论地洼型砂岩铜、银矿床的成矿模式  

A NEW MODEL OF MINERALIZATION FOR SANDSTONEHOSTED COPPER-SILVER DEPOSITS

作　　者：徐一仁[1] 张素华[1] 徐晓燕[2] 

机构地区：[1]浙江师范大学地理系,金华321004 [2]浙江大学,杭州310013

出　　处：《大地构造与成矿学》1998年第2期170-176,共7页Geotectonica et Metallogenia

摘　　要：分析了构造、储矿砂体、地下水活动三个相关地质因素对砂岩铜、银矿床的控制作用，从而建立了以地下水活动为主导的地洼型砂岩铜、银成矿模式。根据构造和矿体特征，将其划分为两个亚模式-褶皱控制模式和断裂控制模式，并阐明了该模式的意义，及其在找矿中的指导作用。On the basis of practice of prospecting for twenty years, the paper discusses the formation of sandstone-hosted copper-silver deposits and puts up a new mechanism consisting of structure, ore-hosting sand-body and movement of subterranean water. It has analysed the above three geological factors. Their organic combination exerts control on sandstone-hosted copper-silver deposits.Thus a new model of mineralization is proposed with movement of subterranean water as the leading factor.This model may be divided into two submodels:'fold control model' and 'fracture control model'.Its significance and guiding effect on prospecting are expounded.

关 键 词：铜矿床 银矿床 砂岩型矿床 成矿模式 

分 类 号：P618.410.5[天文地球—矿床学] P618.520.5[天文地球—地质学]