西藏玉龙Cu成矿带及其外围地区异常结构模式找矿预测研究  

Research on prospecting prediction for the Yulong Cu metallogenic belt and its peripheral areas based on the model for spatial structures of regional geochemical multi-element anomalies,Tibet

作　　者：史长义[1] SHI Changyi(Institute of Geophysical and Geochemical Exploration,Langfang,Hebei 065000,China)

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

出　　处：《地质学报》2021年第11期3163-3177,共15页Acta Geologica Sinica

基　　金：中国地质调查项目“勘查地球化学评价技术研发与应用”计划项目;“深部矿产资源地球物理地球化学综合探测与应用示范”计划项目;“新技术新方法推广应用工程”项目联合资助的成果。

摘　　要：铜矿作为重要的战略性矿产资源之一,备受国家的重视。西藏玉龙斑岩铜(钼)成矿带是中国最大的新生代斑岩铜矿带。纵观国内外重大找矿突破,找矿模式的建立和应用起到了重要的作用。区域地质地球化学异常结构模式找矿预测法已广泛应用于找矿预测评价中。中国的1:20万和1:25万区域地球化学调查在矿产勘查工作中发挥了巨大作用,取得了海量的地球化学数据。基于大数据思维,采用新的思路和技术,再挖掘、再开发这些区域地球化学调查数据,开展区域找矿预测评价,应该是实现新的找矿突破的一种重要有效途径。本文利用区域地球化学调查数据,以异常结构模式理论和方法为基础,以玉龙成矿带和已知矿田的区域地球化学异常结构模式为预测评价标准,对玉龙Cu成矿带及其外围地区进行找矿预测研究,划分出有找寻Cu(Mo)及多金属矿前景的7个预测成矿带和19个找矿预测区,显示出玉龙Cu成矿带及其外围地区还具有很大的找矿前景。Copper mines,as one of the important strategic mineral resources,are highly valued by the country.The Yulong porphyry copper(molybdenum)metallogenic belt in Tibet is the largest Cenozoic porphyry copper belt in China.The establishment and application of prospecting model has played an important role in major prospecting breakthroughs at home and abroad.The prospecting and prediction method of the model for spatial structures of regional geochemical multi-element anomalies(RAGSS model)has been widely used in the prospecting and prediction evaluation.The 1∶200000 and 1∶250000 regional geochemical surveys in China have played a great role in mineral exploration,and obtained a large amount of geochemical data.The analyses of big data is an important and effective way to realize new prospecting breakthrough by using new ideas and technologies to re-mine and redevelop these regional geochemical survey data and carry out regional prospecting prediction and evaluation.In this paper,based on the theory and method of RAGSS model,and the RAGSS models of the Yulong metallogenic belt and known ore fields,the ore-prospecting prediction research of this belt and its peripheral areas has been carried out.Seven metallogenic belts and 19 metallogenic prediction areas with Cu(Mo)and polymetallic ore prospects are identified.It is concluded that the Yulong Cu metallogenic belt and its peripheral areas have great ore prospecting potential.

关 键 词：Cu矿 大数据 区域地球化学调查 异常结构模式 找矿预测评价 玉龙 

分 类 号：P618.41[天文地球—矿床学]