Quantitative study on the volume of granitic melt, evolved by partial melting of pelitic metamorphic rocks
| Project/Area Number |
12640441
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | NIIGATA UNIVERSITY |
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Principal Investigator |
SHIMURA Toshiaki Faculty of Science, Niigata University, Associate Professor, 理学部, 助教授 (70242451)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2001: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2000: ¥3,100,000 (Direct Cost: ¥3,100,000)
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| Keywords | pelitic metamorphic rocks / partial melting / granite / migmatite / UHT metamorphic rock / spinel + quartz / rock crush / Sタイプ花崗岩 / 高温高圧実験 / グラニュライト |
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| Research Abstract |
The aim of this research project is, to make clear about the volume of granitic melt that evolved by partial melting of pelitic metamorphic rocks. Therefore it is important to connect the metamorphic petrology with the igneous petrology.
In the first year of the term on this project, I provide "the low contamination rock crushing laboratory". Therefore I bought a jaw-crusher and other rock-crushing equipments. This preparation is as good as done. But it had remained as a problem, that contamination of Cr from the jaw metal to some sample is not negligible, in case of such as acidic rocks.
Scientific research has been done on the Hidaka Metamorphic Belt and on the Uetsu area. Especially, spinel + quartz assemblage is found from the Uetsu area, is one of the important results. It is the first finding from the Japanese Island. I revealed that such as the ultrahigh temperature metamorphism could be occur in the island-arc condition (Shimura et al., 2002 in press). Then we could describe the relation, such as the crustal materials and igneous rocks (Kagashima and Shimura, 2001). In the Hidaka Metamorphic Belt, corundum-andalusite-tourmaline pegmatite vein is fined out. It is important thing for the future study on the heat history of the Hidaka Crust.
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Report
(3 results)
Research Products
(16 results)
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[Publications] Hiroi, Y., Hokada, T., Beppu, M., Motoyoshi, Y., Shimura, T., Yuhara, M., Shiraishi, K., Grantham, G. H. and Knoper, M. W.: "New evidence for progrademetamorphism and partial melting of Mg-Al-rich granulites from western Namaqualand, South Africa"Mem. Natl Inst. Polar Res.. Spec. Issue, 55. 87-104 (2001)
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Publications] Hokada, T., Motoyoshi, Y., Hiroi, Y., Shimura, T., Yuhara, M., Shiraishi, K., Grantham, G. H., and Knoper, M. W.: "Petrography and mineral chemistry of politic gneisses and related rocks from Namaqualand, South Africa"Mem, Natl Inst. Polar Res.. Spec. Issue, 55. 105-126 (2001)
Description
「研究成果報告書概要(欧文)」より
Related Report
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