Crystallization of the magma ocean and chemical stratification of the primordial mantle
| Project/Area Number |
15H05470
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geochemistry/Cosmochemistry
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| Research Institution | Ehime University (2016-2017)
Tokyo Institute of Technology (2015) |
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Principal Investigator |
Nomura Ryuichi 愛媛大学, 地球深部ダイナミクス研究センター, 特定助教 (40734570)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥22,880,000 (Direct Cost: ¥17,600,000、Indirect Cost: ¥5,280,000)
Fiscal Year 2017: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2016: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2015: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
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| Keywords | 地球・惑星内部構造 / 惑星起源・進化 / 地球化学 / 地殻・マントル物質 / 岩石・鉱物・鉱床学 / 地殻・マントル化学 / 初期地球 / 岩石学・鉱物・鉱床学 |
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| Outline of Final Research Achievements |
The aim of this study is to understand the chemistry of crystallizing magma ocean based on high-pressure experiments using diamond anvil cell. Aiming at solving technical problems which may be the cause of inconsistency on melting phase relations reported by various groups, we (1) have introduced X-ray laminography to construct high-pressure and high-temperature in-situ X-ray chemical imaging measurement system at BL47XU, SPring-8, (2) have developed an internal resistance-heating technique using boron-doped diamond heater. In addition, we have developed large-strain, torsional deformation apparatus at high pressures up to 135 GPa with a help of hard nano-polycrystalline diamond anvils.
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Report
(4 results)
Research Products
(30 results)
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[Journal Article] Reconciling magma-ocean crystallization models with the present-day structure of the Earth’s mantle2017
Author(s)
Ballmer, M.D., Lourenco, D.L., Hirose, K., Caracas, R., Nomura, R.
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Journal Title
Geochemistry, Geophysics, Geosystems
Volume: 18
Issue: 7
Pages: 2785-2806
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] High-pressure rotational deformation apparatus to 135 Gpa2017
Author(s)
Ryuichi Nomura, Shintaro Azuma, Kentaro Uesugi, Yuki Nakashima, Tetsuo Irifune, Toru Shinmei, Sho Kakizawa, Yohei Kojima, and Hirokazu Kadobayashi
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Journal Title
Review of Scientific Instruments
Volume: 88
Issue: 4
Pages: 044501-044501
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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