Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences
2014 Annual Meeting of Japan Association of Mineralogical Sciences
Session ID : R1-P01
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R1: Characterization and description of minerals
Morphological study of fluid inclusion using FIB-XCT technique.
*Kenta YoshidaTakao HirajimaAkira MiyakeAkira TsuchiyamaShugo OhiTsukasa NakanoKentaro Uesugi
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Abstract

Morphological study was performed on a quartz-hosted fluid inclusion collected from the Sanbagawa metamorphic belt, by using a Focused Ion Beam micro-sampling and X-ray CT (BL47XU, SPring-8). The observed shape of the inclusion appears “negative crystal” of the quartz, satisfying the law of constancy of interfacial angles of alpha-quartz. Based on the liquid/bubble ratio of CT-volumetric data, we estimated the bulk density of the inclusion which would preserve the density at 300ºC (Küster & Stöckhert, 1997). The estimated density (260MPa at 300ºC) is consistent with exhumation P-T path (>400ºC) of previous studies.

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© 2014 Japan Association of Mineralogical Sciences
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