2012 Fiscal Year Final Research Report
Determination of chemical composition of outer core
| Project/Area Number |
22340131
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
ONO Shigeaki 独立行政法人海洋研究開発機構, 地球内部ダイナミクス領域, 主任研究員 (20313116)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 外核 / 第一原理計算 / 高圧実験 |
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| Research Abstract |
It is known that the earth’s outer core is not a liquid of pure iron and includes a significant amount of light elements. In order to understand the light elements, we performed ab initio simulations using super computers and high-pressure experiments using diamond anvil cells. An assumption that silicon, oxygen, and sulfur are light elements in the outer core was excluded. It was expected that the outer core has carbon and hydrogen.
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