2013 Fiscal Year Final Research Report
Reconstracted ocean floor cross-section during Archean to Proterozoic
| Project/Area Number |
22253008
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Geology
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| Research Institution | Kyushu University |
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Principal Investigator |
KIYOKAWA Shoichi 九州大学, 理学(系)研究科(研究院), 准教授 (50335999)
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| Co-Investigator(Kenkyū-buntansha) |
ITO Takashi 茨城大学, 教育学部, 教授 (10272098)
IKEHARA Minoru 高知大学, 自然科学系, 准教授 (90335919)
YAMAGUCHI Kosei 東邦大学, 理学部, 准教授 (00359209)
HORIE Kenji 国立極地研究所, 地圏研究グループ, 助教 (00571093)
SUGANUMA Yusuke 国立極地研究所, 地圏研究グループ, 助教 (70431898)
ONOUE Tetsuji 熊本大学, 理学部, 准教授 (60404472)
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| Co-Investigator(Renkei-kenkyūsha) |
NARAOKA Hiroshi 九州大学, 理学研究院, 教授 (20198386)
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| Project Period (FY) |
2010-04-01 – 2014-03-31
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| Keywords | 太古代 / 原生代 / グリーンストーン帯 / 陸上掘削 / 黒色頁岩 / 縞状鉄鉱層 / ピルバラグリーンストーン帯 / ペリミアン帯 |
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| Research Abstract |
We did following four topics to understand Mesoarchean to Paleoproterozoic ocean floor environment. 1) 3.2Ga DXCL drilling project: 200m long fresh black shale-iron formation had been drilling and we collected flesh sample. 2) Lateral variation of Cleaverville iron formation in coastal Pilbara terrane, Western Australia. 3) Geochemical analysis (isotope C, S) shows ocean environment at 3.2 Ga already prepare to oxidation produce system at near the island arc condition. 4) 2.2Ga Berimian greenstone belt in Ghana have been preserved excellent oceanic sequence at that time. We reconstructed deep ocean island arc stratigraphy at this area.
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[Journal Article] 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 Australia2012
Author(s)
Kiyokawa S., Ito, T., Ikehara, M., Yamaguchi, K.E., Koge S. and Sakamoto, R.
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Journal Title
The Island Arc
Volume: v.21, 2
Pages: 66-78
DOI
Peer Reviewed
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[Journal Article] 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. 2, 1-152012
Author(s)
Kiyokawa S., Ninomiya T., Nagata T., Oguri M., Ito T., Ikehara M., Yamaguchi K.E.
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Journal Title
The Island Arc
Volume: v.21, 2
Pages: 118-147
DOI
Peer Reviewed
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