晋东北地区银矿床类型及成矿机制  

Silver Ore Deposit Type and Its Metallogenic Mechanism in Northeast Shanxi

作　　者：赵英福[1] 张连营[1] 李兆龙[2] 

机构地区：[1]天津华北地质勘查总院,天津300170 [2]中钢集团天津地质研究院,天津300061

出　　处：《矿产与地质》2011年第4期286-289,共4页Mineral Resources and Geology

摘　　要：银矿床类型和矿床地质特征研究表明,晋东北地区银矿主要成因类型为与火山作用有关的中低温热液银矿床(包括石英脉型银矿、火山岩型银矿、(隐)爆破角砾岩型银矿),其次为接触交代矽卡岩型银矿、层控银锰矿床(包括氧化淋滤型锰银矿和铁锰帽型银锰矿)。银的主要成矿期为燕山期。在沉积作用、火山-次火山热液作用和地表氧化淋滤作用条件下形成了系列银矿床。Research on silver ore deposit type and geological characteristics of the ore deposit shows that the main genetic types of silver deposits in northeast Shanxi are medium to lower temperature hydrothermal de- posit type associated with volcanic process including quartz-vein type silver deposit, volcanic type silver de- posit, cryptoexplosion breccia type silver deposit）, and contact metasomatism skarn type silver deposit, stratabond silver and manganese ore deposit including oxidation leaching type manganese and silver deposit and iron-manganese stain silver and manganese deposit. The major metallogenic period is Yanshanian. A se- ries of silver deposits were formed through volcanic to sub-volcanic hydrothermal process and oxidation and leaching process on the earth surface.

关 键 词：银矿床 成因类型 成矿机制 晋东北 

分 类 号：P518.52[天文地球—地质学]