2007 Fiscal Year Final Research Report Summary
UHT metamorphism and fluids of the Gondwana collision zone
| Project/Area Number |
17340158
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Petrology/Mineralogy/Science of ore deposit
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| Research Institution | University of Tsukuba |
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Principal Investigator |
TSUNOGAE Toshiaki University of Tsukuba, Graduate School of Life and Environmental Sciences, Associate Professor (50252888)
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| Co-Investigator(Kenkyū-buntansha) |
SANTOSH M. Kochi University, Faculty of Science, Professor (20333453)
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| Project Period (FY) |
2005 – 2007
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| Keywords | Gondwana Supercontinent / Granulite / Fluid inclusion / Ultrahigh-temperature metamorphism / Continental Crust / Origeny |
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| Research Abstract |
This study carried out detailed petrological and fluid inclusions studies of high-grade metamorphic rocks from South India, Antarctica, and South Africa as well as related regions, that underwent extreme crustal metamorphism at more than 1000 degree. Based on detailed mineralogical and textural observations, we could constructed metamorphic pressure and temperature paths of individual regions, and successfully discussed the origin of the high-grade terranes related to the assembly of supercontinents such as Gondwana. We further performed fluid inclusion study of the rocks and identified CO2-rich fluid inclusions trapped during the growth of minerals. Our further studies on such CO2-rich inclusions indicate that CO2 was derived from mantle and the fluid probably played an important role on stabilizing the dry mineral assemblages in the UHT rocks.
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[Journal Article] Petrology, fluid inclusions and metamorphic history of Bhopalpatnam granulites, central India2006
Author(s)
Santosh, M., Tsunogae, T., Iki, T., Vansutre, S. and Hari, K. R.
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Journal Title
Journal of Asian Earth Sciences 28(1)
Pages: 81-98
Description
「研究成果報告書概要(欧文)」より
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[Journal Article] Carbonic fluids in ultrahigh-temperature metamorphism : evidence from Raman spectroscopic study of fluid inclusions in granulites from the Napier Complex, East Antarctica
Author(s)
Tsunogae, T., Santosh, M., Dubessy, J., Osanai, Y., Owada, M., Hokada, T., and Toyoshima, T.
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Journal Title
Special Publication of the Geological Society of London (in press)
Description
「研究成果報告書概要(欧文)」より
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[Presentation] (2007) C02+carbonate inclusions in UHT metamorphic rocks2007
Author(s)
Tsunogae, T., Dubessy, J., Osanai, Y., Owada, M., Hokada, T., and Toyoshima, T.
Organizer
GSJ Annual Meeting
Place of Presentation
Sapporo
Year and Date
2007-09-11
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Crustal anatexis caused by input of basaltic magma derived from metasomatized mantle in collision zone, the Kontum Massif, central Vietnam2006
Author(s)
Owada, M., Osanai, Y, Nakano, N., Hokada, T, Tsunogae, T., and Kangami, H.
Organizer
IAGR Annual Convention &International Symposium 2006
Place of Presentation
Hong Kong
Year and Date
2006-12-10
Description
「研究成果報告書概要(欧文)」より
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[Presentation] Fluid inclusions in ultrahigh-temperature granulites from Priestley Peak in the Napier Complex, East Antarctica2006
Author(s)
Tsunogae, T., Osanai, Y., Owada, M., Toyoshima, T., Hokada, T., and Crowe, W. A.
Organizer
The 26th Symposium on Polar Geosciences
Place of Presentation
Tokyo
Year and Date
2006-10-12
Description
「研究成果報告書概要(欧文)」より
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