辽宁阜新黑虎洞矿区石英脉型金矿地质特征及找矿方向

Geological Characteristics and Prospecting Direction of Quartz Vein Type Gold Deposits in Heihudong Mining Area,Fuxin,Liaoning Province

大巴-瓦子峪-后三角韧性剪切带是辽西著名的金矿成矿带,本文以阜新黑虎洞石英脉型金矿为例,阐述石英脉型金矿构造背景、地质特征、矿体特征、矿物组合及围岩蚀变等。矿体受断裂控制,矿体呈脉状、似层状、透镜状展布,矿石矿物主要为黄铁矿,围岩蚀变主要有硅化、绢云母化、绿泥石化、碳酸盐化,其中硅化、黄铁矿化与金成矿关系密切。最后总结矿区内含金石英脉矿床成因和找矿标志,指明了找矿方向。

The Daba-Waziyu-Housanjiao ductile shear zone is a famous gold metallogenic belt in western Liaoning.Taking the Heihudong quartz vein type gold deposit in Fuxin as an example,this paper expounds the structural background,geological characteristics,ore body characteristics,mineral assemblage and wall rock alteration of the quartz vein type gold deposit.The ore body is controlled by faults.The ore body is vein,layered and lenticular.The ore minerals are mainly pyrite.The wall rock alteration mainly includes silicification,sericitization,chloritization and carbonation.The silicification,pyritization and gold mineralization are closely related.Finally,the genesis and prospecting criteria of gold quartz vein deposits in the mining area are summarized,and the prospecting direction is pointed out.