西藏冲江铜矿区及其外围找矿前景地球化学评价  

GEOCHEMICAL EVALUATION OF ORE POTENTIAL IN THE CHONGJIANG COPPER DEPOSIT AND ITS PERIPHERAL REGION,TIBET

作　　者：孔牧[1] 刘华忠[2] 杨少平[2] 

机构地区：[1]中国地质大学,北京100083 [2]中国地质科学院地球物理地球化学勘查研究所,廊坊065000

出　　处：《地质与勘探》2007年第6期7-11,共5页Geology and Exploration

基　　金：国家地质大调查项目(编号:20020130001)资助

摘　　要：西藏冲江斑岩铜矿的发现是西藏冈底斯东段找矿工作的重大突破之一。在发现找矿线索、确定成矿类型和评价找矿前景的过程中,勘查地球化学起了十分重要的作用。区域化探圈定了异常范围,异常查证追踪查证工作确定了矿化类型和找矿有利地段。通过测区系统的地球化学勘查工作,结合地质资料,认为冲江斑岩铜矿存在较为典型的斑岩铜矿地球化学模式,矿体剥蚀程度较浅,具有寻找大型斑岩铜钼矿床的良好远景。Discover of Chongjiang porphyry Cu deposit in Tibet is one of the significant breakthrough in Tibet geology and exploration works for Cu deposits in the resent years. Exploration geochemistry plays a decisive role in ore prospecting, ascertaining ore genetic types, and evaluating prospecting potential. Regional geochemical anomalies can circle anomaly region. Following anomaly survey can ascertain mineralization types and perspective targets. It is considered Chongjiang deposit shows a typical porphyry Cu deposit geochemical roodel. Eroded levels of ores are very shallow. Chongjiang area is a good prospecting area for supper large Cu - Mo deposit.

关 键 词：西藏 冲江 斑岩铜矿 找矿前景 地球化学评价 

分 类 号：P618.41[天文地球—矿床学]