Eclogitic metabasite as a block within the serpentinite body in the Gotsu area, Suo metamorphic belt, SW Japan

Md Fazle Kabir; Akira Takasu; Shunsuke Endo

doi:10.14824/jakoka.2017.0_190

Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences

2017 Annual Meeting of Japan Association of Mineralogical Sciences

Session ID : R8-08

DOI https://doi.org/10.14824/jakoka.2017.0_190

Conference information

Host: Japan Association of Mineralogical Sciences

R8: Metamorphic rocks and tectonics

Eclogitic metabasite as a block within the serpentinite body in the Gotsu area, Suo metamorphic belt, SW Japan

*Md Fazle Kabir, Akira Takasu, Shunsuke Endo

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Keywords: Suo metamorphic belt, Gotsu area, omphacite, eclogite, serpentinite body

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Abstract

One small block of eclogitic metabasite occurs within the serpentinite body, and it is a first discovery of eclogite evidence in the Gotsu area. Garnet, omphacite, glaucophane, and phengite are the constituents of the peak metamorphic stage, and these suggest eclogite facies metamorphic condition. The garnet-clinopyroxene exchange geothermometer and garnet-clinopyroxene-phengite geobarometer yielded 540-550 °C and 19 kbar for the peak metamorphic stage.

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