青海罗汉堂地区水系沉积物地球化学特征及成矿预测

Geochemical Characteristics of Stream Sediments and Metallogenic Prediction in Luohantang area,Qinghai

通过对罗汉堂地区1∶50 000水系沉积物测量元素含量分布、富集离散及组合特征的分析,讨论了各元素之间的组合关系以及与地质背景的关系,对该区主要成矿元素及成矿规律有了进一步认识;结合地球化学异常及地质背景,初步划分了3个成矿远景区,指出在华石山—南峡地区寻找破碎蚀变岩型金矿床、罗汉堂西南地区寻找矽卡岩型铜锡矿床的潜力较大,峡东—磨石山地区具一定的寻找充填交代脉状铅矿床的潜力,为该区成矿预测及下一步地质找矿工作部署提供依据。

Based on the analysis of the content distribution,the enrichment,dispersion and comprehensive characteristics of the measured elements of the 1: 50000 stream sediments in Luohantang,this paperdiscussed the relationship between each element and the relationship between the measured elements and the geological background,and then gainedfurther understanding on the main ore-forming elements and ore-forming regularity in this area.Combining with the geochemical anomaly and the geological background,three metallogenic prospect areas have beendivided: Huashishan-Nanxia area withgood prospecting potential for the altered rock gold deposit in thefracture zone,the southwest area of Luohantang with good potential prospecting for copper-tin deposit in skarnsand the XiadongMoshishan area with goodpotentialprospectingfor lead ore deposit.These conclusions will provide theoreticalbasis for Metallogenic prediction and geochemical prospecting in the area.