扬子地台康滇地轴中段东缘铜矿成矿作用研究——四川会东淌塘铜矿床为例

Sichuan Huidong Tangtang copper deposit of Kangdian axis middle eastern margin of copper mineralization in Yangtze platform as an example

康滇地轴位于扬子准地台西缘,与西部甘孜印支褶皱带紧邻,康滇地轴中段东缘,是我国极有远景的一个铜铅锌矿矿带,淌塘铜矿位于扬子地台康滇地轴中部东缘。区域发育东西向的金沙江褶断带,矿体主要赋存于会理群淌塘组第二段第二岩段上亚层(Pt2t2-2)中,矿体呈层状或似层状展布,含矿岩性主要为炭质凝灰质千枚岩、凝灰质千枚岩中,矿体明显受地层层位控制。通过对该矿床地质特征、矿体地质特征、围岩蚀变、矿石组构等方面综合分析,认为该矿床为典型的沉积-变质改造型铜矿,其深部及外围具有较大成矿前景。

The Kangdian axis is located in the western margin of the Yangtze paraplatform, and adjacent to the western Ganzi Indosinian fold belt, the middle eastern margin of Kangdian axis, is very promising in China of a copper lead zinc ore belt, Tangtang copper mine is located in the Yangtze middle eastern margin of Kangdian axis. The regional development of things to the Jinsha River fold and thrust belt, ore bodies mainly occur in the Huili Group Tang Tang Group second section second rock section on sub layer（Pt2t2-2）, the orebody is layered or layered, the main ore bearing rock is carbonaceous tuffaceous phyllite, tuffaceous phyllite, the ore bodies were controlled by strata. Based on the geological characteristics of the deposit, geological characteristics, ore rock alteration, ore texture and other aspects of comprehensive analysis, that the deposit is a typical sedimentary metamorphic modification of copper ore, the deep and periphery has great metallogenic prospects.