Constraining different metamorphic and igneous events in Higher-Himalayan Crystalline rocks, Bhagirathi Valley, India from U-Pb zircon geochronological data

Chatterjee Sukalpa; Das Kaushik; Xu Chu

doi:10.14824/jakoka.2018.0_175

日本鉱物科学会 2018年年会

セッションID: R8-06

DOI https://doi.org/10.14824/jakoka.2018.0_175

会議情報

主催: 日本鉱物科学会

R8：変成岩とテクトニクス

Constraining different metamorphic and igneous events in Higher-Himalayan Crystalline rocks, Bhagirathi Valley, India from U-Pb zircon geochronological data

Chatterjee Sukalpa, *Das Kaushik, Xu Chu

著者情報

キーワード: Higher Himalayan Crystalline, Gangotri Leucogranite, Bhaironghati Granite, Augen gneiss, U-Pb zircon ages

会議録・要旨集フリー

詳細

抄録

We report the U-Pb zircon ages from augen gneiss and associated granite and leucogranites from Higher Himalayan Crystalline rocks, Bhagirathi Valley, Garhwal Himalaya, India. The age data reveals a Cambro-Ordovician high-grade metamorphic event and coeval felsic magmatism indicating the pre-Himalayan history. The garnet-bearing leucogranite veins intruding the augen gneiss shows a possible melting of source rock and subsequent garnet overgrowth and concomitant zircon growth at early Miocene age.

責任著者(Corresponding author)

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