甘肃厂坝铅锌矿床地质特征及控矿因素分析  

The geological characteristics and control of mineral factors analysis of Changbalead and zinc deposit in Gansu

作　　者：张玉辉 ZHANG Yu-hui(The Second Geological Mineral Exploration Institute of Gansu Provincal Geology and Mineral Bureau,Lanzhou 730020,China)

机构地区：[1]甘肃省地质矿产勘查开发局第二地质矿产勘查院

出　　处：《世界有色金属》2019年第22期97-97,99,共2页World Nonferrous Metals

摘　　要：厂坝铅锌矿床包括厂坝、小厂坝、李家沟铅锌矿,累计提交铅锌资源量千万余吨,区域找矿潜力巨大。厂坝铅锌矿床受中泥盆统安家岔组厂坝层控制明显,显示出同生沉积成矿的特征;同时,矿床受后期岩浆期后热液叠加改造、变质热卤水叠加改造以及次生淋滤富集作用明显,含矿热液容易在背斜顶部、转折端等虚脱部位富集成矿;厂坝地区中泥盆统安家岔组厂坝层与印支期中酸性岩浆岩耦合的区域是有利的找矿区域。Changba lead and zinc deposits including Changba,small Changba,Lijiagou lead and zinc ore,the cumulative submission of lead and zinc resources of more than 10 million tons,the potential for regional prospecting potential.Changba lead and zinc deposits by the mud basin of the whole home branch group plant dam layer control is obvious,showing the characteristics of hospitable mineralization,at the same time,the deposit by the late magma period hydrothermal superposition transformation,metamorphic hot brine superposition transformation and secondary gonorrhea filter enrichment effect is obvious,including mineral hydrothermal easily in the back slope top,turning point and other virtual parts of the integrated ore;The area where the Changba layer of the mud basin in the Changba area and the acidic magma rock in the indoch period are the area of favorable prospecting area.

关 键 词：厂坝铅锌矿 地质特征 控矿因素 

分 类 号：P618.42[天文地球—矿床学]