东疆库姆塔格—沙泉子地区岩屑地球化学异常优选排队方法  

OPTIMIZATION AND QUEUING OF ROCK FRAGMENT GEOCHEMICAL ANOMALIES IN THE KUMUTAGE-SHAQUANZI AREA OF EASTERN XINJIANG

作　　者：方维萱[1] 徐杰 刘正桃[1] 李丰收[1] 

机构地区：[1]有色金属矿产地质调查中心北京地质调查所 [2]西北有色金属地质勘查局物化探总队,西安710068

出　　处：《地质与勘探》2003年第5期57-62,共6页Geology and Exploration

基　　金：国家重大基础研究规划项目(编号:2001CB409805)资助。

摘　　要：化探异常中选优评价成为目前地质勘查中的关键技术难题之一,以东疆觉罗塔格成矿带库姆塔格—沙泉子测区岩屑地球化学综合异常优选排队为例,讨论了化探异常优选排队新方法。在区域成矿地质背景和地球化学背景研究的基础上,采用地质地球化学预测系统新技术思路和方法,对本区130个化探异常进行了优选排队,筛选出36个有望异常和7个成矿远景区。对优选出的有望异常进行检查评价和工程验证均发现地表含金铜蚀变矿(化)体,说明所提出的化探异常优选排队新方法是有效可行的。Optimization and queuing of geochemical anomaly is one of the most important and difficult key techniques in exploration geochemistry. A new optimization and queuing theory of geochemical anomalies exemplified by rock fragment geochemical reconnaissance in the Kumutage-Shaquanzi area of eastern Xinjiang, has been discussed in this paper. Basis on the research of regional metallogenic, geological and geochemical background, employing a new technique and method of predicating system of geology and geochemistry, 130 geochemistry anomalies were optimized and queued. 36 prospecting anomalies were sorted out and 7 prospecting areas were delineated in the area. Some of sorted anomalies had been checked and evaluated, leading to several Au-Cu-bearing altered bodies and ore bodies were delineated. It is suggested that the new optimization and queuing theory of geochemical anomalies reported functions well.

关 键 词：库姆塔格-沙泉子地区 化探异常 选优评价 地质勘查 地球化学勘探 

分 类 号：P632[天文地球—地质矿产勘探]