安徽省凤阳县小陈家金矿点地质特征及矿床成因  

Geological characteristics and genesis of xiaochenjia gold deposit in Fengyang County, Anhui Province

作　　者：张辰晨 ZHANG Chen-chen(August 11 geological team of East China Metallurgical Geological Exploration Bureau,Chuzhou 239000,China)

机构地区：[1]华东冶金地质勘查局八一一地质队,安徽滁州239000

出　　处：《世界有色金属》2021年第6期77-78,共2页World Nonferrous Metals

摘　　要：小陈家金矿点位于蚌埠隆起花园湖段核部,含矿层位为峰山李岩组(Pt1f)角闪斜长片麻岩、变粒岩、浅粒岩夹石英脉。地层片理走向近东西,南部倾向南,北部倾向北,倾角60°~80°,矿区见东西向、北北东向压扭性断裂构造。矿体赋存于北北东向石英脉中,围岩蚀变以褐铁矿化,绢英岩化为主,成矿类型为石英脉型金矿。Xiaochenjia gold deposit is located in the core of Huayuanhu section of Bengbu uplift.The ore bearing horizon is hornblende plagioclase gneiss,granulite and shoshonite with quartz vein of fengshanliyan formation(Pt1f).The strike of stratum schistosity is nearly east-west,the South inclines to the south,the North inclines to the north,and the dip angle is 60°to 80°in the mining area.The orebody occurs in the NNE quartz vein.The wall rock alteration is dominated by limonitization and sericitization.The mineralization type is quartz vein type gold deposit.

关 键 词：金矿 石英脉 矿床成因 

分 类 号：P618.2[天文地球—矿床学]