吉林省海沟金矿区围岩蚀变特征  

The country rock alteration characteristics of the Haigou Au deposit,Jilin Province

作　　者：刘劲鸿[1] 

机构地区：[1]吉林省地质矿产勘查开发局,吉林长春130061

出　　处：《吉林地质》2002年第3期15-21,共7页Jilin Geology

摘　　要：通过专题研究 ,首次识别出矿体围岩二长花岗岩为交代蚀变成因 ,其原岩是石英二长岩和石英闪长岩 ;分辨出 6种蚀变类型、存在成矿前、成矿期和成矿后 3个蚀变阶段 ,先后发生 8次蚀变 ;基本查清了它们的蚀变强度、蚀变类型组合及分布规律。Through the monographic study,it is the first time to find out adamellite of the surrounding rocks in the Haigou Au deposit,showing metasomatic alteration origin The original rocks are quartz monzonite and quartz diorite Total 6 altered types are distinguished,3 altered stages(before the mineralization,mineralization period and after the mineralization),with the alterations of 8 times were occurred It gets a clear understanding for altered intensity type and distributive law

关 键 词：吉林 蚀变特征 围岩 金矿床 成矿作用 分布规律 

分 类 号：P618.51[天文地球—矿床学]