青海省龙木地区多金属矿地球化学特征及评价  

Geochemical Characteristics and Evaluation of Polymetallic Deposits in the Longmu Area,Qinghai,China

作　　者：常鑫[1] 王权锋[1] 李程[1] 张孝攀 彭涛[1] 

机构地区：[1]成都理工大学,数学地质四川省重点实验室,成都610059

出　　处：《矿物岩石地球化学通报》2015年第4期787-794,共8页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：中国地质调查局项目(1212011120212);青海省地质勘察基金项目(QGTZXG2010-01);数学地质四川省重点实验室开放基金资助项目(SCSXDZ2011015)

摘　　要：为对龙木地区多金属矿进行评价,收集了矿区大量区域测量中获得的地球化学水系沉积物的元素含量数据,并运用数学地质方法对其进行了分析处理,从而确定了19种元素的单元素异常下限值。对这19种元素进行的R型聚类分析得到了元素的组合异常特征,据此圈定出13处综合异常。上述结果表明,研究区化探异常具有面积大、峰值高、浓度分带梯度大、浓集中心明显、强元素组合复杂和分带规律性,其找矿意义较大。其中有5处为主要的综合异常,具有良好的成矿条件,值得进一步开展研究评价。In order to investigate the geochemical characteristics of polymetallic deposit in the Longmu area,this paper collected large amount of geochemical data of sediments in background regions and analyzed them with the mathematical geology method. The anomaly value for each of 19 elements were determined,the combination anomaly feature elements were obtained through R cluster analyses for the 19 elements,and 13 comprehensive anomaly areas were contoured. The results showed that the geochemical anomaly areas in the study area could be characterized as large areas,high peak,obvious concentration centers,obvious concentration centers,strong elements complex and zoning regularity,therefor,having significant prospecting. Among these comprehensive anomaly areas,5 areas are the major anomalies comprehensive areas,which have good ore formation conditions and worth further work.

关 键 词：多金属矿 地球化学特征 异常圈定与解释 青海省 

分 类 号：P618.2[天文地球—矿床学]