Faculty Profiles - SATO HONAMI

Information

写真a

SATO HONAMI

Organization

Faculty of Science Department of Earth and Planetary Sciences Assistant Professor
Graduate School of Sciences Department of Earth and Planetary Sciences（Concurrent）
School of Sciences Department of Earth and Planetary Sciences（Concurrent）

Contact information

Profile

地球史を通した生命進化は、地球環境異変とそれに続く大量絶滅により駆動されてきました。しかし、環境変動を引き起こした主要因や、絶滅から多様化へ至る過程は各時代で異なるシナリオが提案されています。研究室では、生物大量絶滅が記録されている時代境界の連続堆積物試料を対象として、小惑星衝突や火山活動に鋭敏な地球化学的トレーサーとなる元素濃度・同位体比変動を高分解能で解析することにより、巨大天体衝突や大規模噴火にともなう大気–海洋系の変動メカニズムや生態系の応答を明らかにすることを目指しています。

External link

Research Areas

Natural Science / Biogeosciences
Natural Science / Solid earth sciences

Degree

Doctor of Science

Research History

Kyushu University 理学研究院地球惑星科学部門 Assistant Professor

2022.4 - Present

Research Interests・Research Keywords

Research theme： Triassic-Jurassic boundary: Large volcanic event and mass extinction

Keyword： Osmium isotope, Iridium anomaly

Research period： 2020.9 - Present
Research theme： Cretaceous-Paleogene boundary: Large impact event and mass extinction

Keyword： Environmental changes, Mass extinction, Highly siderophile elements

Research period： 2016.4 - Present
Research theme： Late Triassic impact event

Keyword： Impact event, Triassic, Ejecta deposit

Research period： 2012.4 - Present

Awards

令和５年度科学技術分野の文部科学大臣表彰科学技術賞（研究部門）

2023.4 文部科学省
日本学術振興会育志賞

2015.3
日本地質学会小藤賞

2012.9

Papers

Extraterrestrial 3He flux variability during the Triassic recorded in pelagic bedded cherts of Japan Reviewed International journal

Onoue T., Setoyama K., Sato H., Shiohara T., Takahata N.

Proceedings of the Japan Academy Series B Physical and Biological Sciences 102 ( 5 ) 167 - 178 2026.5 （ ISSN:0386-2208 ）

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Language：English Publishing type：Research paper (scientific journal) Publisher：Proceedings of the Japan Academy Series B Physical and Biological Sciences

Interplanetary dust particles are highly enriched with 3He implanted by the solar wind, enabling the reconstruction of extraterrestrial dust fluxes to Earth from sedimentary 3He records. However, the fluxes of extraterrestrial dust during periods predating the Cretaceous remain poorly constrained. In this study, we present the first comprehensive reconstruction of extraterrestrial 3He fluxes for much of the Triassic period (approximately 246-212 Ma) based on pelagic-bedded cherts preserved in Jurassic accretionary complexes in Japan. We reconstructed extraterrestrial 3He fluxes after correcting for dilution by radiolarian-derived biogenic silica. The records reveal long-term flux enhancements during the Ladinian and late Carnian (Tuvalian) intervals, reaching amplitudes approximately 2-3 times the background level and persisting for ∼3-4 Myr. These features are inconsistent with short-lived influx events, such as comet showers or asteroid breakups, and are instead comparable to long-term background variations in the Cretaceous and Cenozoic records. A sharp 3He flux peak at ∼215-216 Ma is accompanied by elevated 3He/4He ratios, indicating a sudden influx of fine-grained extraterrestrial material. The timing of this excursion closely coincides with the Manicouagan impact event (215.4 Ma), suggesting a link between asteroid disruption and enhanced dust production during the Triassic.

DOI： 10.2183/pjab.102.012

Scopus

PubMed
チチュルブ衝突後の生態系回復を支えた熱水活動─海洋オスミウム同位体比が示す長期的影響─ Invited

佐藤峰南

Isotope News 804 14 - 17 2026.4

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Authorship：Lead author,　Corresponding author Language：Japanese
High-resolution integrated conodont and radiolarian biostratigraphy with δ13Corg record across the Norian/Rhaetian boundary in the Sasso di Castalda section, Lagonegro Basin, southern Italy Reviewed International coauthorship International journal

Shotaro Omori, Honami Sato, Kento Motomura, Angela Bertinelli, Tetsuji Onoue, Manuel Rigo

Palaeogeography, Palaeoclimatology, Palaeoecology 681 113395 - 113395 2026.1 （ ISSN:0031-0182 ）

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Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

The Norian/Rhaetian boundary (NRB) is marked by faunal turnover and global carbon cycle perturbation. Several possible causes of the environmental perturbation across the NRB have been proposed, including the volcanic activity from the Angayucham Terrane and an impact event related to the Rochechouart crater. Evaluating these proposed causes requires high-resolution biostratigraphy and accurate interregional correlation of carbon isotope curves. However, such comparisons remain challenging due to the limited resolution and inconsistent calibration of radiolarian and conodont biostratigraphic frameworks. Here, we present integrated, high-resolution radiolarian and conodont biostratigraphy and organic carbon isotope (δ13C<inf>org</inf>) data from an Upper Triassic pelagic sequence in the Sasso di Castalda section of the Lagonegro Basin, southern Italy. Our biostratigraphic analyses reveal two radiolarian assemblages, the Betraccium deweveri and Proparvicingula moniliformis zones, indicating an age from uppermost Norian to lowermost Rhaetian. The first occurrence of the conodont Misikella posthernsteini s.s. (sensu stricto) constrains the base of the Rhaetian. The δ13C<inf>org</inf> profile in the latest Norian exhibits an overall negative shift characterized by positive and negative fluctuations that correspond to the globally recognized carbon isotope excursion at this boundary. Furthermore, based on our conodont biostratigraphic data, the deposition of the platinum group elements-enriched layer reported in the studied section is constrained to the latest Norian, suggesting a correlation with the Rochechouart impact. Since this layer corresponds to the onset of the negative δ13C<inf>org</inf> shift, our new δ13C<inf>org</inf> record, integrated with high-resolution biostratigraphy, could contribute to understanding the cause of extinction across the NRB.

DOI： 10.1016/j.palaeo.2025.113395

Scopus
Paleoenvironment fluctuations and conodont size variations in the Baoshan block of eastern Tethys: implications for the late Norian warming event (Late Triassic) Reviewed International coauthorship International journal

Bao Guo, Yixing Du, Xin Jin, Tetsuji Onoue, Honami Sato, Yuki Tomimatsu, Lu Han, Zhiqiang Shi, Yuehan Sun, Qiangwang Wu, Manuel Rigo

Palaeogeography, Palaeoclimatology, Palaeoecology 671 112983 - 112983 2025.8 （ ISSN:0031-0182 eISSN:1872-616X ）

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Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

The Norian Stage of the Late Triassic represents a significant interval in geological history marked by environmental and biological evolutions. One notable event during this time is the late Norian warming event (W3), occurring in the late Norian. Globally recorded, the warming event is associated with carbon cycle perturbations, temperature increases, changes in biodiversity, and enhanced weathering intensity. Previous studies have focused on carbon isotopes, sedimentology, and biostratigraphy in the Baoshan block. However, information on environmental changes in this area during the Norian Stage remains limited. In this study, we utilized redox conditions indexes (V/Cr, U/Th, Mo<inf>EF</inf>/U<inf>EF</inf>, and Ce/Ce⁎) and paleo-productivity proxies (P<inf>org</inf>, Ba<inf>xs</inf>) to reconstruct the ocean paleoenvironment in the HYB section of the Baoshan block. Two stages of reducing conditions and paleo-productivity fluctuations were identified during the late Norian warming event interval. In addition, the size of 1606 well-preserved adult conodont pectiniform elements from the HYB section was measured. The mean length of conodonts increased before the Alaunian-Sevatian boundary and then decreased significantly after the boundary in the Sevatian. Conodont size variations are typically related to changes in living environments, but our study found no direct relation between changes in redox conditions, paleo-productivity, and variations in conodont size in the Baoshan block. It may be due to the predominant conodont fauna, Mockina, being surface water dwellers. These surface-dwelling conodonts were not influenced by changes in seafloor redox conditions in relatively deep water. The direct evidence is instead that the size variation of conodonts is more likely affected by temperature changes in Tethyan surface seawater during the late Norian warming event.

DOI： 10.1016/j.palaeo.2025.112983

Web of Science

Scopus
Target rock mixing, meteoritic contribution, and hydrothermal alteration recorded in the 2017 drill core material of the Rochechouart impact structure Reviewed International coauthorship International journal

Juliette Faucher, Béatrice Luais, Philippe Claeys, Honami Sato, Akira Ishikawa, Pim Kaskes, Thomas Déhais, Philippe Lambert, Steven Goderis

Geological Society of America Bulletin 137 ( 9-10 ) 4337 - 4359 2025.5 （ ISSN:0016-7606 eISSN:1943-2674 ）

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Language：English Publishing type：Research paper (scientific journal) Publisher：Geological Society of America

Abstract

This work presents a detailed petrographic, geochemical, and isotopic characterization of 49 samples from the Rochechouart impact structure (Limousin, France) recovered during the 2017 drilling campaign. The aims of this study were to constrain the processes that affected the target lithologies and led to the formation of the melt-rich impactites preserved in the Rochechouart impact structure today. Formed on a gneissic and granitic target, the current lithologies observed in the Rochechouart impact structure and in the drilled cores range from the fractured target to the impact melt rocks, forming whole impactite sequences with breccias, suevites, and impactoclastites. Two different types of impact melt rocks (described as red and yellow in this study) are found. The dichotomy in impact melt rocks has previously been proposed to be linked to the two major target lithologies in the region, with the red impact melt rocks originating mainly from the gneiss lithologies and the yellow type dominated by a granitic precursor.

Impact-induced hydrothermal alteration affected all recovered samples but is particularly pronounced in the case of the yellow impact melt rocks, as highlighted by the increases in fluid-mobile element concentrations, with up to four times the concentration of K2O compared to basement lithologies. The light rare earth elements (La, Yb) also record hydrothermal alteration. However, for the other lithologies, the level of alteration remains limited and allows the meteoritic component to be traced among the melt-rich lithologies, recorded by the increases in siderophile elements (moderate increases in Ni, Cr, and Co and high increases in Os, Ir, Ru, Pt, Pd, and Re) in all characterized red impact melt rocks. The Os isotopic compositions of the red impact melt rocks show meteoritic contributions up to 0.5% CI chondrite.

DOI： 10.1130/B38152.1

Web of Science
Prolonged 187Os/188Os excursion implies hydrothermal influence after the Chicxulub impact in the Gulf of Mexico Reviewed International coauthorship International journal

Honami Sato, Akira Ishikawa, Ignacio Arenillas, José A. Arz, Vicente Gilabert, Philippe Claeys, Steven Goderis, Christopher M. Lowery, Sean P. S. Gulick, Joanna V. Morgan

Nature Communications 16 ( 1 ) 2901 2025.4 （ eISSN:2041-1723 ）

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Nature Communications

The Cretaceous/Paleogene boundary asteroid impact is recorded globally as a negative 187Os/188Os excursion, including in sediments recovered from the IODP-ICDP drilling within the peak ring of the Chicxulub structure in the Gulf of Mexico. The reconstructed marine 187Os/188Os curves can be used for global age correlations on the ~10 kyr scale. However, the versatility of Os isotope clock between the proximal and distal sites remains unclear. This paper presents 187Os/188Os records from early Paleocene sediments deposited in the Chicxulub impact basin and Mexican sites with biochronological scales. The results for these proximal sites show a recovery timescale of ~700 kyr, which is significantly longer than that of the distal sites (~200 kyr). The interval showing the 187Os/188Os decline coincides with the enrichment of hydrothermally-derived Mn, implying that hydrothermal venting at the Chicxulub structure may have played a role in the marine chemistry and ecosystem of the Gulf of Mexico.

DOI： 10.1038/s41467-025-58112-x

Web of Science

Scopus

PubMed
A newly identified Oceanic Anoxic Event at the Norian/Rhaetian boundary, and the onset of the declining diversity during the Late Triassic Reviewed International coauthorship International journal

Rigo, M.; Jin, X.; Godfrey, L.; Katz, M.E.; Sato, H.; Tomimatsu, Y.; Zaffani, M.; Maron, M.; Satolli, S.; Concheri, G.; Cardinali, A.; Wu, Q.; Du, Y.; Lei, J.Z.X.; van Wieren, C.S.; Tackett, L.S.; Campbell, H.; Bertinelli, A.; Onoue, T.

Scientific Reports 14 15574 2024.7

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Language：English Publishing type：Research paper (scientific journal) Publisher：Scientific Reports

The Carnian Pluvial Episode (CPE) was a short interval of extreme rainfall in the Late Triassic that caused significant changes in marine ecosystems. Global warming induced by Wrangellia volcanism is thought to have resulted in oceanic anoxia during the CPE, but the global extent, duration, and severity of anoxia, and its effects on major marine taxa, remain unclear. To address this, we examined an equatorial record of conditions in the Panthalassa Ocean during the CPE, focusing on marine Os isotope data, redox conditions, and conodont and radiolarian biostratigraphy. The results show that Wrangellia volcanism peaked in the latest Julian (early Carnian), coinciding with development of reducing conditions in the deep-sea Panthalassa. A strong conodont turnover occurred during the period of oceanic anoxia, whereas radiolarians were less affected and their diversity increased after the recovery from anoxia. The increased radiolarian diversity during the early Tuvalian (late Carnian) can be attributed to chemical weathering and enhanced nutrient fluxes associated with global warming and the more humid climate of Pangea.

DOI： 10.1038/s41598-024-66343-z
Weathering trends in the Norian through geochemical and rock magnetic analyses from the Pignola-Abriola section (Lagonegro Basin, Italy) Reviewed International coauthorship International journal

Matteo Maron, Tetsuji Onoue, Sara Satolli, Katsuhito Soda, Honami Sato, Giovanni Muttoni, Manuel Rigo

Climate of the Past 20 ( 3 ) 637 - 658 2024.3 （ ISSN:1814-9324 eISSN:1814-9332 ）

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Language：English Publishing type：Research paper (scientific journal) Publisher：Climate of the Past

We investigated the geochemical and rock magnetic properties of the magnetostratigraphically calibrated Pignola-Abriola section (Italy) in order to understand the climatic perturbations that characterize the late Norian-early Rhaetian interval (Late Triassic). We performed experiments on anhysteretic and isothermal remanence (ARM and IRM) and on magnetic susceptibility (χ) to obtain the rock magnetic parameters necessary for our paleoclimatic investigation. An episode of increase in the relative quantity of hematite, suggesting the enhanced subaerial oxidation of iron minerals, was identified in the Norian from ~217 Ma in the Alaunian up to ~211 Ma in the early Sevatian, followed by a decline up to 207-206 Ma at the end of the Norian (late Sevatian). The results of geochemical and multivariate statistical analyses support a long-term increase and reduction in rock weathering, confirming and extending previous 87Sr / 86Sr data from the Pizzo Mondello section (Italy). Possible causes of these long-term weathering trends are the multiphase uplifting of the Cimmerian orogen, occurring at mid-northern latitudes along the southern margin of Asia in the Late Triassic, and/or the northward motion of Pangea across the equatorial humid belt. Rapid excursions in oxidized iron minerals have also been observed across the Norian-Rhaetian boundary, the origin of which still has to be determined.

DOI： 10.5194/cp-20-637-2024

Web of Science

Scopus
Rhenium-osmium isotope evidence for the onset of volcanism in the central Panthalassa Ocean during the Norian “chaotic carbon episode” Reviewed International coauthorship International journal

Honami Sato, Tatsuo Nozaki, Tetsuji Onoue, Akira Ishikawa, Katsuhito Soda, Kazutaka Yasukawa, Jun-Ichi Kimura, Qing Chang, Yasuhiro Kato, Manuel Rigo

Global and Planetary Change 229 104239 - 104239 2023.10 （ ISSN:0921-8181 eISSN:1872-6364 ）

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

The late Norian “chaotic carbon episode” in the Late Triassic has been identified in North America, Italy, and China, reflecting a global carbon isotope perturbation. Although it has been suggested that catastrophic events, such as the emplacement of large igneous provinces, were the cause of this perturbation, direct evidence for volcanic forcing is lacking. In order to investigate the cause of the global “chaotic carbon episode” in the late Norian, we obtained osmium and organic carbon isotope data (187Os/188Os and δ13Corg) and major, trace, and highly siderophile element data and documented changes in radiolarian assemblages in a middle–upper Norian bedded chert succession in the Sakahogi section, Japan, deposited in a low-latitude zone of the Panthalassa Ocean. The δ13Corg data exhibit a significant carbon isotope excursion (CIE) during the late Norian (Sevatian 1) Mockina bidentata conodont zone. High-resolution 187Os/188Os data exhibit two negative shifts during the CIE, which are interpreted as related to volcanic activity. The biostratigraphic age and Os isotopic mass balance considerations for the ocean suggest that the onset of Angayucham volcanism was the source of unradiogenic Os that caused the decrease in seawater 187Os/188Os ratios during the Sevatian. A remarkable diversification of radiolarians with a large Mesosaturnalis bloom occurred during the low-187Os/188Os interval. This suggests that the Sevatian Mesosaturnalis species are likely indicators of the onset of Angayucham volcanism.

DOI： 10.1016/j.gloplacha.2023.104239

Web of Science

Scopus
Pelagic responses to oceanic anoxia during the Carnian Pluvial Episode (Late Triassic) in Panthalassa Ocean Reviewed International coauthorship International journal

Yuki Tomimatsu, Tatsuo Nozaki, Tetsuji Onoue, Hironao Matsumoto, Honami Sato, Yutaro Takaya, Jun-Ichi Kimura, Qing Chang, Manuel Rigo

Scientific Reports 13 ( 1 ) 16316 - 16316 2023.9 （ ISSN:2045-2322 eISSN:2045-2322 ）

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Language：English Publishing type：Research paper (scientific journal) Publisher：Springer Science and Business Media LLC

Abstract

The Carnian Pluvial Episode (CPE) was a short interval of extreme rainfall in the Late Triassic that caused significant changes in marine ecosystems. Global warming induced by Wrangellia volcanism is thought to have resulted in oceanic anoxia during the CPE, but the global extent, duration, and severity of anoxia, and its effects on major marine taxa, remain unclear. To address this, we examined an equatorial record of conditions in the Panthalassa Ocean during the CPE, focusing on marine Os isotope data, redox conditions, and conodont and radiolarian biostratigraphy. The results show that Wrangellia volcanism peaked in the latest Julian (early Carnian), coinciding with development of reducing conditions in the deep-sea Panthalassa. A strong conodont turnover occurred during the period of oceanic anoxia, whereas radiolarians were less affected and their diversity increased after the recovery from anoxia. The increased radiolarian diversity during the early Tuvalian (late Carnian) can be attributed to chemical weathering and enhanced nutrient fluxes associated with global warming and the more humid climate of Pangea.

DOI： 10.1038/s41598-023-43525-9

Web of Science

Scopus

PubMed

Other Link： https://www.nature.com/articles/s41598-023-43525-9
Geochemical records of the end-Triassic Crisis preserved in a deep marine section of the Budva Basin, Dinarides, Montenegro. Reviewed International coauthorship International journal

Sietze J. de Graaff, Lawrence M.E. Percival, Pim Kaskes, Thomas Déhais, Niels J. de Winter, Max N. Jansen, Jan Smit, Matthias Sinnesael, Johan Vellekoop, Honami Sato, Akira Ishikawa, Simo Spassov, Philippe Claeys, Steven Goderis

Palaeogeography, Palaeoclimatology, Palaeoecology 606 111250 - 111250 2022.11 （ ISSN:0031-0182 eISSN:1872-616X ）

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Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

The end-Triassic extinction event (∼ 201.5 Ma) is one of the five major mass extinction events in Earth's history, however, considerable discussion continues on the exact causes and timing of the event. This is because, whilst certain geochemical data on T-J sections appears to be largely comparable globally, with for example a significant (up to 6‰) negative carbon-isotope (δ13C) excursion at the extinction horizon, more often than not other geochemical variations are neither uniform nor fully consistent between sections. Critical to this discussion is that the majority of the studied sections containing the end-Triassic extinction event are limited to shallow marine or terrestrial sections, which are prone to discontinuities and hiatuses. In this study, we present carbon isotopes (δ13Ccarb), total organic carbon (TOC), major and trace, mercury (Hg) and highly siderophile elements (HSE), osmium-isotope compositions and paleomagnetic data of a relatively less studied deep-marine T-J succession in the Budva Basin, Čanj, Montenegro. At Čanj, deep-marine Triassic limestones are abruptly interrupted by a ∼ 6 cm finely laminated clay layer, before transitioning to more argillaceous Jurassic red beds. The clay layer is interpreted to represent the end-Triassic extinction interval and is characterized by a negative carbon isotope excursion, relative heavy rare earth element (HREE) enrichment, Hg increase, HSE enrichment and a sharp shift to unradiogenic osmium-isotopic ratios. This establishes the Čanj section as a unique and well-preserved outcrop that exquisitely encapsulates the end-Triassic extinction in the Tethyan marine realm. The distinct geochemical markers recorded at Čanj are consistent with the Central Atlantic Magmatic Province as the main driver behind the end-Triassic extinction.

DOI： 10.1016/j.palaeo.2022.111250

Web of Science

Scopus
A precise and accurate analytical method for determination of osmium isotope ratios at the 1–15 pg level by using a MC-ICP-MS equipped with sparging introduction and high-sensitivity discrete dynode-type ion-counting detectors Reviewed International journal

Junichiro Ohta, Tatsuo Nozaki, Honami Sato, Kana Ashida, Yasuhiro Kato

Journal of Analytical Atomic Spectrometry 37 ( 8 ) 1600 - 1610 2022.8 （ ISSN:0267-9477 eISSN:1364-5544 ）

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Language：English Publishing type：Research paper (scientific journal) Publisher：Royal Society of Chemistry (RSC)

Properly calibrated discrete dynode SEM ion-counting detectors and minimization of blank Os by an improved vial-cleaning method enables Os isotope analysis at the 1–15 pg level with high accuracy and precision.

DOI： 10.1039/d2ja00089j

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Sedimentary record of Upper Triassic impact in the Lagonegro Basin, southern Italy: Insights from highly siderophile elements and Re-Os isotope stratigraphy across the Norian/Rhaetian boundary Reviewed International coauthorship International journal

Sato, H., Ishikawa, A., Onoue, T., Tomimatsu, Y., Rigo, M.

Chemical Geology 586 120506 2021.12

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DOI： https://doi.org/10.1016/j.chemgeo.2021.120506
Rapid coupling between solid earth and ice volume during the Quaternary Reviewed International journal

Kuwahara, Y., Yasukawa, K., Fujinaga, K., Nozaki, T., Ohta, J., Sato, H., Kimura, J.-I., Nakamura, K., Yokoyama, Y., Kato, Y.

Scientific Reports 11 ( 1 ) 5695 2021.3

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DOI： https://doi.org/10.1038/s41598-021-84448-7
Globally distributed iridium layer preserved within the Chicxulub impact structure Reviewed International coauthorship International journal

Goderis, S., Sato, H., Ferrière, L., Schmitz, B., Burney, D., Kaskes, P., Vellekoop, J., Wittmann, A., Schulz, T., Chernonozhkin, S.M., Claeys, P., de Graaff, S.J., Déhais, T., de Winter, N.J., Elfman, M., Feignon, J.-G., Ishikawa, A., Koeberl, C., Kristiansson, P., Neal, C.R., Owens, J.D., Schmieder, M., Sinnesael, M., Vanhaecke, F., van Malderen, S.J.M., Bralower, T.J., Gulick, S.P.S., Kring, D.A., Lowery, C.M., Morgan, J.V., Smit, J., Whalen, M.T.

Science Advances 7 ( 9 ) eabe3647 2021.2

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Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1126/sciadv.abe3647
Marine osmium isotope record during the Carnian “pluvial episode” (Late Triassic) in the pelagic Panthalassa Ocean Reviewed International coauthorship International journal

Tomimatsu, Y., Nozaki, T., Sato, H., Takaya, Y., Kimura, J.-I., Chang, Q., Naraoka, H., Rigo, M., Onoue, T.

Global and Planetary Change 197 103387 2021.2

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DOI： https://doi.org/10.1016/j.gloplacha.2020.103387
Biotic and environmental changes in the Panthalassa Ocean across the Norian (Late Triassic) impact event Reviewed International journal

Sato, H., Takaya, Y., Yasukawa, K., Fujinaga, K., Onoue, T., Kato, Y.

Progress in Earth and Planetary Science 7 ( 1 ) 61 2020.10

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1186/s40645-020-00371-x
Geochemistry, geochronology and petrogenesis of Maya Block granitoids and dykes from the Chicxulub Impact Crater, Gulf of México: Implications for the assembly of Pangea Reviewed International coauthorship International journal

Zhao, J., Xiao, L., Gulick, S.P.S., Morgan, J.V., Kring, D., Fucugauchi, J.U., Schmieder, M., de Graaff, S.J., Wittmann, A., Ross, C.H., Claeys, P., Pickersgill, A., Kaskes, P., Goderis, S., Rasmussen, C., Vajda, V., Ferrière, L., Feignon, J.-G., Chenot, E., Perez-Cruz, L., Sato, H., Yamaguchi, K.

Gondwana Research 82 128 - 150 2020.6

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DOI： https://doi.org/10.1016/j.gr.2019.12.003
Probing the hydrothermal system of the chicxulub impact crater Reviewed International coauthorship International journal

Kring, D.A., Tikoo, S.M., Schmieder, M., Riller, U., Rebolledo-Vieyra, M., Simpson, S.L., Osinski, G.R., Gattacceca, J., Wittmann, A., Verhagen, C.M., Cockell, C.S., Coolen, M.J.L., Longstaffe, F.J., Gulick, S.P.S., Morgan, J.V., Bralower, T.J., Chenot, E., Christeson, G.L., Claeys, P., Ferrière, L., Gebhardt, C., Goto, K., Green, S.L., Jones, H., Lofi, J., Lowery, C.M., Ocampo-Torres, R., Perez-Cruz, L., Pickersgill, A.E., Poelchau, M.H., Rae, A.S.P., Rasmussen, C., Sato, H., Smit, J., Tomioka, N., Urrutia-Fucugauchi, J., Whalen, M.T., Xiao, L., Yamaguchi, K.E.

Science Advances 6 ( 22 ) eaaz3053 2020.5

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DOI： https://doi.org/10.1126/sciadv.aaz3053
A Miocene impact ejecta layer in the pelagic Pacific Ocean Reviewed International coauthorship International journal

Nozaki, T., Ohta, J., Noguchi, T., Sato, H., Ishikawa, A., Takaya, Y., Kimura, J.-I., Chang, Q., Shimada, K., Ishibashi, J.-I., Yasukawa, K., Kimoto, K., Iijima, K., Kato, Y.

Scientific Reports 9 ( 1 ) 16111 2019.11

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Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1038/s41598-019-52709-1
Triassic marine Os isotope record from a pelagic chert succession, Sakahogi section, Mino Belt, southwest Japan Reviewed International coauthorship International journal

Nozaki, T., Nikaido, T., Onoue, T., Takaya, Y., Sato, K., Kimura, J.-I., Chang, Q., Yamashita, D., Sato, H., Suzuki, K., Kato, Y., Matsuoka, A.

Journal of Asian Earth Sciences: X 1 100004 2019.6

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DOI： https://doi.org/10.1016/j.jaesx.2018.100004
Enhanced flux of extraterrestrial 3He across the Permian–Triassic boundary Reviewed International journal

Onoue, T., Takahata, N., Miura, M., Sato, H., Ishikawa, A., Soda, K., Sano, Y., Isozaki, Y.

Progress in Earth and Planetary Science 6 ( 1 ) 18 2019.2

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DOI： https://doi.org/10.1186/s40645-019-0267-0
巨大衝突クレーターの掘削—恐竜絶滅の謎に挑む

佐藤峰南，後藤和久，山口耕生，富岡尚敬

科学 89 174 - 179 2019.2

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層状チャートに記録された巨大隕石衝突の地球化学的特徴 Reviewed

佐藤峰南

地質学雑誌 124 983 - 993 2018.12

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Authorship：Lead author,　Corresponding author Language：Japanese Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.5575/geosoc.2018.0059
Extraordinary rocks from the peak ring of the Chicxulub impact crater: P-wave velocity, density, and porosity measurements from IODP/ICDP Expedition 364 Reviewed International coauthorship International journal

Christeson, G.L., Gulick, S.P.S., Morgan, J.V., Gebhardt, C., Kring, D.A., Le Ber, E., Lofi, J., Nixon, C., Poelchau, M., Rae, A.S.P., Rebolledo-Vieyra, M., Riller, U., Schmitt, D.R., Wittmann, A., Bralower, T.J., Chenot, E., Claeys, P., Cockell, C.S., Coolen, M.J.L., Ferrière, L., Green, S., Goto, K., Jones, H., Lowery, C.M., Mellett, C., Ocampo-Torres, R., Perez-Cruz, L., Pickersgill, A.E., Rasmussen, C., Sato, H., Smit, J., Tikoo, S.M., Tomioka, N., Urrutia-Fucugauchi, J., Whalen, M.T., Xiao, L., Yamaguchi, K.E.

Earth and Planetary Science Letters 495 1 - 11 2018.10

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DOI： https://doi.org/10.1016/j.epsl.2018.05.013
Rapid recovery of life at ground zero of the end-Cretaceous mass extinction Reviewed International coauthorship International journal

Lowery, C.M., Bralower, T.J., Owens, J.D., Rodríguez-Tovar, F.J., Jones, H., Smit, J., Whalen, M.T., Claeys, P., Farley, K., Gulick, S.P.S., Morgan, J.V., Green, S., Chenot, E., Christeson, G.L., Cockell, C.S., Coolen, M.J.L., Ferrière, L., Gebhardt, C., Goto, K., Kring, D.A., Lofi, J., Ocampo-Torres, R., Perez-Cruz, L., Pickersgill, A.E., Poelchau, M.H., Rae, A.S.P., Rasmussen, C., Rebolledo-Vieyra, M., Riller, U., Sato, H., Tikoo, S.M., Tomioka, N., Urrutia-Fucugauchi, J., Vellekoop, J., Wittmann, A., Xiao, L., Yamaguchi, K.E., Zylberman, W.

Nature 558 ( 7709 ) 288 - 291 2018.6

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DOI： https://doi.org/10.1038/s41586-018-0163-6
The formation of peak rings in large impact craters Reviewed International coauthorship International journal

Morgan, J.V., Gulick, S.P.S., Bralower, T., Chenot, E., Christeson, G., Claeys, P., Cockell, C., Collins, G.S., Coolen, M.J.L., Ferrière, L., Gebhardt, C., Goto, K., Jones, H., Kring, D.A., Le Ber, E., Lofi, J., Long, X., Lowery, C., Mellett, C., Ocampo-Torres, R., Osinski, G.R., Perez-Cruz, L., Pickersgill, A., Poelchau, M., Rae, A., Rasmussen, C., Rebolledo-Vieyra, M., Riller, U., Sato, H., Schmitt, D.R., Smit, J., Tikoo, S., Tomioka, N., Urrutia-Fucugauchi, J., Whalen, M., Wittmann, A., Yamaguchi, K.E., Zylberman, W.

Science 354 ( 6314 ) 878 - 882 2016.11

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DOI： https://doi.org/10.1126/science.aah6561
Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa Reviewed International journal

Onoue, T., Sato, H., Yamashita, D., Ikehara, M., Yasukawa, K., Fujinaga, K., Kato, Y., Matsuoka, A.

Scientific Reports 6 29609 2016.7

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DOI： https://doi.org/10.1038/srep29609
Sedimentary PGE signatures in the Late Triassic ejecta deposits from Japan: Implications for the identification of impactor Reviewed International journal

Sato, H., Shirai, N., Ebihara, M., Onoue, T., Kiyokawa, S.

Palaeogeography, Palaeoclimatology, Palaeoecology 442 36 - 47 2016.1

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DOI： https://doi.org/10.1016/j.palaeo.2015.11.015
Paleoenvironmental changes across the Carnian/Norian boundary in the Black Bear Ridge section, British Columbia, Canada Reviewed International coauthorship International journal

Onoue, T., Zonneveld, J.-P., Orchard, M.J., Yamashita, M., Yamashita, K., Sato, H., Kusaka, S.

Palaeogeography, Palaeoclimatology, Palaeoecology 441 721 - 733 2016.1

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DOI： https://doi.org/10.1016/j.palaeo.2015.10.008
ジュラ系基底の国際境界模式層序・位置（オーストリア・クーヨッホ） Reviewed

三上禎次，石田啓祐，佐藤峰南，尾上哲治，鈴木寿志

地質学雑誌 121 ( 3 ) I - II 2015.3

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DOI： https://doi.org/10.5575/geosoc.2014.0048
日本の三畳紀・ジュラ紀層状チャートに記録された地球外物質の付加 Reviewed

尾上哲治，佐藤峰南

地質学雑誌 121 91 - 108 2015.3

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DOI： https://doi.org/10.5575/geosoc.2014.0019
北部石灰アルプスのジュラ系とその国際境界模式層序・位置 Reviewed International coauthorship

鈴木寿志，Gawlick, H.-J.，尾上哲治，三上禎次，佐藤峰南，山下大輔，石田啓祐

地質学雑誌 121 83 - 90 2015.3

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DOI： https://doi.org/10.5575/geosoc.2015.0010
巨大隕石の衝突：日本から発見された新たな証拠

佐藤峰南，尾上哲治

科学 83 1321 - 1323 2013.12

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Osmium isotope evidence for a large Late Triassic impact event Reviewed International journal

Sato, H., Onoue, T., Nozaki, T., Suzuki, K.

Nature Communications 4 2455 2013.9

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DOI： https://doi.org/10.1038/ncomms3455
Deep-sea record of impact apparently unrelated to mass extinction in the Late Triassic Reviewed International coauthorship International journal

Onoue, T., Sato, H., Nakamura, T., Noguchi, T., Hidaka, Y., Shirai, N., Ebihara, M., Osawa, T., Hatsukawa, Y., Toh, Y., Koizumi, M., Harada, H., Orchard, M.J., Nedachi, M.

Proceedings of the National Academy of Sciences of the United States of America 109 ( 47 ) 19134 - 19139 2012.11

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DOI： https://doi.org/10.1073/pnas.1209486109
中部日本，美濃帯の上部トリアス系チャートから発見したNiに富むスピネル粒子 Reviewed

佐藤峰南，尾上哲治

地質学雑誌 116 575 - 578 2010.10

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DOI： https://doi.org/10.5575/geosoc.116.575

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Books

最新地学事典

分担執筆（地学団体研究会編）（Role：Joint author）

平凡社 2024.3

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Responsible for pages：2046 p. Language：Japanese Book type：Scholarly book
Guidebook for field excursion, Mino belt: Subduction-generated accretionary complex in central Japan

Sano, H., Kojima, S., Sato, H., Martini, R.（Role：Joint author）

University of Geneva 2013.3

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Responsible for pages：121 p. Language：English Book type：Scholarly book

Presentations

イタリア南部遠洋性堆積物の後期三畳紀ノーリアン/レーティアン境界における統合層序の構築 International coauthorship International conference

⼤森翔太郎，佐藤峰南，元村健⼈，鈴⽊勝彦，⽯川晃，尾上哲治，Bertinelli, A.，Rigo, M.

日本地球惑星科学連合2026年大会 2026.5

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Event date： 2026.5

Language：English Presentation type：Oral presentation (general)

Venue：千葉 Country：Japan
イタリア南部遠洋性堆積物の後期三畳紀ノーリアン/レーティアン境界における統合層序の構築 International coauthorship

⼤森翔太郎，佐藤峰南，元村健⼈，鈴⽊勝彦，⽯川晃，尾上哲治，Bertinelli, A.，Rigo, M.

日本地質学会西日本支部176回例会 2026.2

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Event date： 2026.2

Language：Japanese Presentation type：Oral presentation (general)

Venue：岡山 Country：Japan
UPPER NORIAN (SEVATIAN) RADIOLARIAN AND CONODONT BIOSTRATIGRAPHY IN THE INUYAMA AREA, MINO BELT, CENTRAL JAPAN International coauthorship International conference

Takemura, M., Oshima, A., Sato, H., Rigo, M., Onoue, T.

InterRad XVII 2025 2025.9

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Event date： 2025.9

Language：English Presentation type：Poster presentation

Venue：Firenze Country：Italy
Constraining the depositional model of bedded radiolarian chert using platinum group elements International coauthorship International conference

Sakaguchi, M., Sato, H., Ishikawa, A., Onoue, T.

InterRad XVII 2025 2025.9

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Event date： 2025.9

Language：English Presentation type：Poster presentation

Venue：Firenze Country：Italy
INTEGRATED RADIOLARIAN AND CONODONT BIOSTRATIGRAPHY AND CHEMOSTRATIGRAPHY FROM THE NORIAN-RHAETIAN SUCCESSION IN THE SASSO DI CASTALDA SECTION, LAGONEGRO BASIN, SOUTHERN ITALY International coauthorship International conference

Omori, S., Sato, H., Motomura, K., Onoue, T., Bertinelli, A., Rigo, M.

InterRad XVII 2025 2025.9

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Event date： 2025.9

Language：English Presentation type：Oral presentation (general)

Venue：Firenze Country：Italy
Osmium isotope and highly siderophile element profiles across the Cretaceous/Paleogene boundary in the western Pacific Ocean International coauthorship International conference

Sato, H., Ishikawa, A., Usui, Y., Ohta, J., Kato, Y.

The SGI-SIMP congress 2025 2025.9

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Event date： 2025.9

Language：English Presentation type：Poster presentation

Venue：Padova Country：Italy
δ13C and radiolarian and conodont org biostratigraphic records across the Norian-Rhaetian boundary in the Panthalassic pelagic sections from Japan International coauthorship International conference

Takemura, M., Oshima, A., Tomimatsu, Y., Sato, H., Rigo, M., Onoue, T.

The SGI-SIMP congress 2025 2025.9

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Event date： 2025.9

Language：English Presentation type：Poster presentation

Venue：Padova Country：Italy
Correlation between Norian/Rhaetian boundary and paleoenvironmental events from high-resolution biostratigraphy and chemostratigraphy in the Sasso di Castalda section, Lagonegro Basin, Southern Italy International coauthorship International conference

Omori, S., Sato, H., Motomura, K., Onoue, T., Bertinelli, A., Rigo, M.

The SGI-SIMP congress 2025 2025.9

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Event date： 2025.9

Language：English Presentation type：Poster presentation

Venue：Padova Country：Italy
メキシコ湾のオスミウム同位体⽐変動に記録されたチチュルブクレーター下の熱⽔活動 International coauthorship

佐藤峰南，石川晃，Ignacio Arenillas，José A. Arz，Vicente Gilabert，Philippe Claeys，Steven Goderis，Lowery Christopher，Gulick Sean，Morgan Joanna

日本地質学会西日本支部175回例会 2025.3

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Event date： 2025.3

Language：Japanese Presentation type：Oral presentation (general)

Venue：福岡 Country：Japan
The Pignola-Abriola section (southern Apennines, Italy): a new GSSP candidate for the base of the Rhaetian Stage International coauthorship International conference

Rigo, M., Bertinelli, A., Onoue, T., Sato, H., Tomimatsu, Y., Maron, M., Zaffani, M., Satolli, S., Roghi, G., Nicora, A.

The SGI-SIMP congress 2024 2024.9

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Event date： 2024.9

Language：English Presentation type：Poster presentation

Venue：Bari Country：Italy
Oceanic anoxia during the Carnian Pluvial Episode (Late Triassic) in the Panthalassa Ocean International coauthorship International conference

Tomimatsu, Y., Onoue, T., Sato, H., Rigo, M.

The SGI-SIMP congress 2024 2024.9

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Event date： 2024.9

Language：English Presentation type：Poster presentation

Venue：Bari Country：Italy
Geochemical studies across the Norian/Rhaetian boundary in the Pignola-Abriola section of the Lagonegro Basin, southern Italy International coauthorship International conference

Akaki, M., Sato, H., Onoue, T., Maron, M., Ishikawa, A., Rigo, M.

The SGI-SIMP congress 2024 2024.9

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Event date： 2024.9

Language：English Presentation type：Poster presentation

Venue：Bari Country：Italy
High-resolution radiolarian biostratigraphy across the impact ejecta layer in the upper Norian hemipelagic sediments in the Sasso di Castalda section, southern Italy International coauthorship International conference

Omori, S., Sato, H., Onoue, T., Rigo, M.

The SGI-SIMP congress 2024 2024.9

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Event date： 2024.9

Language：English Presentation type：Poster presentation

Venue：Bari Country：Italy
Weathering trends in the Norian through geochemical and rock magnetic analyses from the Pignola-Abriola Section (Lagonegro Basin, Italy) International coauthorship International conference

Maron, M., Onoue, T., Satolli, S., Soda, K., Sato, H., Muttoni, G., Rigo, M.

The SGI-SIMP congress 2024 2024.9

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Event date： 2024.9

Language：English Presentation type：Poster presentation

Venue：Bari Country：Italy
Post-impact marine environment within the Chicxulub impact basin inferred from Re-Os isotopes International coauthorship International conference

Sato, H., Ishikawa, A., Lowery, C.M., Arenillas, I., Arz, J.A., Gilabert, V., Claeys, P., Goderis, S., Gulick, S.P.S., Morgan, J.V.

The SGI-SIMP congress 2024 2024.9

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Event date： 2024.9

Language：English Presentation type：Oral presentation (general)

Venue：Bari Country：Italy
アメリカ合衆国に分布するK-Pg境界層のイリジウムと他元素の濃度

佐野貴司，石本光憲，佐藤峰南，石川晃

日本地球惑星科学連合2026年大会 2024.9

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Event date： 2024.9

Language：English Presentation type：Oral presentation (general)

Venue：金沢 Country：Japan
Drilling the Rochechouart impact structure: Direct insights on the impact-induced processes leading to melt-rich impactites International coauthorship International conference

Faucher, J., Luais, B., Sato, H., Debaille, V., Goderis, S.

86th Annual Meetings of the Meteoritical Society 2024.8

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Event date： 2024.7 - 2024.8

Language：English Presentation type：Oral presentation (general)

Venue：Brussels Country：Belgium
Perturbation of the Re-Os system for up to 700 kyr in the Gulf of Mexico after the Chicxulub impact International coauthorship International conference

Sato, H., Ishikawa, A., Lowery, C.M., Arenillas, I., Arz, J.A., Gilabert, V., Claeys, P., Goderis, S., Gulick, S.P.S., Morgan, J.V.

86th Annual Meetings of the Meteoritical Society 2024.8

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Event date： 2024.7 - 2024.8

Language：English Presentation type：Poster presentation

Venue：Brussels Country：Belgium
イタリア南部上部三畳系遠洋性堆積物におけるロシュシュアールクレーター起源イジェクタ層の発見 International coauthorship

大森翔太郎，佐藤峰南，尾上哲治，Rigo Manuel

日本地球惑星科学連合2024年大会 2024.5

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Event date： 2024.5

Language：Japanese Presentation type：Poster presentation

Venue：福岡 Country：Japan
チチュルブクレーター内の古第三紀石灰岩中に記録されたオスミウム同位体比変動 International coauthorship

佐藤峰南，石川晃，Lowery Christopher，Gulick Sean，Morgan Joanna

日本地質学会第130回学術大会 2023.9

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Event date： 2023.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：京都 Country：Japan
後期三畳紀カーニアン多雨事象におけるパンサラッサ海の海洋無酸素化と遠洋性生物応答 International coauthorship

冨松由希，野崎達生，尾上哲治，松本廣直，佐藤峰南，高谷雄太郎，木村純一，常青，Rigo Manuel

日本地質学会第130回学術大会 2023.9

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Event date： 2023.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：京都 Country：Japan
Early Paleocene Os isotope stratigraphy within the Chicxulub impact basin International conference

Sato, H., Ishikawa, A., Lowery, C.M., Gulick, S.P.S., Morgan, J.V.

4th International Congress on Stratigraphy strati 2023 2023.7

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Event date： 2023.7

Language：English Presentation type：Oral presentation (general)

Venue：Lille Country：France
Is lunar dust producing the late Eocene 3He anomaly, 36 Ma ago? New insights from extraterrestrial 3He in iridium poor marine sediments International conference

Fritz, J., Blard, P.-H., Sato, H., Ishikawa, A., Goderis, S.

2023 Goldschmidt Conference 2023.7

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Event date： 2023.7

Language：English Presentation type：Oral presentation (general)

Venue：Lyon Country：France
Re-Os isotope record in the Paleocene limestone of the Chicxulub impact basin International coauthorship International conference

Sato, H., Ishikawa, A., Lowery C.M., Gulick, S.P.S., Morgan, J.V.

5th International Geoscience Symposium “Precambrian World 2023” 2023.3

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Event date： 2023.3

Language：English

Venue：Kochi Country：Japan
イタリア南部の後期三畳紀ノーリアン/レーティアン境界における強親鉄性元素およびオスミウム同位体比変動 International coauthorship

佐藤峰南，石川晃，冨松由希，尾上哲治，Rigo Manuel

日本地質学会第129回学術大会 2022.9

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Event date： 2022.9

Language：Japanese

Venue：東京 Country：Japan
Radiolarian responses to the Norian “chaotic carbon episode” in the Panthalassa International coauthorship International conference

Onoue, T., Tomimatsu, Y., Sato, H., Rigo, M.

Proceedings of 16th InterRad 2022.9

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Event date： 2022.9

Language：English

Venue：Ljubljana Country：Slovenia
Conodonts from the Norian/Rhaetian boundary to the Hettangian: How long did they survive in the Jurassic for? International coauthorship International conference

Rigo, M., Tomimatsu, Y., Sato, H., Onoue, T.

Jurassic 2022 Congress 2022.9

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Event date： 2022.8 - 2022.9

Language：Japanese

Venue：Budapest Country：Hungary
Increased weathering and anoxic conditions in the late Norian-early Rhaetian interval from rock magnetism and geochemistry of Pignola-Abriola (Italy) and Kiritihere (New Zealand) sections International coauthorship International conference

Maron, M., Onoue, T., Satolli, S., Soda, K., Sato, H., Muttoni, G., Rigo, M.

17th “Castle Meeting” on Palaeo, Rock and Environmental Magnetism 2022.9

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Event date： 2022.8 - 2022.9

Language：English

Venue：Trakošćan Country：Croatia
Highly siderophile elements and Os isotope stratigraphy across the Norian/Rhaetian boundary in the Lagonegro Basin, southern Italy International coauthorship International conference

Sato, H., Ishikawa, A., Tomimatsu, Y., Onoue, T., Rigo, M.

2022 Goldschmidt Conference 2022.7

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Event date： 2022.7

Language：English

Venue：Hawaii Country：United States
Biotic extinction at the Norian/Rhaetian boundary (Upper Triassic): geochemical and isotope evidence of a previously unrecognised global event International coauthorship International conference

Rigo, M., Onoue, T., Sato, H., Tomimatsu, Y., Soda, K., Godfrey, L., Katz, M., Campbell, L., Tackett, L., Golding, M., Lei, J., Husson, J., Maron, M., Satolli, S., Zaffani, M., Concheri, G., Bertinelli, A., Chiari, M., Tanner, L.

2022 Goldschmidt Conference 2022.7

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Event date： 2022.7

Language：English

Venue：Hawaii Country：United States

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Professional Memberships

日本地質学会
日本地球化学会

Academic Activities

Screening of academic papers

Role(s)： Peer review

2025

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Type：Peer review

Number of peer-reviewed articles in Japanese journals：1
Screening of academic papers

Role(s)： Peer review

2024

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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

2023

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Type：Peer review

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

Number of peer-reviewed articles in Japanese journals：1

Research Projects

遠洋性堆積岩から探る宇宙物質流入が地球表層環境に及ぼす影響の解明

Grant number：25H00695 2025.4 - 2030.3

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

尾上哲治, 佐藤峰南, 冨松由希, 山下勝行, 高畑直人

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

地球へ流入した宇宙塵は、中間圏-成層圏エアロゾルの凝結核形成、成層圏の硫酸塩・オゾン除去、海洋生態系への鉄供給といった、グローバルな地球表層環境の変化をもたらす。そのため宇宙塵フラックス（流入量）の増減が、数万年から百万年スケールの気候変動や生物活動に変化をもたらしてきた可能性があるが、その実態についてはこれまで解明されていない。そこで本研究では、世界中から集められた遠洋性堆積岩を用いて、過去3億年間の宇宙塵フラックスを復元し、それらの変動が大気、海洋、生命環境にどのような影響を与えてきたのかを解明する。

CiNii Research
白金族元素から復元する宇宙物質流入量変動史

Grant number：25K01100 2025.4 - 2028.3

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

佐藤峰南, 石川晃, 尾上哲治

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Authorship：Principal investigator Grant type：Scientific research funding

近年，宇宙塵大量流入イベントが地球表層環境変動を引き起こした可能性が指摘されているが，地球へ飛来する宇宙塵の流入量変動を定量的に見積もる手法は確立されていない．そこで本研究では，宇宙線照射に伴う中性子捕獲反応により変動する白金族元素の安定同位体をトレーサーとして，堆積物中から宇宙塵流入履歴を見積もる新しい手法を開発する．また，宇宙物質混入率に鋭敏なオスミウム同位体比および白金族元素組成データを組み合わせることにより，過去の地球に飛来した宇宙塵から巨大隕石に至る全ての宇宙物質の流入量がどのように変動したかについて，高解像度で解読することを目指す．

CiNii Research
Investigating the origin of large projectiles by micro-sampling in the impact ejecta International coauthorship

Grant number：23KK0066 2023 - 2026

Grants-in-Aid for Scientific Research International Collaborative Research

佐藤峰南, 石川晃, 中西奈央

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Authorship：Principal investigator Grant type：Scientific research funding

巨大天体衝突によって供給された宇宙物質の化学的痕跡は，地球由来物質との混合によって希釈され，衝突天体の起源を厳密に決定することは極めて難しい．そのため本研究では，ミリグラムレベルでの微小試料から衝突物質の混入率とその起源を同時に求める新たな地球化学的分析法を確立する．特に，ブリュッセル自由大学との共同研究を推進し，宇宙物質を高濃度で含む世界各地の衝突イジェクタ層を対象として，強親鉄性元素組成・オスミウムおよびクロム同位体比データを同一試料から取得する．これにより，地球史を通じて飛来してきた宇宙物質の起源を明らかにし，天体衝突と生命進化・絶滅の関連性を解読する研究へと発展させる．

CiNii Research
多元素同時分析法による白亜紀末巨大衝突天体の起源推定

2023 - 2024

木下基礎科学研究基金助成

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Authorship：Principal investigator Grant type：Contract research
衝突イジェクタを用いた多元素同時分析による衝突天体の解明

2023 - 2024

令和5（2023）年度理学研究院若手支援令和1号資金支援

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Authorship：Principal investigator Grant type：On-campus funds, funds, etc.
Probing the extraterrestrial fluxes using stable isotope analyses of platinum group elements

Grant number：20K04113 2021 - 2024

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

Sato Honami

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Authorship：Principal investigator Grant type：Scientific research funding

In this study, we conducted a stable isotope analysis of osmium using sediment samples obtained from the Permian/Triassic boundary, the Late Triassic, and the Cretaceous/Paleogene boundary. While we did not detect osmium stable isotope anomalies indicating an influx of cosmic dust, our analyses of osmium isotope and platinum group element concentrations revealed an increase in the influx of extraterrestrial material in all of our samples. Notably, we commonly observed a gradual decrease in osmium isotope ratios below the impact ejecta layers, which suggests an increase in cosmic dust influx prior to large impact events.

CiNii Research
Cosmic dust flux on Earth during the Phanerozoic and its global environmental impact

Grant number：20H00203 2020 - 2024

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

Onoue Tetsuji

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

During the Phanerozoic, there were sudden increases in the cosmic dust flux to Earth, and a correlation between these events and mass extinctions has been suggested. However, the causes of these increases and their impact on the global environment remain poorly understood. This study used helium (He) isotope analysis to conduct basic research and reconstruct the cosmic dust flux during the Mesozoic, as well as to decipher the environmental changes caused by massive influxes of cosmic dust. As a result, we reconstructed the temporal variation of the extraterrestrial 3He flux over approximately 80 million years, from the Asselian stage of the early Permian to the Norian stage of the Late Triassic.

CiNii Research
マントル捕獲岩から探るマントルプルームの構成物質とその上昇源

Grant number：19H01998 2019 - 2021

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

石川晃, 横山哲也, 角野浩史, 佐藤峰南, 渡慶次聡

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

本研究では、海洋島に産するかんらん岩捕獲岩とプレート境界に露出するかんらん岩の間に、地球深部と浅部における化学組成や同位体組成の違いが反映されている可能性を探る。そのため、両者の主要・微量元素濃度、強親鉄性元素濃度、オスミウム同位体比、希ガス同位体比の系統的データを比較することにより、地球深部に由来するマントルプルームの化学的特徴を検討し、プルーム上昇源の形成進化モデルを構築することを目指す。

CiNii Research
後期三畳紀隕石衝突が引き起こした全球的環境変動の解明

Grant number：17K14409 2017 - 2020

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
堆積速度の遅いレアアース泥を用いた未知の海洋隕石衝突イベント検出への挑戦

Grant number：16K13895 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
中生代における隕石衝突記録と環境変動の解明

Grant number：15J30004 2015 - 2017

Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for JSPS Fellows

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Authorship：Principal investigator Grant type：Scientific research funding
三畳紀における天体衝突現象と地球環境変動のリンク

Grant number：12J01374 2012 - 2014

Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for JSPS Fellows

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Authorship：Principal investigator Grant type：Scientific research funding
遠洋性チャートに記録された三畳紀新世天体衝突イベントの解明

2011

笹川科学研究助成学術研究部門

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Authorship：Principal investigator Grant type：Contract research

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Educational Activities

巨大天体衝突による環境変動や、衝突による物質の拡散過程に関する研究テーマについて、野外での試料採取・岩相記載、地球化学分析を主軸とした指導を行っています。

Class subject

地球惑星科学実験Ⅱ（堆積学実験）

2026.4 - 2026.9 First semester
地球惑星科学実習Ⅱ

2026.2 Second semester
地球惑星生物環境実験

2025.10 - 2026.3 Second semester
地球惑星科学実習Ⅲ

2025.9 First semester
地球惑星科学IB

2025.6 - 2025.8 First semester
地球惑星科学実験Ⅱ（堆積学実験）

2025.4 - 2025.9 First semester
九州大学で学ぶ宇宙科学と技術A

2025.4 - 2025.9 First semester
地球惑星科学実習Ⅱ

2025.2 Second semester
地球惑星科学ⅡB

2024.12 - 2025.2 Winter quarter
地球惑星科学実習Ⅲ

2024.9 First semester
地球惑星科学実験Ⅱ（堆積学実験）

2024.4 - 2024.9 First semester
九州大学で学ぶ宇宙科学と技術A

2024.4 - 2024.9 First semester
地球惑星科学特別演習Ⅱ

2024.3 Winter quarter
地球惑星科学実習Ⅱ

2024.2 Second semester
基礎科学実習

2023.12 - 2024.2 Winter quarter
地球惑星生物環境実験

2023.10 - 2024.3 Second semester
地球惑星科学実習Ⅲ

2023.9 First semester
地球惑星科学IB

2023.6 - 2023.8 First semester
地球惑星科学実験Ⅱ（堆積学実験）

2023.4 - 2023.9 First semester
九州大学で学ぶ宇宙科学と技術B

2023.4 - 2023.9 First semester
地球惑星科学ⅡB

2022.12 - 2023.2 Winter quarter
基礎科学実習

2022.12 - 2023.2 Winter quarter
基礎科学実習

2024.12 - 2025.2 Winter quarter
地球惑星生物環境実験

2024.10 - 2025.3 Second semester
地球惑星科学特別演習Ⅱ

2024.10 - 2025.3 Second semester
地球惑星科学特別研究Ⅰ（１年）

2024.4 - 2025.3 Full year

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FD Participation

2022.4 Role：Participation Title：令和４年度第１回全学ＦＤ（新任教員の研修）The 1st All-University FD (training for new faculty members) in FY2022

Organizer：University-wide

Social Activities

白亜紀末の恐竜絶滅を引き起こした天体衝突の痕跡と生態系回復の軌跡

Role(s)：Lecturer

九州大学アジア・オセアニア研究教育機構ブラウンバッグセミナー 2026.5

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Audience：College students,　Graduate students,　Researchesrs,　General

Type：Seminar, workshop
天体衝突がもたらす環境変化を、地層から探るー三畳紀や白亜紀の地層から隕石衝突の証拠を発見ー

Role(s)：Media coverage

国立科学博物館自然と科学の情報誌 milsil 2026.3

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Audience：Schoolchildren,　Junior students,　High school students,　College students,　Graduate students,　Teachers,　Guardians,　Researchesrs,　General

Type：Newspaper, magazine
小惑星衝突による恐竜絶滅と生命進化ー地層に刻まれた過去からのメッセージー

Role(s)：Lecturer

九州大学九州大学アカデミックフェスティバル&ホームカミングデー2025 2025.11

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Audience：General

Type：Lecture
K/Pgクレーター掘削ー白亜紀末の大絶滅を引き起こした隕石衝突の痕跡と生命進化ー

Role(s)：Lecturer

J-DESC 市民講演会 2025.11

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Audience：Schoolchildren,　Junior students,　High school students,　College students,　Graduate students,　General

Type：Lecture
地層に刻まれた天体衝突～生命進化の原動力？～

Role(s)：Appearance,　Media coverage,　Lecturer

株式会社フロムページ夢ナビ講義・夢ナビライブ2024 2024.6 - 2024.10

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Audience：High school students

Type：Visiting lecture
生物絶滅規模の天体衝突の痕跡から環境変動メカニズムを解読する

Role(s)：Appearance,　Media coverage

九州大学 Discover the Research Vol.4 2024.3

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Audience：Schoolchildren,　Junior students,　High school students,　College students,　Graduate students,　Teachers,　Guardians,　Researchesrs,　General,　Scientific,　Civic organization

Type：Internet
「自然に学ぶみんなの学校 in 新潟妙高ーむし・ほし・いしの自然体験学習ー」講師

Role(s)：Lecturer

ヒューリック株式会社・東京大学工学系研究科社会連携講座「真にインクルーシブな自然体験学習システムの創成」主催 2023.8

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Audience：Infants,　Schoolchildren,　Junior students,　High school students

Type：Seminar, workshop
宇宙物質流入と地球生命史

Role(s)：Contribution

九大理学部ニュース 2023.7

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Audience：High school students,　College students,　Graduate students,　Guardians,　General

Type：Promotional material
恐竜時代の巨大天体衝突

Role(s)：Lecturer

九大祭特別講義 2022.11

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Audience：High school students,　College students,　Graduate students,　Guardians,　General

Type：Lecture
堆積物から読み解く小惑星衝突の痕跡

Role(s)：Lecturer

九州大学オープンキャンパス模擬授業・研究紹介 2022.8

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Audience：High school students,　College students,　Graduate students,　Guardians,　General

Type：Lecture

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Media Coverage

海の生態系熱水で急回復 Newspaper, magazine

読売新聞 2025.5

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Author：Other
小惑星衝突が海に栄養塩 6600万年前、九大など解明 Newspaper, magazine

日経新聞 2025.4

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Author：Other
6600万年前生態系急速回復熱水活動が栄養塩供給 Newspaper, magazine

日刊工業新聞 2025.4

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Author：Other

Travel Abroad

2024.7 - 2024.8

Staying countory name 1：Belgium Staying institution name 1：Vrije Universiteit Brussel

Staying countory name 2：Spain Staying institution name 2：Universidad de Zaragoza
2020.11 - 2022.3

Staying countory name 1：Italy Staying institution name 1：University of Padova