摘要
本文以隆化县郭家屯铅锌矿为研究对象,矿区属于张北-隆化成矿区,矿区北西侧为马道火山盆地南西侧为花吉营火山盆地。本区处于康保-围场、丰宁-隆化东西向深大断裂(区域图外)之间,乌龙沟-上黄旗大断裂北东向斜穿本区。由于受其所处大地构造位置影响,中生代以来,本区岩浆活动强烈,断裂构造极为发育,派生出了一系列方向不同、性质各异、规模不等的次级断裂构造。区内出露地层相对较为简单,中生代火山-沉积地层是本区地层主体组成部分,其次是第四系松散堆积物沿沟谷分布。矿石矿物主要成份:黄铁矿、白铁矿、闪锌矿、方铅矿、黄铜矿。围岩蚀变主要有:绢英岩化、硅化、黄铁矿化、萤石化及碳酸盐化。其中:绢英岩化和黄铁矿化与成矿关系最密切,其次为硅化。
This paper research on the Longhua County Guojiatun lead zinc ore, and it belongs to ZhangBei-long hua metallogenic province, in north west of the mine lot is the Madao volcanic basin and south west is HuaJiying volcanic basin. This field located in Kangbao-Weichang fengning-Longhua deep fracture, as being influenced by tectonic structure, from Mesozoic now on, the magmation is intensity,and fault structure is growth. Derived a lot of secondary faults in different directions .the strata in this field is simple,Mesozoic volcano-sedimentary strata is the main constituent part in this field, ore mineral are： pyrite, marcasite, blende, copper pyrites. Wall rock alteration mainly are： sericitization, silieification, pyritization, fluoritization, carbonatation.among them, sericitization and pyritization are the most closely, silicification is the secondarv.
出处
《四川有色金属》
2013年第3期18-21,共4页
Sichuan Nonferrous Metals
关键词
郭家屯
成矿区
断裂构造
围岩蚀变
Guojiatun
metallogenic province
fracture
wall rock alteration
