河南栾川叫河—大清沟地区地球化学异常特征  

Characteristics of geochemical anomalies in the Jiaohe-Daqinggou area,Luanchuan,Henan,China.

作　　者：燕长海[1] 赵荣军[1] 崔来运[1] 

机构地区：[1]河南省地质调查院

出　　处：《地质通报》2005年第10期968-974,共7页Geological Bulletin of China

基　　金：中国地质调查局项目<豫西南地区1:50000水系沉积物测量(K1.2.3.1.1)>;<豫西南地区铅锌银矿调查评价(1212010330703)>成果

摘　　要：根据叫河—大清沟地区1∶50000水系沉积物测量成果,在分析区内元素地球化学特征的基础上,利用R型因子分析和马氏距离对元素分布特征和规律进行了进一步的总结与探讨,系统阐述了测区内地层的地球化学特征、(衬值)异常特征、马氏距离异常特征,指明了寻找铅锌银多金属矿的有利层位和成矿元素主要富集地段,为区内地质找矿工作提供了地球化学依据。According to 1：50000 stream sediment survey in the Jiaohe-Daqinggou area, Luanchuan County, Henan Province, the characteristics of geochemical anomalies and contrast anomalies in the area are analyzed, and on that basis, the characteristics of element distribution are further summarized and discussed by using K-mode factor analysis and Mahalanobis distance analysis. In addition, the geochemical characteristics of strata, contrast anomaly characteristics and Mahalanobis distance anomaly characteristics in the survey area are systematically elucidated and the favorable horizon of lead-zinc-silver polymetallic deposits and main sites of concentration of ore-forming elements are pointed out. These provide a geochemical basis for mineral exploration in the area.

关 键 词：数学地质 衬值异常 R型因子分析 马氏距离 河南栾川叫河-大清沟地区 

分 类 号：P595[天文地球—地球化学]