浙江省淳安县银山银多金属矿床地质地球化学特征及成因探讨  

Geochemistry and Genesis of the Yinshan Silver Polymetallic Deposit in Chun′an County,Zhejiang Province

作　　者：周乐尧 吴光明[2] 刘荣 钱俊锋 徐菲琪 

机构地区：[1]浙江省地质矿产研究所,杭州310007 [2]浙江省第一地质大队,杭州310000

出　　处：《地质科技情报》2013年第2期112-117,共6页Geological Science and Technology Information

基　　金：浙江省重大科技专项重点社会发展项目"浙江省成矿构造环境与金属矿床找矿新方法"(2010C03004)

摘　　要：银山银多金属矿床主要赋存于震旦系蓝田组中。地层岩石和地球化学研究表明,矿区蓝田组沉积期间存在3个热水沉积阶段,银多金属矿床是由于热水沉积作用经后期构造叠加改造而成。区域断裂带及其两侧具有热水沉积作用特征岩石组合(含锰白云岩+硅质泥岩、粉砂岩+含硅白云质灰岩)的蓝田组是寻找本类矿床的最佳区段。The Yinshan silver polymetallic deposit occurs in the Lantian Formation.Petrological and geochemical analyses show that there are three hydrothermal sedimentary stages and the Yinshan silver polymetallic deposit was formed from hydrothermal sedimentation and later structural reactivated superposition.Based on regional fault zones and its bilateral rock association with hydrothermal sedimentary features（dolomite with manganese＋siliceous mudstone,siltstone＋dolomitic limestone with silica） in the Lantian Formation,we can delineate the most favorable mining area.

关 键 词：银山银多金属矿床 蓝田组 热水沉积 

分 类 号：P618.52[天文地球—矿床学]