Early Neoproterozoic metagabbro-tonalite-trondhjemite of Sør Rondane (East Antarctica): Implications for supercontinent assembly

Marlina A Elburg,Joachim Jacobs,Tom Andersen, Chris Clark,Andreas Laufer,Antonia Ruppel,Nicole Krohne,Detlef Damaske

Precambrian Research（2015）

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摘要

•The ca. 1Ga meta-igneous rocks of the Sør Rondane Mountains (E. Dronning Maud Land, Antarctica) were generated in an oceanic arc setting.•Subduction halted around 950Ma, giving rise to more diverse magmatism.•Igneous ages and isotopic characteristics suggest a pre-Gondwana connection to India-Sri Lanka-Madagascar.

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关键词

Antarctica,Rodinia,Gondwana,Oceanic arc,Zircon U–Pb Lu–Hf

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