Tectonic significance of the Meso- to Neoarchean complexes in the basement of the southern Brasilia Orogen

Precambrian Research(2016)

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摘要
•Mesoarchean TTG-type magmatism at 2.96–3.00Ga.•Coeval occurrence of low- and high-pressure TTGs.•Neoarchean granitic magmatism at 2.76Ga records the transition from TTGs to granites.•The granitic magmatism is most likely a result of reworking of a Mesoarchean TTG crust.
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关键词
neoarchean complexes,tectonic significance
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