四川越西县约火山硫铁矿地质特征及矿床成因  

THE GEOLOGICAL FEATURE AND GENSIS OF YUEHUOSHAN PYRITE DEPOSIT IN YUEXI,SICHUAN

作　　者：罗兴海 LUO Xing-hai(Sichuan Exploration&Development Bureau of Geology&Mineral Resources,Leshan 614800)

机构地区：[1]四川省地质矿产勘查开发局207地质队,四川乐山614800

出　　处：《云南地质》2021年第2期242-246,共5页Yunnan Geology

摘　　要：四川越西县约火山硫铁矿,矿体呈层状、似层状赋存于震旦系灯影组一段(Z€d^(1))硅质白云岩夹硅质岩的层间破碎带中,矿体与围岩界线较为明显。成矿物质来源于火山碎屑岩和碳酸盐岩之间的古风化壳,在后期热液的交代过程中,矿物质富集并形成可供开发的工业矿体。该硫铁矿成因类型为热液充填交代型硫铁矿.The orebody of Yuehoushan pyrite deposit inYuexi,Sichuan is bedded,stratoid in the interlayer fracture zone of Sinian Dengying Formation Member 1(Z∈d^(1))siliceous dolomitite with intercalation of silicalite.The boundary line between orebody and wall rock is clear..The metallohgenesis material is originated from the paleo-weathering crust between volcanic clastic rock and carbonate rock.In the later hydrothermal metasomatism,the ore material is concentrated and the commercial orebody is formed.It is a hydrothermal filling metasomatic pyrite deposit in genesis.

关 键 词：构造控矿 热液型矿床 四川越西约火山 

分 类 号：P619.216[天文地球—矿床学]