吉林省东部金仓地区变质地层特征及找矿意义

Metamorphic stratigraphic characteristics in theJincang area,eastern part of Jilin province and its significance in prospecting

吉林省汪清东北部发育一套中浅变质岩系 ,前人一般认为属早二叠世。笔者从岩石学、矿物学、变质变形特征入手 ,探讨了变质岩的成岩环境 ,阐述了可以与新元古代五道沟群对比的依据。并根据地层 ,侵入体特征及地球化学、地球物理等资料 ,初步分析了找矿前景 ,拓宽了该地区金矿的找矿思路。

A series of medium-shallow metamorphic rocks are developed in the northeastern part of the Wangqing,Jilin province. The formers considered that it belongs to the early Permian. According to the petrology, mineralogy, metamorphic and deformational characteristic, the diagenic setting of the metamorphic rock is discussed. It can compare with the Wudaogou Group, Neoproterozoic. On the basis of characteristics of strata, intrusive, geochemistry, and geophysics, this paper describes the exploration prospect.