The Nui Chua layered peridotite-gabbro complex as manifestation of Permo-Triassic mantle plume in northern Vietnam |
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| Authors: | GV Polyakov RA Shelepaev Tran Trong Hoa AE Izokh PA Balykin Ngo Thi Phuong Tran Quoc Hung Bui An Nien |
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| Institution: | 1. Sobolev Institute of Geology and Mineralogy, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia;2. Geological Institute of the Vietnamese Academy of Sciences and Technologies, Hanoi, Vietnam |
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| Abstract: | New data on the age, composition, formation conditions, and ore-geochemical specialization of the Nui Chua layered peridotite-gabbro complex are reported. They evidence that the complex resulted from the Permo-Triassic mantle plume activity in northern Vietnam (southern framing of the Yangtze Platform). Two series of mafic and ultramafic rocks differing in ore productivity—layered (PGE-Cu-Ni) and pegmatoid (Fe-Ti-V)—have been recognized within the complex. The first estimates of the composition of their parental melts have been obtained. |
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