Chemical enrichment processes in Early Earth's surface environments
| Project/Area Number |
26709069
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Earth system and resources engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
Otake Tsubasa 北海道大学, 工学(系)研究科(研究院), 准教授 (80544105)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
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| Keywords | バーバトン緑色片岩帯 / 初期地球 / 地球表層環境 / 縞状鉄鉱層 / クロムスピネル / 熱水実験 / 生命の進化 / 資源工学 / 地球化学 / 環境地質学 / クロム |
|---|
| Outline of Final Research Achievements |
Both geological survey in the Barberton Greenstone Belt, South Africa and laboratory experiments using a hydrothermal flow-through apparatus were conducted to investigate the origin of chromium spinel and temporal/special distributions of chromium enrichment found in a banded iron formation formed 3.2 billion years ago. The experimental results demonstrated that chromium spinel can be formed from iron and chromium hydroxides by the addition of dissolved ferrous iron under low temperature hydrothermal conditions (e.g., 150 degree Celsius). The results of geological survey showed that chromium enrichment in the banded iron formation were due to chemical processes. However, the chromium enrichments were localized in a particular geological unit and area. Important factors controlling the chemical enrichment of chromium are likely the degree of hydrothermal activity and sedimentary environments. These results suggest that a part of ocean was already oxygenated 3.2 billion years ago.
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Report
(4 results)
Research Products
(46 results)
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[Journal Article] A novel method for remediation of nickel containing wastewater at neutral conditions2017
Author(s)
Hase, H., Nishiuchi, T., Sato, T., Otake, T., Yaita, T., Kobayashi, T., Yoneda, T.
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Journal Title
Journal of Hazardous Materials
Volume: 329
Pages: 49-56
DOI
NAID
Related Report
Peer Reviewed / Open Access
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[Journal Article] 5-year chemico-physical evolution of concrete-claystone interfaces2017
Author(s)
U. Mader, A. Jenni, C. Lerouge, S. Gaboreau, S. Miyoshi, Y. Kimura, V. Cloet, M. Fukaya, F. Claret, T. Otake, M. Shibata, B. Lothenbach
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Journal Title
Swiss Journal of Geosciences
Volume: 印刷中
Issue: 1
Pages: 307-327
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] The Relationship Between Smectite/ Illite Ratios and Diagenetic History of Sandstone Reservoir, Batu Ayau Formation, Upper Kutai Basin, East Kalimantan, Indonesia2014
Author(s)
T. Puji Astuti, S. Surjono, I. Warmada, D.P. Kusuma, Y. Tsukada, T. Otake, and T. Sato
Organizer
International Petroleum Technology Conference 2014
Place of Presentation
Kuala Lumpur Convention Center, Kuala Lumpur, Malaysia
Year and Date
2014-12-10 – 2014-12-12
Related Report
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