甘肃省后驮阳沟金矿控矿因素及成因类型分析  

Analysis on ore controlling factors and genetic types of Houtuoyanggou gold deposit in Gansu Province

作　　者：余良 任少龙 沈作刚 YU Liang;REN Shao-long;SHEN Zuo-gang(Gansu Brach of China National Geological Exploration Center of Building Materials Industry,Tianshui 741000,China)

机构地区：[1]中国建材地质勘查中心甘肃总队,甘肃天水741000

出　　处：《世界有色金属》2023年第8期78-80,共3页World Nonferrous Metals

摘　　要：后驮阳金矿为近年来发现的中小型金矿。矿体产于秦岭造山带志留系-奥陶系丹凤群浅灰色石英夹绢云石英片岩、灰褐色绢云母石英片中。丹凤群和附近的侵入岩浆提供成矿物质来源,变质热液和附近的岩浆热液提供成矿热动力,断裂构造为矿液提供运移通道和储矿空间,为一受断裂、岩浆活动、地层富矿物质影响的复合热液型矿床。Houtuoyang gold deposit is a small and medium-sized gold deposit discovered in recent years.The ore body occurs in the light gray quartz mixed with sericite quartz schist and gray brown sericite quartz sheet of the Silurian Ordovician Danfeng Group in the Qinling orogenic belt.The Danfeng Group and the nearby intrusive magma provide the source of ore-forming materials,the metamorphic hydrothermal solution and the nearby magmatic hydrothermal solution provide the ore-forming thermal power,and the fault structure provides the migration channel and ore storage space for the ore fluid,which is a composite hydrothermal ore deposit affected by the fault,magmatic activity,and ore rich materials in the stratum.

关 键 词：秦岭造山带 丹凤群 复合热液型金矿 后驮阳 

分 类 号：P618.51[天文地球—矿床学]