太古代の海底表層堆積層の変化と環境変動
アフリカ・オーストラリア・カナダターゲット
キーワード：Black Chert, BIF
2006.04～2017.03.

新原生代の海底環境復元:
エジプトにおける黒色頁岩および鉄鉱層が持つ層序変化． 雪玉仮説vs大陸分裂説
キーワード：原生代，大酸化事変，雪玉地球
2013.04～2020.03.

五島列島の構造発達史：層序復元と形成史
キーワード：五島層群，　日本海拡大， 1700万年前のアジア島弧について
2003.06～2024.06.

古ｰ中原生代の海底環境復元:
ガーナ，カナダにおける黒色頁岩および鉄鉱層が持つ層序変化．
キーワード：原生代，大酸化事変, 大陸衝突/分裂
2013.04～2022.03.

縞状鉄鉱層の形成メカニズム：モダンアナロジーからの復元，　薩摩硫黄島の例．
キーワード：BIF，　鉄沈殿物，熱水作用
2004.09～2022.12.

バクテリア活動に関連する酸化鉄沈殿メカニズムによる人工鉄沈降・鉄分離技術の開発
キーワード：BIF，　鉄沈殿物，熱水作用
2007.07～2016.12.

東チモールの構造発達史と層序変遷
キーワード：テチス海， P-T 境界,付加体
2018.06～2022.03.

鬼界カルデラの形成過程
キーワード：カルデラ　破局噴火
2010.04～2013.04.

太古代の表層環境（熱水系と生物活動）
キーワード：黒色チャート，熱水系，グリーンストーン帯，太古代
2000.03～2016.12.

九州西部ー東シナ海にかけてのテクトニクス
（西南日本のユーラシアからの分裂と背弧海盆のイニシエーション）
キーワード：白亜紀、第三紀、沖縄トラフ、日本海拡大、別府島原地溝帯
2002.04～2007.12.

K-Pg境界の地質　隕石衝突にともなう地質現象
キーワード：KT境界、衝撃石英、スフェルール、キューバ、ユカタン半島, ベリーズ
1997.08～2005.12.

五島列島形成史復元　（ジオパーク発展プロジェクト）
2020.06～2020.06, 代表者：清川昌一, 九州大学地球惑星科学, 五島市（日本）上五島町（日本）
五島列島をジオパークにするための準備プロジェクト．　大地の歴史をしっかりと明らかにする．.

ジオカレッジ地方創生プロジェクト
2021.12～2026.06, 代表者：清川昌一, 九州大学地球惑星科学, 東かがわ市，
ジオサイエンスや自然を利用した，地方創生プロジェクト，大地や田んぼを利用した地域住民や子どもたちに自然を学んでもらうシステムの構築.

DXCL2 : Dixon Island - Cleaverville drilling project 2
2010.04～2013.03, 代表者：清川昌一, 九州大学, 日本
DXCL2 掘削計画では，32億年前の縞状鉄鉱層　クリバービル縞状鉄鉱層をほりぬく．当時の表層環境と大酸化作用以前の縞状鉄鉱層の形成メカニズムを明らかにする．.

カナダ　18.9億年前のトランスハドソン帯における海底環境復元（フリンフロン帯・ケープスミス帯）
2016.05～2020.03, 代表者：清川昌一, 九州大学地球惑星科学
カナダトランスハドソン地域における大陸棚から海洋底にかけての有機物に富む堆積物について，層序および新鮮なコア試料をしゅとくすることで，当時のユーキシニックと言われる海洋状態の復元を試みる．.

鬼界カルデラ　海底熱水と鉄沈殿作用の解明
2017.05～2020.03, 代表者：清川昌一, 清川昌一, 三島村
鬼界カルデラの解明を軸に，薩摩硫黄島に分布する熱水噴出と鉄沈殿作用について，長期観測をおこない火山活動および初期地球環境についてのモダンアナロジーを明らかにする．.

GHB計画( 古原生代　海底環境復元　ガーナ　ベリミアン掘削計画）
2014.03～2020.03, 代表者：清川昌一, 九州大学, 九州大学地球惑星科学（日本）
原生代の深海底堆積物を詳細に地質調査し，地質図，断面図，柱状図を作成することで，当時の海洋底の復元をおこなう．また陸上掘削をおこない新鮮なコア試料を取得する．.

鬼界カルデラ地形調査
2019.04～2019.06, 代表者：清川昌一, 九州大学, 地球惑星科学
7300年前の噴火した鬼界カルデラ地形調査をおこない，カルデラ噴火が周辺部や海底にどのような影響をもたらしたか明らかにする．.

鬼界カルデラ　ジェオパーク構想
2011.05～2015.03, 代表者：清川昌一, 清川昌一, 三島村
鬼界カルデラの解明を軸に，薩摩硫黄島の火山活動やサンゴを軸にジェオパーク構想を展開中.

顕生代の鉄鉱層　砂漠に残る鉄鉱層の解明
2013.05～2013.05, 代表者：清川昌一, 九州大学, 日本・エジプト.

ICDP バーバートングリーンストーン掘削
2010.04～2012.04, 代表者：Nick Arndt, フランス, フランス，南アフリカ
IDCPバーバートン掘削により，35−32億年前の海底堆積物・地殻をほりぬく．.

現在の海における鉄鉱床形成を模した人工鉄沈降・鉄分離技術の開発
2008.03, 代表者：清川昌一, 九州大学, 九州大学（日本）
熱水性鉄沈殿物とバクテリア活動との関連を明らかにし，鉄鉱床の形成メカニズムを解く．.

Restored project of the Archean-Proterozoic ocean floor environment
2006.10, 代表者：Shoichi Kiyokawa, 九州大学, 九州大学（日本）
太古代と原生代における海洋底堆積物を探し，その柱状図，速報変化，地域変化をアフリカとオーストラリア，カナダにて対比して，太古代から原生代へどのような環境変化が地球上で起こっていたかを復元する．.

Project A　DX-Cleaverville Driling
2006.06, 代表者：清川昌一, 九州大学, Japan
３２億年前の海底堆積物の掘削:西オーストラリアピルバラ海岸グリーンストーン帯.

The Archean Biosphere Drilling Project (ABDP)
2003.04, 代表者：根建心具, 鹿児島大学理学部, 日本・アメリカ・オーストラリア
太古代生命圏ボーリング計画.

主要著書

1.	共著 日本微生物生態学会（編）　, 環境と微生物の辞典, 朝倉書店, 159-169, PP432, 2014.06.
2.	清川 昌一, 伊藤孝, 池原実, 尾上哲治, 地球全史スーパー年表, 岩波書店, 24p および　年表（Ｂ２サイズ）, 2014.02, [URL], 宇宙誕生から現在までを１０つのレンズで年代分けして，地球の歴史を現在まで示した解説書付き年表.
3.	清川 昌一, 地球全史　写真が語る46億年の奇跡, 190p, 2012.01, [URL], 地球46億年の歴史を，白尾・清川で歩き回り，実際の地球上の証拠とともに地球史をわかりやすくビジュアルに述べた一般書．地球46億年を冥王代，太古代，原生代，顕生代（古生代，中生代，新生代）と区分しその時代を代表する迫力ある写真とわかりやすい歴史説明により46億年の地球の歴史を振り返り，2011年の震災後の未来の地球の行く方向を考えさせる．.
4.	清川昌一、平朝彦, 地球進化論, 岩波書店, 第13巻 　地球進化論　第３章 造山帯と大陸の成長、第７章 テクトニクスと地球環境の変, 1998.01.

主要原著論文

1.	Kento Motomura, Shoichi Kiyokawa, Minoru Ikehara, Takashi Sano, Wouter Bleeker, Kentaro Tanaka, Tsubasa Miki, Yuji Sano., Redox fluctuation and δ13Corg-δ34S perturbations recorded in the 1.9 Ga Nuvilik Formation of the Cape Smith belt, Canada., Precambrian Research, https://doi.org/10.1016/j.precamres.2021.106191, 359, 1-12, 2021.02.
2.	Shoichi Kiyokawa, Takashi Kuratomi, Tatsuhiko Hoshino, Shusaku Goto, Minoru Ikehara, Hydrothermal formation of iron-oxyhydroxide chimney mounds in a shallow semi-enclosed bay at Satsuma Iwo-Jima Island, Kagoshima, Japan, Geological Society of America Bulletin, https://doi .org/10.1130/B35782.1., 133, 9-10, 1890-1908, 2021.09, Hydrothermal iron-oxyhydroxide chimney mounds (iron mounds) have been discovered in a fishing port in Nagahama Bay, located on the southwest coast of Satsuma Iwo-Jima Island, south of Kyushu Island, Japan. In the fishing port uncovered ~1.0 m-high iron mounds in shallow waters formed under relatively calm conditions. Typically, the fishing port has orange-colored turbid waters that mix with outer ocean waters during high tide. Colloidal iron-oxyhydroxides form due to the oxidation of ferrous iron in hydrothermal waters (pH = 5.5; temperature = 55°C) as they mix with seawater. The mounds are made of two types of material: hard, dark brown-orange, high-density material; and soft, brownish orange-yellow, low-density material. Computed Tomography (CT) scans of the harder iron mound material reveal a cabbage-like structure comprising micro-pipe structures with diameters of 2–5 mm. These micro-pipes have relatively hard walls made of iron oxyhydroxides (FeOH) and are identified as discharge pipes. Nucleic acid staining genetic sequencing and SEM observations suggest that the mounds formed mainly from bacterial stalks with high concentrations of FeOH colloidal matter. In the harder parts of the mounds, these ‘fat stalks’, which contain oxyhydroxide colloidal aggregates, are entwined and concentrated. The softer material contains twisted stalk-like structures, which are coated with FeOH colloidal particles. DNA examination of the iron mounds reveals the presence of iron oxidizing bacteria, especially at the mound surface. We estimate that the iron mounds accumulated at a rate of ~1,700 tons/1000 m2/year. This is an order of magnitude higher than the rate of FeOH sedimentation via chemical precipitation of FeOH colloids within the fishing port. This suggests that biogenic activity, resulting in the production of entwined FeOH stalks, leads to the rapid accumulation of FeOH beds and that biogenic activity within the water mass rich in FeOH colloids is an efficient means of generating thick iron-rich sedimentary sequences. As such, we propose that some ancient iron formations may have also formed through the biogenic production of FeOH stalks rather than solely through chemical sedimentation in a water mass rich in FeOH colloids. It appears that these rapidly forming biogenic FeOH iron mounds distributed wide area of ocean floor are also relatively protected from erosion and diagenetic alteration (reduction). Previous studies have reported that ancient iron formations were commonly deposited in deeper environments via direct iron oxidation from the water column in ferruginous ocean; however, There are several hydrothermal vents inflows preserved with FeOH that would have formed appropriate redox boundary conditions in an otherwise anoxic ocean. Under these conditions, iron mound mat-type sedimentary deposits might have formed and been well-preserved and affected by early diagenesis where higher heat flow occurred in the Archean ocean. The FeOH mounds in Nagahama bay shows an example of the iron formation sedimentary environment and leaves important information for estimating the past depositional state of iron formations..
3.	Kosuke T. Goto, Yasuhito Sekine, Takashi Ito, Katsuhiko Suzuki, Ariel D. Anbar, Gwyneth W. Gordon, Yumiko Harigane, Teruyuki Maruoka, Gen Shimoda, Teruhiko Kashiwabara, Yutaro Takaya , Tatsuo Nozaki, James R. Hein. George M. Tetteh, Frank K. Nyame, Shoichi Kiyokawa, Progressive ocean oxygenation at ~2.2 Ga inferred from geochemistry and molybdenum isotopes of the Nsuta Mn deposit, Ghana, Chemical Geology, https://doi.org/10.1016/j.chemgeo.2021.120116, 567, 120116, 2020.07.
4.	Shoichi Kiyokawa, Thematic section: Special topics in 4th IGS ‘Precambrian World 2’, Island Arc, DOI: 10.1111/iar.12360, e12360, 1-4, 2020.05.
5.	Maekawa, T., Kiyokawa, S., Maeda, H., Tanaka, G., Costa, J. E. F., and Freitas, A. T., First report of early Permian albaillellarian radiolarians from East Timor, Paleontological Research, doi:10.2517/2020PR009., 25, 1, 32-40, 2020.05.
6.	Shoichi Kiyokawa, Taishi Suzuki, Hanaa Abdenaby El-Dokouny, Maher Dawoud, Mohamed Mahmoud Abuelhasan,, Tectonic and sedimentary history of the neoproterozoic metavolcanic–volcaniclastic rocks of the El-Dabbah Group, Central Eastern Desert, Egypt., Journal of African Earth Sciences, https://doi.org/10.1016/j.jafrearsci.2020.103807, 165, 1-17, 2020.03.
7.	Shoichi Kiyokawa, Taishi Suzuki, Kenji Horie, Mami Takehara, Hanna A. El-Dokouny, Maher Dawoud, Mohamed M. Abuelhasan,, Stratigraphy, petrology, and geochemistry of a Neoproterozoic banded iron sequence in the El-Dabbah Group, Central Eastern Desert, Egypt., Journal of African Earth Sciences, https://doi.org/10.1016/j.jafrearsci.2020.103807, 165, 1-16, 2020.02.
8.	Kento Motomura, Shoichi Kiyokawa, Minoru Ikehara, Kentaro Tanaka, Yuji Sano, Geochemical constraints on the depositinal environment of the 1.84 Ga Embury Late Formation, Flin Flon Belt, Canada., Island arc, DOI: 10.1111/iar.12324, 334, 105475, 1-11, 2020.02.
9.	Shoichi Kiyokawa, Yuhei Aihara, Mami Takehara, Kenji Horie, Timing and development of sedimentation of the Cleaverville Formation and a post-accretion pull-apart system in the Cleaverville area, coastal Pilbara Terrane, Pilbara, Western Australia, Island arc, DOI: 10.1111/iar.12324, 334, 105475, 1-23, 2019.10.
10.	Tsutomu Ota, Yuhei Aihara, Shoichi Kiyokawa, Ryoji Tanaka, Eizo Nakamura,, Tourmaline in a Mesoarchean pelagic hydrothermal system: Implications for the habitat of early life., Precambrian Research, 10.1111/ iar.12182, 334, 105475, 1-17, 2019.10.
11.	鈴木大志・清川昌一・伊藤孝, 縞状鉄鉱層のEPMA 元素マッピング：エジプト東砂漠地帯エルダバァ層鉄鉱層と他地域の鉄鉱層との比較．, 茨城大学教育学部紀要（自然科学）， 第67号，, 第67号, 57-76, 2018.07, [URL].
12.	元村健人・清川昌一．伊藤孝・Dave PRICE, 19 億年前の深海底堆積岩の特徴：カナダ・フリンフロン帯における掘削コアTS07-01 の岩石記載－3, 茨城大学教育学部紀要（自然科学）， 第67号，, 第67号, 57-76, 2017.07, [URL].
13.	鈴木大志・清川昌一・伊藤孝, 縞状鉄鉱層のEPMA 元素マッピング：エジプト東砂漠地帯エルダバァ層鉄鉱層と他地域の鉄鉱層との比較．, 茨城大学教育学部紀要（自然科学）， 第67号，, 第67号, 37-55, 2017.07, [URL].
14.	吉丸　慧・清川昌一・伊藤　孝・堤　之恭, ブラジル中原生代の鉄鉱層: Espinhaço超層群Itapanhoacanga Formationの岩相層序と砕屑性ジルコンU-Pb年代について, 茨城大学教育学部紀要（自然科学）， 第66号，, 第66号, 77-92, 2016.04, [URL].
15.	Takehara M, Horie K, Tani K, Yoshida T, Hokada T, Kiyokawa S, Timescale of magma chamber processes revealed by U-Pb ages, trace element contents and morphology of zircons from the Ishizuchi caldera, Southwest Japan Arc, The Island Arc, 10.1111/ iar.12182, 1-14, e12182, 2017.10.
16.	Golozubov V.V., Kasatkin S.A., Yokoyama K., Tsutsumi Y., and Kiyokawa S.,, Miocene Dislocations during the Formation of the Sea of Japan Basin: Case Study of Tsushima Island., Geotectonics,, 51, 4, 412-427, 2017.06.
17.	佐藤　峰南, 白井直樹, 海老原充, 尾上哲治, 清川 昌一, Sedimentary PGE signatures in the Late Triassic ejecta deposits from Japan: Implications for the identification of impactor., Palaeogeography, Palaeoclimatology, Palaeoecology,, doi:10.1016/j.palaeo.2015.11.015, ４４２, １５, 145-154, 2015.11.
18.	倉冨　隆, 清川 昌一, 鉄酸化バクテリアが関与した熱水環境の鉄酸化堆積物, 地球科学, 69, 3, 145-154, 2015.06, Iron oxide deposits were often associated with iron oxidizing bacteria that get energy from oxidizing ferrous ion. These bacteria accelerate iron oxidizing by excreting unique organic structures that adsorb ferrihydrites. They form mat-like ferrihydrites in iron-rich hydrothermal environments of different depths of the oceans around the world. The process in the microbial mat associated with the modern hydrothermal activity can be regarded as a type of the biomineralization. Comparisons in iron oxide fabrics and bacterial habits in different hydrothermal settings improve our understanding for the formational mechanisms of iron oxides, including a wide range of ancient deposits, such as the Precambrian banded iron formations (BIFs) and oolitic iron ore. Previous studies have linked the BIFs with the long-term global environment changes, such as increasing oxygen level. Iron oxidizing bacteria was potential for forming the BIFs. Assuming that a single cell can oxidize Fe of 1.1 x 10-11 mole/year, activity of the iron oxidizing bacteria with the abundance of 5.7 x 104 cell/cm3 could generate the Precambrian BIFs. The biomineralization of the iron oxidizing bacteria was an important process forming the iron ores..
19.	三木 翼, 清川 昌一, 硫黄同位体を用いた太古代と古原生代の環境復元について, 地球科学, 69, 3, 2015.06, Sulfur isotopic studies are very important to reconstruct the Archean - Proterozoic environment. For example, the early Earth’s seawater sulfate level, which is thought to have close relationship with contemporary atmospheric oxygen level, can be estimated by analyzing sulfur isotopic ratio. Here, we show studies especially about the estimation of ancient seawater sulfate level and summarize the trend of studies so far. It is well known that the size of a gap of isotopic ratio between sulfate and sulfide in stratum depends on the sulfate reduction rate and seawater sulfate levels. For quantifying the sulfate levels, incubation experiments of sulfate reducing bacteria or model calculations have been in progress. However, different researchers have represented different arguments because of various methods or approaches. Looking at the trend of isotopic studies in recent years, the view in which Archean sulfate level (<200μM or <2.5μM) was considerably lower than that of modern seawater (28mM) seems to be appropreate..
20.	吉丸　慧, 清川 昌一, 伊藤孝, 堤之恭, 南西ガーナBirimian帯Kumashi 層群における砂岩層砕屑ジルコンU-Pb年代． U-Pb age of detrital zircons from Kumasi Group sandstone in Birimian belt, southwestern Ghana, 茨城大学教育学部紀要（自然科学），第65号，, 第65号, 47-56, 2015.04, The Birimian greenstone belt, southwestern Ghana, is mainly composed of mid to deep oceanic sedimentary sequence of metavolcanic rocks (Sefwi Group) and metasedimentary rocks (Kumasi Group, <2154±2 Ma). Extensive syn-tectonic granitoid plutons named Eoeburnean (2180-2150 Ma) and Eburnean (2130-2070 Ma) also occurred. We measured U-Pb ages on detrital zircon grains from Kumasi group sandstone with LA-ICP-MS to improve the understanding of the crustal evolution. The results for 43 samples indicated a single peak of 2163 Ma, coinciding with the age of granitic intrusions, implying that Kumasi Group sedimentation occurred after erosion and weathering of these granitic rocks..
21.	Shoichi Kiyokawa, Takuya Ueshiba, Rapid sedimentation of iron oxyhydroxides in an active hydrothermal shallow semi-enclosed bay at Satsuma Iwo-Jima Island, Kagoshima, Japan. , Sedimentary Geology, http://dx.doi.org/10.1016/j.sedgeo.2015.01.010, 319, 98-113, 2015.01.
22.	星野　辰彦, 倉富　隆, 室野　ゆき, 堀　ともゆき, 大岩根尚, 清川 昌一, 稲垣ふみお, Ecophysiology of Zetaproteobacteria Associated with Shallow Hydrothermal Iron-Oxyhydroxide Deposits in Nagahama Bay of Satsuma Iwo-Jima, Japan．, Frontiers Microbiology, http://dx.doi.org/10.3389/fmicb.2015.01554, １１, 2015.01.
23.	Shoichi Kiyokawa, Shoichiro Koge, Takashi Ito, Minoru Ikehara, An ocean-floor carbonaceous sedimentary sequence in the 3.2-Ga Dixon Island Formation, coastal Pilbara terrane, Western Australia. , Precambrian Research, http://dx.doi.org/10.1016/j.precamres.2014.09.014, 255, 123-143, 2014.11, tThe Dixon Island Formation of the Pilbara terrane, Western Australia, extends from Cleaverville Beachto the Dixon Island coast, and is the only example worldwide of a coastal outcrop of a 3.2–3.1 Ga low-grade greenstone belt. The Dixon Island Formation was situated in an immature island arc setting andcomprises siliceous, carbonaceous deep-water sediments that contain evidence for hydrothermal andmicrobial activity. The extensive outcrop along the coastline makes it possible to examine in detail thecharacteristics of Mesoarchean sedimentation in a hydrothermal environment. This study focuses on acontinuously exposed carbonaceous, black chert succession in the central part of the northern coastlineoutcrop on Dixon Island. At this site, a 20-m-thick, carbonaceous, black chert sequence conformablyoverlies basement rocks of highly altered komatiite–rhyolite tuffs. The black chert sequence formedwell-bedded black chert with carbonaceous peloidal matter and fragmented grains, and the sequence ishomogeneous and finely laminated. In this sequence, evidence of low-temperature hydrothermal fluid,sediments and alteration stractures are well preserved in the lowermost section, indicating that high lev-els of hydrothermal activity occurred on the ocean floor during deposition. In particular, swarms of blackchert veins provide evidence of post-volcanic hydrothermal activity that released organic matter andsilica to the ocean. The carbonaceous peloidal textures and 13Corgvalues of sediments located just abovethe basement, which hosts the vein swarms, suggest that the veins were the conduits for hydrothermalfluid which contained organic-rich silica material and that flowed onto the seafloor to form the homo-geneous carbonaceous cherts along with hydrothermal-related sediment. The 13Corgvalues of organicmatter in the black cherts range from −42‰ to −22‰ (average = −31.9‰; n = 313). Lighter 13C values(−35‰ to −42‰) characterize carbonaceous laminated black chert located ∼5 m above the basement,where biogenic structures (e.g. biomat bed, microfossil structures) are found. The lighter 13C valuesmight be related to methanotrophic micro-organic activity within the sediments during hydrothermalactivity. In summary, we reconstructed the sedimentary environment upon a Mesoarchean hydrothermalocean floor that was a site of microbial activity and local methanogenesis.© 2014 Elsevier.
24.	伊藤　孝, 清川 昌一, 地球科学情報の市民への広報に関する事例研究−3：台湾における地球科学情報の広報，, 茨城大学教育学部紀要（自然科学），, 第63号, 401-413, 2014.04, [URL], 台湾の地球科学的な背景を簡潔に述べると共に，集集地震を契機に作られた921 地震 教育園を中心に，台湾における地球科学的情報がどのように広報されているという点に着目し，そ の特徴的な試みについて紹介する。.
25.	蓑和　雄人, 清川 昌一, 伊藤孝, 薩摩硫黄島長浜湾における海水の連続観測：2013年６月１６日〜２９日の温度・濁度・ｐＨ・電気伝導度・溶存酸素量の深度別変化, 茨城大学教育学部紀要（自然科学），第63号，75−91., 第63号, 75-91, 2014.04, The Nagahama bay of Satsuma Iwo-Jima Island, Kagoshima Japan, is preserved unique hot spring accompanied iron oxyhydroxides sedimentation. We observed the profiles of temperature, turbidity, pH, electric conductivity and dissolved oxygen by multiple sensor in orange-colored Fe-rich water of fishing port, where active discharge of hot spring is occurring, to understand relationship between Fe-rich water and outer ocean water. Measurements were carried out 10cm intervals vertically at 4 locations during 16-29th, June 2013 and the mixing pattern between Fe-rich water and outer ocean water was monitored clearly..
26.	蓑和雄人・清川昌一・伊藤　孝, 薩摩硫黄島長浜湾における海水の連続観測−2：2013年8月26日～9月7日の温度・濁度・pH・電気伝導度・溶存酸素量の深度別変化，, 茨城大学教育学部紀要（教育総合）, 増刊号，, 増刊号, 521-531, 2014.04.
27.	Maeno F., K. Suzuki, S. Kiyokawa, Kikai caldera and southern Kyushu: products of a large silicic magmatic system. IAVCEI 2013 Field Trip Guide B6, 国際火山学会 IAVCEI　　火山, 58, 2, 1-26, 2013.06.
28.	清川 昌一, 相原悠平, Chris. Bohm, 坂本亮, 伊藤孝, 約28億年前カナダ・ウティクレイクグリーンストーン帯ミスタウ地域における熱水脈の産状と岩石記載, 茨城大学教育学部紀要（自然科学），第62号，37−45., 62, 37-45, 2013.04.
29.	Shoichi Kiyokawa, Takashi Ito, Minoru Ikehara, Kosei Yamaguchi, Yusuke Suganuma, Preliminary report on the Dixon Island – Cleaverville Drilling Project, Pilbara Craton, Western Australia. , Geological Survey of Western Australia, Record 2012/14, 14, 1-39, 2012.05.
30.	Ueshiba T., Kiyokawa S., , Long-term observations of iron-oxyhydroxide-rich reddish-brown water in Nagahama Bay, Satsuma Iwo-Jima Island, Kagoshima, Japan, , Memoirs of the faculty of sciences, Kyushu University, Series. D, Earth and Planetary Science,, 2012.05.
31.	SHOICHI KIYOKAWA, TOMOMI NINOMIYA, TOMOAKI NAGATA, KAZUMASA OGURI, TAKASHI ITO, MINORU IKEHARA, KOSEI E. YAMAGUCHI, Effects of tides and weather on sedimentation of iron-oxyhydroxides in a shallow-marine hydrothermal environment at Nagahama Bay, Satsuma Iwo-Jima Island, Kagoshima, southwest Japan, The Island Arc, doi:10.1111/j.1440-1738.2012.00808, 2012.05.
32.	Kiyokawa S., Ito, T., Ikehara, M., Yamaguchi, K.E., Koge S. and Sakamoto, R.,, Lateral variations in the lithology and organic chemistry of a black shale sequence on the Mesoarchean sea floor affected by hydrothermal processes: the Dixon Island Formation of the coastal Pilbara Terrane, Western Australia., The Island Arc, doi:10.1111/j.1440-1738.2012.00811, 2, 1-45, 2012.05.
33.	Hisashi Oiwane, Shoichi Kiyokawa, Satoshi Tonai, Yukiyasu Nakamura, Hidekazu Tokuyama, Geomorphological development of the Goto Submarine Canyon, northeastern East China Sea, Marin Geology,, 288, 49-60, 2011.10.
34.	Satoshi Tonai, Shoichi Kiyokawa, Yusuke suganuma, Juichiro Ashi, Hisashi Oiwane, Differential timing of vertical-axis block rotations in the northern Ryukyu Arc: Paleomagnetic evidence from the Koshikijima Islands, Japan, Tectonophysics,, 497, 71-84, 2011.01.
35.	Yamaguchi K., Kiyokawa S., Ito T., Ikehara M., Kitajima F. and Suganuma Y., Clues of Early life: Dixon Island – Cleaverville Drilling Project (DXCL-dp) in the Pilbara Craton of Western Australia, Scientific Drilling, 7, 34-37, 2009.07.
36.	Kiyokawa S. and Yokoyama K, Provenance of turbidite sands from IODP EXP 1301 in the northwestern Cascadia Basin, western North America., Marin geology, 10.1016/j.margeo.2009.01.003, 260, 19-29, 2009.07.
37.	Tomomi Ninomiya and Shoichi Kiyokawa, Periodic Measurement of Seawater During a Tidal Cycle in Nagahama Bay, Satsuma Iwo-jima Island, Kagoshima, Japan, Mem. Fac. Sci., Kyushu Univ., Ser. D, Earth ＆ Planet. Sci, 2009.02.
38.	藤内智士，大岩根尚，清川昌一，, 鹿児島県甑島列島北部地域の地質構造と古応力解析, 日本地質学会, 2008.11.
39.	高下将一郎，清川昌一，伊藤孝，池原実，北島富美雄, 西オーストラリア・ピルバラ・デキソンアイランド層の地質8 :黒色チャート部層の全有機炭素量と炭素同位体比の岩相・側方変化, 茨城大学教育学部紀要（自然科学）, 57号, 57号, 2008.06.
40.	高下将一郎・清川昌一・伊藤　孝・池原　実, 西オーストラリア・ピルバラ・デキソンアイランド層の地質9:デキソンアイランドDX-A・D・E・F地域の地質, 茨城大学教育学部紀要（自然科学）, 57号, 57号, 2008.06.
41.	清川昌一・稲本雄介・伊藤　孝・池原　実・北島富美雄, 太古代海底熱水系の地質１：南アフリカ・バーバートン帯中の33億年前マサウリ亜層の岩相と全有機炭素量および炭素同位体比,, 茨城大学教育学部紀要（自然科学）, 57号, 57号, 2008.06.
42.	大岩根尚， 藤内智士， 清川昌一， 徳山英一, 北部沖縄トラフと甑島列島北部の構造発達史, 堆積学研究, no.64, 2007.06.
43.	清川昌一, ベリース国に産する白亜紀・第三紀境界周辺層，アルビオン層： チチュル ブクレー タに近接したイジェクター堆積物, 日本地質学会, vol. 112，　No 12, p 730-748, 2006.12, [URL].
44.	Kiyokawa S. T. Ito, M. Ikehara and F. Kitajima, Middle Archean volcano-hydrothermal sequence: bacterial microfossil- bearing 3.2-Ga Dixon Island Formation, coastal Pilbara terrane, Australia., GSA Bulltin, v.118, no.1/2, 2006.01.
45.	Shoichi Kiyokawa, A. Taira, T. Byrne, S. Boweing, Y. Sano, Structural evolution of the middle Archean coastal Pilbara terrane, Western Australia, tectonics, 10.1029/2001TC001296, 21, 5, vol.21, No. 5, p. 1-24,, 2002.10.
46.	Shoichi, Kiyokawa, R. Tada, M.Iturralde, etc., Cretaceous-Tertiary boundary sequence in the Cacarajicara Formatin, western Cuba: An impact-related, high-energy, gravity flow deposit, Geological Society of America special paper 356, 356, 125-144, 2002.08.
47.	Kiyokawa S.,, Geology of the Idonnappu Belt, central Hokkaio, Japan - Evolution of a Cretaceous accretionary complex., Tectonics, vol.11, No. 6, p. 1180-1206, 1992.12.

主要総説, 論評, 解説, 書評, 報告書等

1.	清川 昌一, もう一度読む数研の高校地学（数研出版2014）, 資源地質学会, 2015.03.
2.	清川 昌一, 環境と微生物の辞典 2014　　ストロマトライト, 朝倉書店, 2014.07.
3.	Shoichi Kiyokawa, Tracing Earth's early evolution., Science Impact Ltd., https://doi.org/10.21820/23987073.2017.11.30, 2017.11.

主要学会発表等

1.	元村 健人，清川 昌一，池原 実，佐野 貴司, 後期古原生代海洋における窒素循環, 2022.02.
2.	井口 祐輔，清川 昌一, 西オーストラリア，ピルバラ海岸グリーンストーン帯における 32 億年前， デキソンアイランド層の詳細観察による海底熱水系堆積場の解明, 高知大学海洋コア総合研究センター: 共同利用・共同研究成果発表会, 2022.02.
3.	石川 浩平，清川 昌一, 西オーストラリア，ピルバラクラトン，クリバービル層の CL3 コアを用いた 31 億年前の海洋堆積環境の復元, 高知大学海洋コア総合研究センター: 共同利用・共同研究成果発表会, 2022.02.
4.	Mitasari Awalina、Kiyokawa Shoichi, Formation of modern iron-ooidal sands in a shallow-marine hydrothermal environment at Nagahama Bay, Satsuma Iwo-Jima Island, Japan, 日本地質学会, 2021.09.
5.	元村 健人、清川 昌一、堀江 憲路、佐野 貴司、竹原 真美, カナダ・フリンフロン帯中に分布するタービダイトの堆積年代制約と堆積環境推定：後期古原生代の地球表層環境復元, 日本地質学会, 2021.09.
6.	清川 昌一, 堀 航喜, 酒本 直弥, 倉冨 隆, 後藤 秀作, 池原 実, 現世の鉄鉱層形成：水酸化鉄チムニーマウンドと水酸化鉄沈殿層について-鹿児島県薩摩硫黄島- , 日本地質学会, 2021.09.
7.	池端 雄太、清川 昌一、堤 之恭、堀江 憲路、竹原 真美, 長崎県五島列島の層序と堆積年代, 日本地質学会, 2021.09.
8.	清川 昌一、伊藤 孝、池原 実、山口 耕生、石川 浩平、竹原 真美、堀江 憲路, 31億年前の縞状鉄鉱層掘削：豪州ピルバラ海岸グリーンストーン帯におけるDXCL掘削, 日本地球惑星科学連合大会 JpGU, 2020.05.
9.	清川昌一・石川浩平・三木翼・相原 悠平・山口耕生・池原実・伊藤孝, 31億年前クリバービル層の岩相層序の特徴: オーストラリア・ピルバラDXCL掘削における縞 状鉄鉱層の詳細観察結果, 日本地質学会・第126回学術大会, 2019.09.
10.	清川 昌一, 鈴木 大志, Maher Dawoud, Mohamed El-Hasan, 堀江 憲路, 竹原 真美, 新原生代変火山岩類からなるエジプト・中部東砂漠のエル・ダバー地域の層序/地質構造の復元, 日本地球惑星科学連合大会 JpGU, 2019.05.
11.	清川昌一, 23 億年前，ガーナ・ビリミアン帯における島弧断面の岩相とその層序: GHB 掘削コアおよび露頭層序の比較, 高知コアセンター共同利用共同研究成果報告会, 2019.03.
12.	清川 昌一, 三木 翼,相原 悠平, 寺司 周平, 竹原 真美, 堀江 憲路, 西オーストラリア，海岸ピルバラ帯のクリバービル地域における縞状鉄鉱層堆積から浅海性横ずれ堆積盆の形成史., 日本地球惑星科学連合大会 JpGU, 2018.05.
13.	Shoichi Kiyokawa, Yuhei Aihara, Tsubasa Miki, Mami Takehara and Kenji Horie, Timing of sedimentation of the Cleaverville Formation, coastal Pilbara terrane, Pilbara, Western Australia: new age dating, identified post-accretion pull-apart system and DXCL drilling result., AGU Fall meeting, 2018.12.
14.	清川昌一, 太古代―原生代の海底環境復元プロジェクト：鉄鉱層について．, 地球史研究所　, 2018.09.
15.	Kiyokawa, S., Ito, T., Ikehara M., Yamaguchi K. Onoue T., Horie K., Yoshimaru Y., Miki T., Takehara, M. , Tetteh, G.M. ; Nyame, F.K.,, Sedimentary environment and tectonic deformations of the Neoproterozoic Iron formation at the Wadi El-Dabbah greenstone sequence, Central Eastern Desert, Egypt, AGU fall meeting, 2017.12.
16.	清川 昌一・元村健人・Wouter Bleeker・Dave Price,, 古原生代,トランスハドソン変動帯に残される深海底堆積物に ついての層序復元: Flin Flon帯・Cape Smith帯の堆積層, 日本地質学会, 2017.09.
17.	清川 昌一, 元村 健人, Bleeker Wouter、Price Dave, BPT05-1カナダ/古原生代トランスハドソン変動帯に残された堆積盆の層序復元. , 日本地球惑星科学連合大会 JpGU-AGU Joint Meeting, 2017.05.
18.	Kiyokawa, S., Ito, T. , Ikehara M., Yamaguchi K., Onoue T., Horie K., Yoshimaru Y., Miki T., Takehara, M., Tetteh, G.M., Nyame, F.K., Archean-Proterozoic Deeper Oceanic Environment: Pilbara (DXCL), Barbarton (Komati Section) Ghana(GHB) Results., 4th International Geoscience Symposium "Precambrian World 2017" in Fukuoka , 2017.03, [URL].
19.	清川昌一・吉丸慧., ビリミアン帯に残される22億年前の島弧性オフィオライトセクションと海底層序：ケープスリーポイントセクション，西ガーナ, 高知コアセンター共同利用共同研究成果報告会, 2017.03.
20.	Kiyokawa, S., Ito, T., Ikehara M., Yamaguchi K. Onoue T., Horie K., Yoshimaru Y., Miki T., Takehara, M. , Tetteh, G.M. ; Nyame, F.K., , Reconstruction of the Paleoproterozoic deeper ocean environment: Preliminary Report of the Ghana Birimian Greenstone Belt Drilling Project (GHB)., AGU fall meeting, 2016.12.
21.	清川 昌一, 松木 宏彰, 阿蘇外輪山北西部崖部の崩壊と砕屑場をおそった土石流(速報), 日本地球惑星科学連合大会, 2016.05.
22.	清川昌一，元村健人，Wouter Bleeker, Dave Price,, カナダ・フリンフロン・ケープスミスにおける18-19億年前の堆積層：原生代中期の大陸分裂時の海底環境, 高知コアセンター共同利用共同研究成果報告会, 2016.02.
23.	清川 昌一, Restoreation environment of Archean/Proterozoic Deep Ocean Floor: REAP project., 3rd International Geoscience Symposium: Project A in Korea,, 2015.03, In the earth history, deep sea ocean-floor preserved hint to understand environmental condition in their stratigraphic characteristics and these sediments. When we reconstructed Archean-Proterozoic environments, deep ocean sequence is good key sequence to recognized the surface environment. Many place have been reported of the black chert to Iron rich sediments above volcanic sequence. Following area, we researched detail about stratigraphy at the oceanic sequence. These area preserved deeper sedimentary environment at that ages. [Archean] 1) Dixon Island-Cleaverville formations in West Pilbara, Australia, 2) Mappepe Formation in Barberton, South Africa. Especially, we did scientific drilling in Pilbara, which is called “ DXCL drilling project”, at 2007 and 2011 summer. [Proterozoic] 1) Cape three point, Ashanti belt, Ghana, 2) Cape Smith belt, Quebec, Canada, 3) Flin Flon belt, Manitoba, Canada, 4) El Dabbah iron formation, East Egypt. A systematic combinations of geological, sedimentological, geochemical, and geobiological approaches will be applied to the fresh samples along the coast, mine and drilling core. We will understand the influence of submarine hydrothermal activity on the biological and chemical evidence and take original depositional environmental information at the time. Here we shows overview of our projects and some result such as DXCL drilling, Mappepe formation and Ghana Greenstone Project. .
24.	清川 昌一・伊藤 孝・尾上 哲治・池原 実・吉丸 慧・TETTEH, George M.・NYAME, Frank K., 22億年前海底堆積物掘削計画１．, 高知コアセンター共同利用共同研究成果報告会, 2015.03.
25.	清川 昌一, 伊藤 孝, Frank K. Nyame, Reconstructed Oceanic Sedimentary Sequence in the Cape Three Points Area, Southern Axim-Konongo (Ashanti) Greenstone Belt in the Paleoproterozoic Birimian of Ghana. , AGU, 2014.12, The Birimian greenstone belt likely formed through collision between the West African and Congo Cratons ~2.2 Ga. Accreted greenstone belts that formed through collision especially during the Palaeoproterozoic are usually not only good targets for preservation of oceanic sedimentary sequences but also greatly help understand the nature of the Paleoproterozoic deeper oceanic environments. In this study, we focused on the coastal area around Cape Three Points at the southernmost part of the Axim-Konongo (Ashanti) greenstone belt in Ghana where excellently preserved Paleoprotrozoic deeper oceanic sedimentary sequences extensively outcrop. Kwtakor zone (> 150m) is the thickest volcaniclastic sequence and has fining upward sections. Akodaa zone (> 150m) consists of finer bed of volcaniclastics with black shales and has fining upward character. This continuous sequence indicate distal portion of submarine volcaniclastic section in an oceanic island arc between the West African and Congo Cratons..
26.	清川 昌一, 伊藤孝, 池原実, 山口耕生, 尾上哲治, 菅沼悠介, 寺司周平, 相原悠平, 三木翼, 32-31億年前の海底堆積層解析：DXCL掘削からみられる海洋環境と縞状鉄鉱層形成., 日本地質学会, 2014.09, .2-3.1 Ga Dixon Island (DX)-Cleaverville (CL) formations are well-preserved black shale to banded iron formation sequences; only affected by low-grade metamorphism without intensive deformation. We performed DXCL drilling projects (Yamaguchi et al., 2009, Kiyokawa et al., 2012a) which had been done two times drillings of DXCL-1 at 2007 and DXCL-2 at 2011. These drilling projects selected two sites; CL site at the CL Formation, and DX site at the upper DX Formation. DXCL result shows coarsening and thickening upward black shale–BIF sequences, representing an oceanic small depression environment that is identified by accreted immature island arc setting (Kiyokawa et al., 2006, 2012b)..
27.	清川 昌一, 伊藤孝, 池原実, 山口耕生, 尾上哲治, 菅沼悠介, 寺司周平, 相原悠平, 三木翼, Mesoarchean oceanic floor environment at sedimentary sequences in the Dixon Island =Cleaverville Formation, Pilbara Australia: results of the DXCL drilling projet. , 21st General Meeting of IMA South Africa 2014,, 2014.09, .2-3.1 Ga Dixon Island (DX)-Cleaverville (CL) formations are well-preserved black shale to banded iron formation sequences; only affected by low-grade metamorphism without intensive deformation. We performed DXCL drilling projects (Yamaguchi et al., 2009, Kiyokawa et al., 2012a) which had been done two times drillings of DXCL-1 at 2007 and DXCL-2 at 2011. These drilling projects selected two sites; CL site at the CL Formation, and DX site at the upper DX Formation. DXCL result shows coarsening and thickening upward black shale–BIF sequences, representing an oceanic small depression environment that is identified by accreted immature island arc setting (Kiyokawa et al., 2006, 2012b)..
28.	Shoichi Kiyokawa, T. Ito, M. Ikehara, K.E. Yamaguchi, K. Horie, M. Takehara, S. Aihara, T. Miki, Mesoarchean Banded Iron Formation sequences in Dixon Island-Cleaverville Formation, Pilbara Australia: Oxygenic signal from DXCL project. , AGU, 2013.12, [URL].
29.	Shoichi Kiyokawa, T. Ito, M. Ikehara, Y. Aihara, T. Miki, Oceanic sedimentary sequences in Mesoarchean Dixon Island-Cleaverville Formation, Pilbara Australia: Result of DXCL drilling project., Archean symposium, 2013.11.
30.	清川 昌一, 伊藤孝, 池原実, 山口耕生, 尾上哲治, 菅沼悠介, 坂本亮, 寺司周平, 相原悠平, 竹原真美, 太古代の海底直上の堆積層：32億年前オーストラリア，デキソンアイランド層の例., 日本地質学会, 2013.09.
31.	清川 昌一, DXCLとガーナプロジェクト, Project A in Izushimoda, 2013.03, [URL].
32.	清川 昌一, 伊藤孝, 池原実, 山口耕生, 尾上哲治, 堀江憲路, 寺司周平, 相原修平, 三木翼, 31億年前のクリバービル縞状鉄鉱層：DXCL2掘削報告２, 高知コアセンター共同研究発表会, 2013.02, DXCL2 の成果報告：31億年前の縞状鉄鉱層を掘削した．.
33.	Shoichi Kiyokawa, T. Ito, M. Ikehara, K.E. Yamaguchi, K. Horie, R. Sakamoto, M. Takehara, S. Teraji, Mesoarchean oceanic sedimentary sequences: Dixon Island-Cleaverville formations of Pilbara vs Komati section of Fig Tree Group in Barberton. , AGU, 2012.12, [URL].
34.	清川 昌一, 伊藤孝, 池原実, 山口耕生, 尾上哲治, 菅沼悠介, 坂本亮, 寺司周平, 相原悠平, 竹原真美, 太古代の31億年前のクリバービル縞状鉄鉱層の層序：DXCL2掘削の速報, 日本地質学会, 2012.09.
35.	清川 昌一, 伊藤孝, 池原実, 山口耕生, 堀江憲路, 坂本　亮, 竹原　真美, 相原悠平, Reconstructed of mesoarchean oceanic sedimentary environments: result of DXCL drillings, 34th International Geology Congress, 2012.08, [URL].
36.	清川 昌一, 山口 耕生, 尾上 哲治, 寺司　修平, 坂本　亮, 相原　悠平, 菅沼　悠介, 堀江　憲路, 池原　実, 伊藤　孝, 太古代中期のクリバービル縞状鉄鉱層: DXCL2 掘削報告 1, 地球惑星科学連合, 2012.05, [URL].
37.	清川昌一，大岩根尚，中村恭之，亀尾桂，上芝卓也,, 鬼界カルデラおよび薩摩硫黄島長浜湾における地形と地質構造, 地球惑星科学連合, 2012.05.
38.	S. Kiyokawa, T. Ito, M. Ikehara, K.E. Yamaguchi , R. Sakamoto, S. Teraji, Y. Aihara, Y. Suganuma, K. Horie and T. Onoue. , Mesoarchean hydrothermal oceanic floor sedimentation: from DXCL1 and 2 drilling projects of the Dixon Island - Cleaverville formations, Pilbara, Australia., 2nd IGS Project A Symposium 2012 in Taiwan, 2012.03.
39.	清川 昌一, 太古代中期のクリバービル縞状鉄鉱層: DXCL2 掘削報告 1,, 高知コアセンター共同研究発表会, 2012.03, DXCL2 の成果報告：31億年前の縞状鉄鉱層を掘削した．.
40.	S. Kiyokawa, T. Ito, M. Ikehara, K. E. Yamaguchi, K. Horie, R. Sakamoto, M. Takehara, S. Teraji. , Mesoarchean oceanic sedimentary sequences: Dixon Island-Cleaverville formations of Pilbara vs Komati section of Fig Tree Group in Barberton. , AGU, 2011.12.
41.	清川昌一・伊藤孝・池原実・山口耕生・坂本亮・竹原真美・寺司周平，, 太古代中期/原生代初期の海底堆積層序比較，, 日本地質学会, 2011.09, 太古代の海底と原生代初期の海底について，オーストラリアのピルバラ・デキソンアイランド層とガーナ・カナダの地層とを対比して違いを示す．.
42.	清川 昌一, 太古代中期の海洋底層序比較と堆積環境：クリバービル・デキソンアイランド層vs マペペ層, 地球惑星科学連合, 2011.05.
43.	Shoichi Kiyokawa, Takashi Ito, Minoru Ikehara , Kosei Yamaguchi, Hiroshi Naraoka, Ryo Sakamoto, Kentaro Hosoi, Yuske Suganuma., Sedimentary environment of 3.2 GA Dixon Isalnd and Cleaverville Formations: result of DXCL-DRILLNG, West Pilbara, Australia, AGU, 2010.12.
44.	Kiyokawa S., T. Ito, M. Ikehara, K. Yamaguchi, H. Naraoka, R. Sakamoto, S. Koge, K. Hosoi, and Y. Suganuma, Mesoarchean hydrothermal oceanic sedimentation and environment: DXCL-drilling, West Pilbara, Australia. , Fifth International Archean Symposium, 2010.09.
45.	清川昌一, 太古代の海底の変遷, 九州応用地質学会, 2010.07.
46.	T. Ninomiya, S. Kiyokawa, S. Koge, K, Oguri, K. Yamaguchi, T. Ito, M, Ikehara,, Shallow-sea hydrothermal activity and ferric-oxides sedimentation in the Nagahama-Bay, Satsuma Iwo-jima island, Kagoshima, Japan, AGU Fall meeting , 2008.12.
47.	S. Kiyokawa, T. Ito, M. Ikehara, F. Kitajima, K. Yamaguchi, Y. Suganuma, S. Koga, R. Sakamoto, H. Naraoka, 3.2 Ga hydrothermal sedimentary sequence: DXCL drilling Project, West Pilbara, Australia ,, AGU Fall meeting , 2008.12.
48.	清川昌一・伊藤孝・池原実・北島富美雄１・奈良岡浩１・山口耕生４ ・菅沼悠介5・高下将一郎１・坂本亮１・徳野康太, DXCL掘削計画：ピルバラ海岸グリーンストーン帯，３２億年前のクリバービル層群の掘削報告１, 日本地質学会, 2008.09.
49.	S. Kiyokawa, Preliminary result of the Dixon island-Cleaverville Drilling (DXCL-Dri) Project., Australian earth sciences convention, 2008.07.
50.	T. Ninomiya, S. Kiyokawa, S. Koge, K. Oguri, K. Yamaguchi, T. Ito, M. Ikehara,, The effect of Sea tide on the ferric deposit in the Nagahama bay, Satsuma Iwo-jima Island, Kagoshima, AOGS 5th Annual Meeting, 2008.06.
51.	S. Kiyokawa, T. Hasegawa,, Tectonic evolution of the Goto island, Nagasaki prifecture of Japan, AOGS 5th Annual Meeting, 2008.06.
52.	T. Hasegawa, A. Yamamoto, S. Kiyokawa, N. Hasebe., Geology of Northeast Part of Fukue Island, Goto Islands, Nagasaki Prefecture., AGU Fall meeting , 2007.12.
53.	S. Kiyokawa, T. Ito, S. Koge, Y. Inamoto, M. Ikehara, F. Kitajima, K. E. Yamaguchi, Archean hydrothermal sea-floor surface environment: Australia VS South Africa, AGU, 2007.12.
54.	S. Kiyokawa, S. Koge and Y. Inamoto, Archean hydrothermal ocean surface envitoment: Australia VS South Africa, International Symposium on Gondwana to Asia & 2007, 2007.11.
55.	清川昌一・高下将一郎・伊藤孝・池原実・北島富美雄 , 太古代の熱水系黒色チャートの比較：デキソンアイランド層，マーブルバーチャート，ノースポールチャート, , 日本地質学会第113年学術大会, 2006.09.
56.	Kiyokawa S., , Middle Archean volcano-hydrothermal sequence: 3.2 Ga Dixon Island Formation, coastal Pilbara terrane, Australia, , 17th International Sedimentary Congress, 2006.09, [URL].
57.	Kiyokawa S., , Cretaceous-Tertiary boundary giant landslid sequence in the Cacarajicara Formation, western Cuba: an impact-related, high-energy flow deposit. , , 17th International Sedimentary Congress, 2006.09, [URL].
58.	清川昌一, ファンデフーカ海嶺東翼の地質（１）堆積物とその起源, IODP成果報告会, 2006.05.
59.	清川昌一・伊藤孝・池原実・北島富美雄 , 太古代の火山性海底熱水シーケンス：初期生命生息場の例．ピルバラ，オーストラリア, 2006.05.
60.	Kiyokawa, S., Sakaguchi, M., Urabe, T., and Expedition 301 Shipboard Scientific Party, Sea Floor fracture and hydrothermal vein system in the Juan de Fuca ridge: IODP Expedition 301, Earth and Planetary Sciences Joint Meeting. , 2006.03.
61.	S. Kiyokawa, Archean hydrothermal oceanic sequence – an example of microfossil living environmant from Pilbara Craton, Australia, 2006.03.

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