摘要
新疆准噶尔北部产有各种类型的原生金矿床， 本文将其划分为浅成低温热液型、微细粒浸染型、韧性剪切带蚀变岩型、浅成岩蚀变岩型、变质热液改造型等成矿类型． 本区金矿主要受控于晚古生代的碰撞造山作用、石炭纪－二叠纪为其最主要的成矿时期， 并建立了相应的成矿模式．
In northern Junggar,there exist all kinds of primary gold deposits,which could be divided into five minerogenetic kinds known as epithermal gold deposits,micro finegranular dissemination gold deposits,altered rock gold deposits hosted by ductile shear belts,altered rock gold deposits related to some supergene rocks and metamorphic hydrothermal reformed gold deposits.By the means of analysing their minerogenetic characteristics and studying their ore forming environment,e.g.,tectonic backgrounds,host strata and gold bearing formations,intrusive rocks,sources of ore,superficial alteration and so on,the authors conclude that these gold deposits are mainly controlled by collision orogenes of Late Paleozoic and their main mineralizing epoch is from Carboniferous to Permain,and found a general mineralization model related to gold deposits in this region.
基金
八五"国家三○五项目
关键词
金矿床
成矿类型
成矿特征
成矿环境
成矿模式
gold deposits
minerogenetic kinds
minerogenetic characteristics
minerogenetic environment
mineralization model
northern Junggar
Xingjiang
