西南天山新生代层控砂岩型铜矿成矿地质特征

Geological characteristics of Cenozoic stratabound sandstone type copper deposits in northwest margin of Tarim Basin

西南天山乌恰-西克尔-库车地区为塔里木盆地西北缘新生代层控砂岩型铜矿的重要产出地区。本文以实际调查为基础,综合分析了该区成矿地质背景,将该区新生代层控砂岩型铜矿划分为伽师式、花园式和滴水式这三种类型。认为其成因分别为沉积-构造叠加改造、同生沉积及沉积-盐丘构造叠加改造,分别建立了各类型铜矿的成矿模式。

Wuqia-Xiker-Kuqaarea in southwest Tianshan is an important area of Cenozoic stratabound andstone type copper deposits in northwest margin of Tarim Basin.Based on the comprehensive analysis of metallogenetic geological setting and geological features,the Cenozoic stratabound sandstone type copper deposits are divided into Jiashi type,Huayuan type and Dishui type.The genesis of these deposits are sedimentarystructural superimposed reformation,syngenetic sedimentation and sedimentary-salt dome structural superimposed reformation.