Variation of seawater chemical composition by fluid inclusions of evaporites
Project/Area Number |
25400505
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Stratigraphy/Paleontology
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Research Institution | Japan Agency for Marine-Earth Science and Technology |
Principal Investigator |
Kuroda Junichiro 国立研究開発法人海洋研究開発機構, 生物地球化学研究分野, 主任研究員 (10435836)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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Keywords | 蒸発岩 / 流体包有物 / 中新世 / 海水組成 / 岩塩 / 白亜紀 / 古海洋 |
Outline of Final Research Achievements |
In this study we 1) developed a method to date evaporite with various isotope records (e.g., sulfur and strontium of sulfate evaporites), 2) measured the major element compositions of fluid inclusions of halite with a cryo-FIB-EDS, and then investigated water exchange history of the source brine based on Os isotopic records. The Os isotopic records of the drilled cores in the Mediterranean basins show that an offset with the coeval Atlantic ocean water, which is attributed to limited exchange with the North Atlantic during the Messinian salinity crisis. The source of unradiogenic Os is likely to be weathering of ultramafic rocks (ophiolites) cropping out in the editerranean drainage basins. Based on a boxmodel we estimated the amount of unradiogenic Os and the Atlantic-Mediterranean exchange rate to explain this offset.
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Report
(4 results)
Research Products
(37 results)
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[Journal Article] Miocene to Pleistocene osmium isotopic records of the Mediterranean sediments2016
Author(s)
J. Kuroda, F. J. Jimenez-Espejo, T. Nozaki, R. Gennari, S. Lugli, V. Manzi, M. Roveri, R. Flecker, F. J. Sierro, T. Yoshimura, K. Suzuki, and N. Ohkouchi
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Journal Title
Paleoceanography
Volume: 31
Issue: 1
Pages: 148-166
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Geochemistry of Aptian bedded chert succession from the deep Pacific basin: New insights into Cretaceous oceanic anoxic event 1a2015
Author(s)
Kuroda, J., Ihoriya, N., Hori, R.S., Ogawa, N.O., Ikehara, M., Tanimizu, M., Ohkouchi, N.
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Journal Title
Geological Society of America Special Paper
Volume: 511
Pages: 307-330
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] Miocene to Pleistocene osmium isotopic records of the Mediterranean and Atlantic sediments2016
Author(s)
Junichiro Kuroda, Francisco J. Jimenez-Espejo, Tatsuo Nozaki, Rocco Gennari, Stefano Lugli, Vinicio Manzi, Marco Roveri, Rachel Flecker, Francisco J. Sierro, Toshihiro Yoshimura, Katsuhiko Suzuki and Naohiko Ohkouchi
Organizer
The 26th Goldschmidt Conference
Place of Presentation
パシフィコ横浜,神奈川県横浜市,日本
Year and Date
2016-07-01
Related Report
Int'l Joint Research
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[Presentation] The Lord Howe Rise drilling project2016
Author(s)
Ron Hackney, 山田泰広, Kliti Grice, 黒田潤一郎, Jessica H. Whiteside, Marco Coolen, 稲垣史生, Richard Arculus, Dietmar R. Muller, 斎藤実篤, 西弘嗣
Organizer
日本地球惑星科学連合2016年大会
Place of Presentation
幕張メッセ,千葉県千葉市,日本
Year and Date
2016-05-26
Related Report
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[Presentation] Carbon and nitrogen stable isotope measurements and X-ray photoabsorption spectroscopy of microbial-mat-containing gypsum crust in modern saline pan2015
Author(s)
Yuta Isaji, Hodaka Kawahata, Toshihiro Yoshimura, Junichiro Kuroda, Nanako O. Ogawa, Francisco J. Jimenez-Espejo, Stefano Lugli, Vinicio Manzi, Marco Roveri, Yusuke Tamenori, and Naohiko Ohkouchi
Organizer
European Geoscience Union General Assembly 2015
Place of Presentation
ウィーン,オーストリア
Year and Date
2015-04-15
Related Report
Int'l Joint Research
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[Presentation] Miocene to Pliocene osmium isotopic records of Mediterranean sediments2015
Author(s)
Junichiro Kuroda, Francisco J. Jimenez-Espejo, Tatsuo Nozaki, Rocco Gennari, Stefano Lugli, Vinicio Manzi, Marco Roveri, Rachel Flecker, Katsuhiko Suzuki, Toshihiro Yoshimura, Francisco Sierro and Naohiko Ohkouchi
Organizer
European Geoscience Union General Assembly 2015
Place of Presentation
ウィーン,オーストリア
Year and Date
2015-04-15
Related Report
Int'l Joint Research
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