Early Paleoproterozoic tectono-magmatic and metamorphic evolution of the Yuanmou Complex in the southwestern Yangzte Block

Xuemei Cheng,Shuyun Cao,Junyu Li,Yanlong Dong,Franz Neubauer, Meixia Lvy, Shuting Wang

Precambrian Research（2022）

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摘要

•Magmatic-origin zircons have ages of 2500–2300 Ma in the Yuanmou Complex.•Ages of 2200–1770 Ma corresponds to assembly of Columbia supercontinent.•Zircon rims have the metamorphic ages of 860–750 Ma related to crustal anatexis.

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关键词

Paleoproterozoic,Partial melting,Yangtze Block,Columbia supercontinent,Rodinia supercontinent

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