Melting temperature determination in the Earth's core conditions
Project/Area Number |
24684038
|
Research Category |
Grant-in-Aid for Young Scientists (A)
|
Allocation Type | Partial Multi-year Fund |
Research Field |
Petrology/Mineralogy/Science of ore deposit
|
Research Institution | Okayama University (2015) Tokyo Institute of Technology |
Principal Investigator |
Tateno Shigehiko 岡山大学, 地球物質科学研究センター, 准教授 (30572903)
|
Project Period (FY) |
2012-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2015: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2013: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2012: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
|
Keywords | 地球中心核 / 高温高圧実験 / ダイヤモンドアンビルセル / ダイアモンドアンビルセル / 核 |
Outline of Final Research Achievements |
Phase relations were investigated for Fe, Fe-Si, and Fe-S systems over 200 GPa. High-pressure and -temperature experiments were performed by laser-heated diamond anvil-cell technique. Presence/absence of melting upon heating was determined by a combination of in-situ and ex-situ analysis of synchrotron X-ray and chemical analysis on a recovered sample. Obtained melting curve of core materials tightly constrained the inner-core/outer-core boundary temperature of the present Earth.
|
Report
(5 results)
Research Products
(13 results)
-
-
[Journal Article] Carbon-depleted outer core revealed by sound velocity measurements of liquid iron–carbon alloy2015
Author(s)
Nakajima, Y., Imada, S., Hirose, K., Komabayashi, T., Ozawa, H., Tateno, S., Tsutsui, S., Kuwayama, Y. and Baron, A.
-
Journal Title
Nature Commun.
Volume: 6
Issue: 1
Pages: 8942-8942
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
-
-
-
[Presentation] 内核の結晶構造
Author(s)
舘野繁彦, 廣瀬敬, 大石泰生
Organizer
日本地球惑星科学連合2013年大会
Place of Presentation
幕張メッセ
Related Report
-
-
-
-