广东省饶平县旗山锡矿床地质特征及成因探讨

GEOLOGY AND GENESIS OF THE QISHAN STANNUM DEPOSIT IN RAOPING COUNTY, GUANGDONG PROVINCE

旗山锡矿是与燕山三期花岗斑岩有关的岩浆期后热液充填的脉状锡矿床,矿床地质特征是矿体呈脉状、透镜状或分支复合状,锡石硫化物矿石,围岩蚀变主要为云英岩化、绢云母化、弱绿泥石化.通过对矿床的成因进行探讨,为寻找同类型矿床提供找矿思路.

The Qishan Sn deposit is of post-magmatic hydrothermal infilling vein type, associated with the Yanshanian granite-porphyry. The ore bodies shape as veins and lens or compound of branches, with cassiterite-sulfide ores. The wall rock alteration involves greisenization, sericitization and chloritization. The study of the genesis of this deposit would provide a reference for searching of the ore deposits of the kind.