Trace element and Nd isotope analyses of apatite in granitoids and metamorphosed granitoids from the eastern Central Asian Orogenic Belt: Implications for petrogenesis and post-magmatic alteration

Xin-Yu Long,Jie Tang,Wen-Liang Xu,Chen-Yang Sun,Jin-Peng Luan,Shuai Xiong,Xiao-Ming Zhang

Geoscience Frontiers（2023）

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摘要

•Geochemical compositions of apatite can be modified by post-magmatic alteration.•Geochemistry of igneous apatite is an effective tracer of granitoid petrogenesis.•Unusual geochemical features of apatite record small-scale crustal assimilation.

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关键词

Eastern CAOB,Granitoid petrogenesis,Apatite geochemistry,Fluid-induced alteration,Nd–Hf isotopic decoupling,Crustal assimilation

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