新疆西准噶尔地区加尔塔斯斑岩型铜矿地质特征与深部预测  

Geological Features and Deep Prognostication of Jaertasi Porphyry Copper Deposit in Western Jungar,Xinjiang

作　　者：刘建平[1,2] 王核[1] 龚贵伦[1,2] 李文铅[1] 任广利[1,2] 赵玲[1,2] 

机构地区：[1]中国科学院广州地球化学研究所成矿动力学重点实验室,广州510640 [2]中国科学院研究生院,北京100049

出　　处：《地质与勘探》2009年第1期7-12,共6页Geology and Exploration

基　　金：中国科学院创新重要方向性项目(编号:KZCX2-YW-107-03);国家十一五科技支撑项目(编号:2006BAB07B01-04)资助

摘　　要：包古图大型斑岩型铜钼矿的发现显示了新疆西准噶尔地区斑岩型铜矿找矿的巨大潜力。加尔塔斯铜矿与包古图铜矿同处于达尔布特断裂南部，地层为下石炭系太勒古拉组一套火山碎屑岩；侵入岩以岩株、岩脉出露为特征，岩性以花岗闪长斑岩为主；蚀变类型主要有钾化、硅化-绢云母化、褐铁矿化、绿泥石化构成环带蚀变，目前共发现5处矿化点。大功率激电工作显示存在低阻、高极化异常带，异常与地表岩株、岩脉矿化部位吻合很好。激电测深表明在地下140—200m存在高极化、中低阻层，推断为含铜花岗闪长斑岩体。综合地质物探特征，初步认为加尔塔斯铜矿为斑岩型铜矿，深部找矿前景良好。The discovery of Baogutu porphyry Cu - Mo deposit implys the great potential for exploration of porphyry Cu deposit in Western Jungar. The Jiaertasi Cu deposit is located in south of Daerbute faults, as well as Baogutu Cu deposit. The stratum contain volcanic - clastic rocks of lower Carboniferous Tailegula Formation. The intrusive rocks are granodiorite - porphyry outcropping as stocks, dikes. The alteration and 5 mineralized points have been found. The alteration with a girdle characteristics, include potash alteration, silicatization - sericitization, limonitization, chloritization. A low resistance but high polarization anomaly belt is detected by Large - power Induced Polarization Method and the distribution of anomaly is consistent with the mineralizational stocks and dikes on the ground. The medium- low resistivity and high induced polarization anomaly beh 140 -200 meters underground detected by resistivity sounding method is inferred as copper - bearing granodiorite - porphyry bodies. The Jiaertasi Cu deposit is regarded as a porphyry Cu deposit which also have determined to a good prospective exploration in deep by the geological and geophysical characteristics of this deposit.

关 键 词：西准噶尔地区 加尔塔斯 斑岩铜矿 大功率激电法 深部预测 

分 类 号：P618.41[天文地球—矿床学]