Mineral assemblage in the deep interior of the giant planet investigated by the high pressure and temperature phase transition in titanate
| Project/Area Number |
23740389
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | The University of Tokyo |
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Principal Investigator |
HAMANE Daisuke 東京大学, 物性研究所, 技術職員 (20579073)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | チタネイト / ダイアモンドアンビルセル / 放射光 X 線 / 透過型電子顕微鏡 / スーパーアース / 高圧高温 / FeTiO3 / 高圧力 / 巨大惑星 |
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| Research Abstract |
Mineral assemblage in the deep interior of the giant planet such as Super Earth is the challenging subject for the experimental study because of the significant difference between experimentally producible pressure and real pressure at the interior of the giant planet. One of the plausible ways is an approach from the analogue material, and then titanate is expected to behave as analogue of silicate even at low pressure. Although the long-held expectation was the decomposition of ABO3-type compound into AO + BO2 assemblage at the ultrahigh pressure, present experimental work showed that 2/3FeO + 1/3FeTi3O7 assemblage is the densest and this model may be more stable at deeper interior of the giant planet.
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Report
(3 results)
Research Products
(28 results)
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[Journal Article] Ehimeite, NaCa2Mg4CrSi6Al2O22(OH)2: The first Cr-dominant amphibole from the Akaishi Mine, Higashi-Akaishi Mountain, Ehime Prefecture, Japan2012
Author(s)
Nishio-Hamane D., Ohnishi M., Minakawa T., Yamaura J., Saito S., Kadota R.
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Journal Title
Journal of Mineralogical and Petrological Sciences
Volume: 107
Issue: 1
Pages: 1-7
DOI
NAID
ISSN
1345-6296, 1349-3825
Related Report
Peer Reviewed
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[Journal Article] Spin transition of ferric iron in Al-bearing Mg-perovskite up to 200 GPa and its implication for the lower mantle2012
Author(s)
Fujino, K., Nishio-Hamane, D., Seto, Y., Sata, N., Nagai, T., Shinmei, T., Irifune, T., Ishii, H., Hiraoka, N., Cai, Y. Q., and Tsuei K.-D.
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Journal Title
Earth Planet. Sci. Lett.
Volume: 317-318
Pages: 407-412
DOI
Related Report
Peer Reviewed
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