荥经县山溪林铜矿地质特征及找矿方向分析  

Geological Features and Range of Reconnaissance of the Shanxilin Cu Deposit in Yingjing,Sichuan

作　　者：熊英禾 倪帆 刘勇[1] XIONG Ying-he;NI Fan;LIU Yong(Regional Geological Surveying Team,BGEEMRSP,Chengdu 610213)

机构地区：[1]四川省地质矿产勘查开发局区域地质调查队,成都610213

出　　处：《四川地质学报》2021年第S02期41-45,共5页Acta Geologica Sichuan

摘　　要：山溪林铜矿位于荥经-汉源Pb-Zn-Cu-Mn成矿远景区,矿体赋存于二叠系上统峨眉山玄武岩(P2β)的断裂破碎带中,矿体走向长度约293m,矿体倾向310°~325°,倾角60°~70°,单工程矿体厚度约0.74~3.98m,平均厚2.82m,自西向东逐渐变薄,单工程铜品位0.58%~2.49%,平均约1.86%,矿层内部结构单一,无夹层。山溪林铜矿属于中低温热液型铜矿,受峨眉山玄武岩和断裂构造控制,在玄武岩分布区寻找断层破碎带,这是未来的重点找矿方向。同时,该矿向深部并未尖灭,应继续沿深部开展追索,必要时使用激发极化法寻找隐伏矿体。The Shanxilin Cu deposit in Yingjing,Sichuan lies in the Yingjing-Hanyuan Pb-Zn-Cu-Mn metallogenic prospective area.The Cu orebody is confined to shattered fault zone of the Upper Permian Emeishan basalt with a length of 293 m,dip direction of 310°~325°and a dip angle of 60°~70°and a thickness of 0.74~3.98 m with an average of 2.82 m.The Cu orebody is thinned eastwards.Ore grade is 0.58%~2.49%Cu with an average of about 1.86%Cu.The inner structure of the orebody is single without intercalation.This is a mesothermal and epithermal Cu deposit controlled by the Emeishan basalt and fault.The shattered fault zones of the Upper Permian Emeishan basalt are range of reconnaissance in the future.The orebody has not yet tapered toward the depth,if necessary,IP method can be used to search for concealed ores.

关 键 词：山溪林 铜矿 地质特征 找矿方向 

分 类 号：P618.4[天文地球—矿床学]