摘要
区内岩性赋存于下奥陶统阴沟群上亚群(O_(1)yn^(2)),赋矿围岩主要为英安岩和安山岩。含矿岩性上部为安山岩下部为英安岩,矿体形态呈扁平透镜状、脉状。近矿围岩具绿帘石化、黄铁矿化、褐铁矿化、绿泥石化、硅化、孔雀石化、碎裂岩化、蓝铜矿化等。通过研究矿区岩石、矿石特征与成矿的关系为下一步地质工作提供依据。
Lithology in this area occurs in the upper subgroup(O_(1)yn^(2))of the Lower Ordovician Yingou Group,and the surrounding rock of ore-bearing is mainly British andesite.The upper part of ore-bearing rock is andesite and the lower part is angiosite,and the shape of orebody is flat and penetrating mirror and vein.There are green curtain petrifaction,pyrite,limonite,chlorite,silicification,malachite,cataclastic,blue copper mineralization and so on.This paper provides the basis for the next geological work by studying the relationship between rock,ore characteristics and mineralization in mining area.
作者
程健博
CHENG Jian-bo(Gansu Nonferrous Metals Geological Exploration Bureau Zhangye Mineral Exploration Institute,Zhangye 734000,China)
出处
《甘肃冶金》
2021年第2期111-113,116,共4页
Gansu Metallurgy
关键词
老君庙
构造
岩石
矿石
laojunmiao
tectonics
rock
ore
