化探异常定量评价及重点异常区验证——以山西省阳高县孙仁堡探区为例  

Quantitative evaluation of geochemical anomalies and verification of key anomaly area——a case study of exploration area of Yanggao county,Shanxi province

作　　者：卫倩倩 靳职斌 王鹤宇[1] 李建国[1] 杜凯 WEI Qianqian;JIN Zhibin;WANG Heyu;LI Jianguo;DU Kai(Geophysical and Geochemical Exploration Institute of Shanxi Province,Yuncheng 044004,Chin)

机构地区：[1]山西省地球物理化学勘查院,运城044000

出　　处：《物探化探计算技术》2018年第4期531-538,共8页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：通过对研究区地球化学特征参数、地球化学异常特征值和综合地球化学异常指标的计算,得出了4个地球化学参数及2个地球化学指标:剔除比率、变异系数、浓集比率、矿化系数、单元素地球化学异常指标及综合地球化学异常指标,用于定量评价化探异常,确定主要成矿元素,圈定异常区,并对主要异常区进行了有效识别,进一步缩小了有利勘探靶区。Through the calculation of geochemical characteristic parameters and geochemical anomaly characteristic value and comprehensive geochemical anomaly index in exploration area, four geochemical parameters and two geochemical indica- tors, including rejection ratio, variation coefficient, concentration ratio, mineralization coefficient, single element geochemical anomaly indexes and comprehensive geochemical anomaly index, are used for quantitative evaluation of geochemical anomalies, determined the main ore forming elements, delineate the anomaly area, and discerned the main anomaly area effectively, final- ly narrowed the favorable exploration target areas.

关 键 词：化探异常评价 地球化学特征参数 地球化学异常特征 异常解释 

分 类 号：P632[天文地球—地质矿产勘探]