2011 Fiscal Year Final Research Report
Melting phase relation and element partitioning in mantle materials under the lowermost mantle condition
Project/Area Number |
22740344
|
Research Category |
Grant-in-Aid for Young Scientists (B)
|
Allocation Type | Single-year Grants |
Research Field |
Petrology/Mineralogy/Science of ore deposit
|
Research Institution | Tokyo Institute of Technology |
Principal Investigator |
TATENO Shigehiko 東京工業大学, 大学院・理工学研究科, 特任助教 (30572903)
|
Project Period (FY) |
2010 – 2011
|
Keywords | 高温高圧実験 / ダイヤモンドアンビルセル / 下部マントル |
Research Abstract |
Deep mantle melting has profound implications for chemical differentiation in early earth. Phase relation of peridodite was investigated to lowermost mantle condition. The results shows that liquidus phase changes from perovskite to post-perovskite at 110 GPa. Determined iron partitioning between perovskite/post-perovskite and partial melt indicates strong iron enrichment in melt, suggesting dense melt in the deep mantle conditions.
|
-
[Journal Article] Spin crossover and iron-rich silicate melt in the Earth's deep mantle2011
Author(s)
Nomura, R., Ozawa, H., Tateno, S., Hernlund, J., Muto, S., Ishii, H., Hiraoka, N.
-
Journal Title
Nature
Volume: 473
Pages: 199-202
Peer Reviewed
-
-
-
-
-
-
-