甘肃成县庙沟—大沙湾铅锌矿区成矿地质特征及找矿方向  

Geological characteristics and prospecting direction of Miaogou-Dashawan Pb-Zn property in Cheng county,Gansu

作　　者：沈利霞[1] 胡建勇[1] 张瑞华[1] 张连营[1] 金文强[1] 李宗谨 

机构地区：[1]天津华北地质勘查局,天津300170

出　　处：《地质找矿论丛》2015年第1期92-97,共6页Contributions to Geology and Mineral Resources Research

基　　金：天津华北地质勘查局科研项目"甘肃省成县庙沟-大沙湾一带铅锌矿床成矿规律研究及找矿模型建立"资助

摘　　要：甘肃成县庙沟—大沙湾铅锌矿区位于西秦岭多金属成矿带西段的西成铅锌矿田内,矿区的铅锌矿化受安家岔组条带状大理岩化灰岩和条带状大理岩的控制,喷流沉积(成岩)作用是成矿的主要因素,为喷流沉积的SEDEX型矿床,同生沉积特征明显,具热水沉积特征,发育有硫化物岩、重晶石岩、硅质岩等。预测靶区为马蹄沟一带近EW向岩相突变带。Miaogou-Dashawan lead-zinc property is located in Xicheng Pb-Zn ore field in west part west Qinling multi-metal ore belt. Mineralization is controlled by banded marbleized limestone and b marble. Sedex is the main metallogenic factor. SEDEX feature is clear characterized by hot water mentation and development of sulfide rock, barite rock and siliceous rock. SEDEX type deposit may and it is predicted at abrupt facies change zone near Matigou.

关 键 词：庙沟—大沙湾铅锌矿 找矿方向 喷流沉积(SEDEX)型 甘肃省 

分 类 号：P613[天文地球—矿床学] P618.4[天文地球—地质学]