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地质学报  2006 

云南大平糜棱岩化碱性花岗岩岩石地球化学特征及成因讨论

, PP. 287-293

Keywords: 成因和地球化学,糜棱岩化,碱性花岗岩,金平县大平,云南

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Abstract:

本文在野外工作基础上,系统研究了云南大平糜棱岩化碱性花岗岩岩石结构构造、矿物组成、主微量元素和锆石特征等。根据岩体本身还残留有层理,在糜棱岩化之前的岩石具花岗变晶结构和含有反映区域变质成因的钠铁闪石造岩矿物,以及锆石高度富集和显示有一定层位等,认为云南大平糜棱岩化碱性花岗岩为沉积变质成因。

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