新疆东昆仑山西段砂金矿特征及成因探讨  

PLACER GOLD AND ITS ORIGIN IN WESTERN SECTION OF EAST KUNLUN MOUNTAINS,XINJIANG

作　　者：王庆明[1] 

机构地区：[1]新疆地质矿产勘查开发局地质矿产研究所,乌鲁木齐830000

出　　处：《新疆地质》1997年第4期321-326,共6页Xinjiang Geology

摘　　要：新疆东昆仑山西段是重要的砂金分布和开采区，也是特富型砂金矿区，集中分布于库木巴彦山、喀帕、阿羌南和云雾岭等地。其物质来源为海酉晚期及以后侵泣的钾长花岗岩复合岩体及其围岩接触蚀变带，其形成与机械搬运沉积及某些生物化学作用有关，分布在大起伏高山或极高山边缘的第四系砂砾石层阶地或河谷中。The western section of the East Kuulun Mountains is an important area for placer gold distribution and mining as a rare and extremely rich placer gold district. The placer gold is concentrated in Kumubayanshan, Kabo, Aqiangnan and Yunwuling. The source materials come from K--feldspar granites which were intruded after the late Hercynian stage,and from its contact alteration zone of country rocks. The placer gold is related with mechanic transportation and some biochemical workings, and mainly occur in the Quaternary sand-conglomerate terraces or river valleys at the margins of high-relief mountains or extremely high-elevation mountains.

关 键 词：东昆仑山西段 砂金 成因 

分 类 号：P618.51[天文地球—矿床学]