陕西秦岭曹坪花岗岩的构造环境及含矿性  

TECTONIC ENVIRONMENT AND ORE-GENERATING INTRUSION OF THE CAOPING GRANITE IN QINLING

作　　者：印纯清[1] 

机构地区：[1]中国地质大学矿产系

出　　处：《地球科学（中国地质大学学报）》1993年第1期21-27,共7页Earth Science-Journal of China University of Geosciences

基　　金：陕西省地矿局K88-02项目资助

摘　　要：本文通过对陕西秦岭曹坪花岗岩的岩体地质、岩石学、岩石化学、微量元素、铅同位素特征研究认为:(1)曹家坪岩体是正常系列的钙碱性花岗岩;(2)本岩体为Ⅰ型花岗岩,其成因与造山作用有关;(3)判别出雪花沟岩体和谢家沟岩体含矿性较好。Caoping intrusive body outcrop on the whole takes the shape of E-W trending irregular ellipse. which was formed by intrusion of magma in the Indosinian period. This paper deals with the characteristics of the rock mass geology, petrology, petrochemistry, trace elements, lead isotope of the Caoping granite in the Qinling. Primary conclusions are as follows: 1. The Caoping intrusive body is alkali-calcic granite; 2. The Caoping intrusive body is of f1-type granite. The genesis of the rock is associated with the orogenesis; 3. The Xuehuagou and Xiejiagou granites are judged as ore-generating intrusion.

关 键 词：花岗岩 构造环境 含矿性 铅同位素 

分 类 号：P588.121[天文地球—岩石学]