原産地の調査を行い得られた情報のデータベース化と波長分散型蛍光X線分析装置による主要・微量元素分析そして石器の原産地判別を実践した。しかしLA-ICP-MS(レーザー溶出型誘導結合プラズマ質量分析計)が国際的な共通ツールとされる中で国内の黒曜石原産地の希土類元素の情報蓄積が課題として残された。本研究ではLA-ICP-MSによる希土類元素組成を加えたデータベースをWeb上でオープン化しこれを利用した新たな国内の原産地判別法を確立させる。国内外の研究者が黒曜石をやり取りする手間なくオープンデータを利用し合うことでグローバルに展開する人類活動の痕跡がさらに見出されることが期待できる。

    CiNii Research

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Educational Activities

  • 学部学生および大学院生の研究活動(野外調査,機器分析,論文作成)の指導補助を行っている.

Class subject

  • 地球科学C

    2024.12 - 2025.2   Winter quarter

  • 総合演習(包括的地球科学コース) Ⅳ

    2024.10 - 2025.3   Second semester

  • 最先端地球科学

    2024.10 - 2025.3   Second semester

  • 総合演習(包括的地球科学コース) II

    2024.10 - 2025.3   Second semester

  • 地球科学B

    2024.10 - 2024.12   Fall quarter

  • システム科学基礎

    2024.10 - 2024.12   Fall quarter

  • 共創プロジェクト

    2024.10 - 2024.12   Fall quarter

  • アジア埋蔵文化財学B

    2024.6 - 2024.8   Summer quarter

  • 地球環境実習

    2024.6 - 2024.8   Summer quarter

  • 共創プロジェクト

    2024.6 - 2024.8   Summer quarter

  • 総合演習(包括的地球科学コース)Ⅲ

    2024.4 - 2024.9   First semester

  • 総合演習(包括的地球科学コース)Ⅰ

    2024.4 - 2024.9   First semester

  • アジア埋蔵文化財学A

    2024.4 - 2024.6   Spring quarter

  • 地球環境実習

    2023.10 - 2024.3   Second semester

  • 最先端地球科学

    2023.10 - 2024.3   Second semester

  • 総合演習(包括的地球科学コース) II

    2023.10 - 2024.3   Second semester

  • 総合演習(包括的地球科学コース) Ⅳ

    2023.10 - 2024.3   Second semester

  • システム科学基礎

    2023.10 - 2023.12   Fall quarter

  • 地球の理解

    2023.10 - 2023.12   Fall quarter

  • アジア埋蔵文化財学B

    2023.6 - 2023.8   Summer quarter

  • 地球環境実習

    2023.4 - 2023.9   First semester

  • 総合演習(包括的地球科学コース)Ⅰ

    2023.4 - 2023.9   First semester

  • 総合演習(包括的地球科学コース)Ⅲ

    2023.4 - 2023.9   First semester

  • 地球の理解

    2023.4 - 2023.6   Spring quarter

  • 社会の中の地球科学

    2023.4 - 2023.6   Spring quarter

  • アジア埋蔵文化財学A

    2023.4 - 2023.6   Spring quarter

  • 地球環境実習

    2022.10 - 2023.3   Second semester

  • 最先端地球科学

    2022.10 - 2023.3   Second semester

  • 総合演習(包括的地球科学コース) II

    2022.10 - 2023.3   Second semester

  • 総合演習(包括的地球科学コース) Ⅳ

    2022.10 - 2023.3   Second semester

  • 地球の理解

    2022.10 - 2022.12   Fall quarter

  • アジア埋蔵文化財学B

    2022.6 - 2022.8   Summer quarter

  • 地球環境実習

    2022.4 - 2022.9   First semester

  • 総合演習(包括的地球科学コース)Ⅰ

    2022.4 - 2022.9   First semester

  • 総合演習(包括的地球科学コース)Ⅲ

    2022.4 - 2022.9   First semester

  • 地球の理解

    2022.4 - 2022.6   Spring quarter

  • 社会の中の地球科学

    2022.4 - 2022.6   Spring quarter

  • アジア埋蔵文化財学A

    2022.4 - 2022.6   Spring quarter

  • 最先端地球科学

    2021.10 - 2022.3   Second semester

  • 総合演習(包括的地球科学コース) II

    2021.10 - 2022.3   Second semester

  • 総合演習(包括的地球科学コース) Ⅳ

    2021.10 - 2022.3   Second semester

  • 共創プロジェクト

    2021.10 - 2021.12   Fall quarter

  • アジア埋蔵文化財学B

    2021.6 - 2021.8   Summer quarter

  • 共創プロジェクト

    2021.6 - 2021.8   Summer quarter

  • 総合演習(包括的地球科学コース)Ⅰ

    2021.4 - 2021.9   First semester

  • 総合演習(包括的地球科学コース)Ⅲ

    2021.4 - 2021.9   First semester

  • アジア埋蔵文化財学A

    2021.4 - 2021.6   Spring quarter

  • 社会の中の地球科学

    2021.4 - 2021.6   Spring quarter

  • 総合演習(包括的地球科学コース) II

    2020.10 - 2021.3   Second semester

  • 総合演習(包括的地球科学コース) Ⅳ

    2020.10 - 2021.3   Second semester

  • 最先端地球科学

    2020.10 - 2021.3   Second semester

  • 社会の中の地球科学

    2020.10 - 2020.12   Fall quarter

  • 共創基礎プロジェクト2

    2020.10 - 2020.12   Fall quarter

  • 共創基礎プロジェクト1

    2020.6 - 2020.8   Summer quarter

  • 総合演習(包括的地球科学コース)Ⅰ

    2020.4 - 2020.9   First semester

  • 総合演習(包括的地球科学コース)Ⅲ

    2020.4 - 2020.9   First semester

  • アジア埋蔵文化財学A

    2020.4 - 2020.6   Spring quarter

  • 総合演習(包括的地球科学コース) II

    2019.10 - 2020.3   Second semester

  • 総合演習(包括的地球科学コース) Ⅳ

    2019.10 - 2020.3   Second semester

  • 最先端地球科学

    2019.10 - 2020.3   Second semester

  • アジア埋蔵文化財学B

    2019.6 - 2019.8   Summer quarter

  • 基幹教育セミナー

    2019.6 - 2019.8   Summer quarter

  • 総合演習(包括的地球科学コース)Ⅰ

    2019.4 - 2019.9   First semester

  • 総合演習(包括的地球科学コース)Ⅲ

    2019.4 - 2019.9   First semester

  • アジア埋蔵文化財学A

    2019.4 - 2019.6   Spring quarter

  • 総合演習(包括的地球科学コース) Ⅳ

    2018.10 - 2019.3   Second semester

  • 総合演習(包括的地球科学コース) II

    2018.10 - 2019.3   Second semester

  • アジア埋蔵文化財学B

    2018.6 - 2018.8   Summer quarter

  • 基幹教育セミナー

    2018.6 - 2018.8   Summer quarter

  • 総合演習(包括的地球科学コース)Ⅲ

    2018.4 - 2018.9   First semester

  • 総合演習(包括的地球科学コース)Ⅰ

    2018.4 - 2018.9   First semester

  • アジア埋蔵文化財学A

    2018.4 - 2018.6   Spring quarter

  • 総合演習(包括的地球科学コース) II

    2017.10 - 2018.3   Second semester

  • 総合演習(包括的地球科学コース) Ⅳ

    2017.10 - 2018.3   Second semester

  • 基幹教育セミナー

    2017.6 - 2017.8   Summer quarter

  • アジア埋蔵文化財学B

    2017.6 - 2017.8   Summer quarter

  • 総合演習(包括的地球科学コース)Ⅰ

    2017.4 - 2017.9   First semester

  • 総合演習(包括的地球科学コース)Ⅲ

    2017.4 - 2017.9   First semester

  • アジア埋蔵文化財学A

    2017.4 - 2017.6   Spring quarter

  • 総合演習(包括的地球科学コース) Ⅳ

    2016.10 - 2017.3   Second semester

  • 総合演習(包括的地球科学コース) II

    2016.10 - 2017.3   Second semester

  • アジア埋蔵文化財学

    2016.4 - 2016.9   First semester

  • 総合演習(包括的地球科学コース)Ⅰ

    2016.4 - 2016.9   First semester

  • 総合演習(包括的地球科学コース)Ⅲ

    2016.4 - 2016.9   First semester

  • 総合演習(包括的地球科学コース) Ⅳ

    2015.10 - 2016.3   Second semester

  • 総合演習(包括的地球科学コース) II

    2015.10 - 2016.3   Second semester

  • アジア埋蔵文化財学

    2015.4 - 2015.9   First semester

  • 総合演習(包括的地球科学コース)Ⅰ

    2015.4 - 2015.9   First semester

  • 総合演習(包括的地球科学コース)Ⅲ

    2015.4 - 2015.9   First semester

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FD Participation

  • 2010.4   Role:Participation   Title:新任教員研修会

    Organizer:University-wide

Visiting, concurrent, or part-time lecturers at other universities, institutions, etc.

  • 2023  第65次日本南極地域観測隊  Classification:Part-time faculty  Domestic/International Classification:Japan 

  • 2019  第61次日本南極地域観測隊  Classification:Part-time faculty  Domestic/International Classification:Japan 

  • 2014  高知大学  Classification:Intensive course  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:2014/9/1-9/30

Social Activities

  • 伊都国歴史博物館・博物館講座「伊都学」

    伊都国歴史博物館  伊都国歴史博物館  2023.3

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 大学と地域の連携・交流促進事業 「触れて楽しむ南極教室」

    九州大学・福岡市  福岡市・さいとぴあ西部地域交流センター  2018.3

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 大学と地域の連携・交流促進事業 「触れて楽しむ親子南極教室」

    九州大学・福岡市  福岡市・さいとぴあ西部地域交流センター  2017.3

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 大学と地域の連携・交流促進事業 「触れて楽しむ親子南極教室」

    九州大学・福岡市  九州大学伊都キャンパス  2016.3

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 大学と地域の連携・交流促進事業 「触れて楽しむ親子南極教室」

    九州大学・福岡市  九州大学伊都キャンパス  2015.3

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

  • 大学と地域の連携・交流促進事業 「触れて楽しむ親子南極教室」

    九州大学・福岡市  九州大学伊都キャンパス  2014.3

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Lecture

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Travel Abroad

  • 2019.11 - 2020.1

    Staying countory name 1:Other   Staying institution name 1:Princess elizabeth station

  • 2018.8

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2017.8

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2016.8

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2015.8

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2015.6 - 2015.7

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2014.8

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2013.3 - 2013.4

    Staying countory name 1:Sri Lanka   Staying institution name 1:University of Peradeniya

  • 2013.3

    Staying countory name 1:Korea, Republic of   Staying institution name 1:Don-A University

  • 2013.3

    Staying countory name 1:Russian Federation   Staying institution name 1:Institute of the Earth's Crust, the Russian Academy of Science, Siberian Branch

  • 2013.2

    Staying countory name 1:Indonesia   Staying institution name 1:Agency of Energy and Mineral Resources of Central Timor Regency

  • 2012.10

    Staying countory name 1:Algeria   Staying institution name 1:University of Sciences and Technology Houari Boumediene

  • 2012.8

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2012.3

    Staying countory name 1:Indonesia   Staying institution name 1:Department of Mining Engineering, Banjalmasin State Polytechnic

  • 2011.8

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2011.3

    Staying countory name 1:Indonesia   Staying institution name 1:University of Gadjah Mada

    Staying institution name 2:Hasanuddin University

  • 2010.8

    Staying countory name 1:Mongolia   Staying institution name 1:Mongolian University of Science and Technology

  • 2007.11 - 2008.2

    Staying countory name 1:Other   Staying institution name 1:Antarctic Logistic Centre International

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