河北峪耳崖金矿苋草沟区次生晕异常及找矿预测  

Secondary Halo Anomalies of the Yu'erya Gold Deposit in the Xiancaogou Area,Hebei Province and Its Prospecting Prognosis

作　　者：孙凯[1] 周肃[1] 缪振平 胡兵 黄凯[1] 张琳琳[1] 邱瑞照[3] 胡少华 

机构地区：[1]中国地质大学,北京100083 [2]河北峪耳崖黄金矿业有限责任公司,河北承德067600 [3]中国地质调查局发展研究中心,北京100037

出　　处：《地质与勘探》2011年第4期566-576,共11页Geology and Exploration

基　　金：中国地质调查局专题(编号:1212010711814和1212010813046)资助

摘　　要：通过对苋草沟测区1:10000土壤地球化学测量,采用多重分形异常下限计算方法,圈定了该区Au、Ag、Fe、Cu、Pb、Zn、As、Sb、Bi、Hg10元素异常范围。根据各元素所反映的异常特征并结合元素组合特征及现有矿化点的分布特征,综合评价圈定了两处乙1类异常和一处丙1类异常,为进一步找矿提供了指导。运用因子分析方法选取土壤地球化学测量取得的9个元素进行分析,划分出了中温-高温-中温-低温四个成矿阶段,在一定程度上解释了成矿成晕过程。Through 1：10,000 soil geochemical survey in the Xiancaogou area, Hebci Province, using the multlfractal method for the geochemiea/ threshold ,we delineated the anomaly zones for 10 elements （Au, Ag, Fe, C u, Pb, Zn, As, Sb, Bi, and Hg）. Based on these anomalies and characteristics of element combination with the distribution of the existing mineralization sites, two places of class B1 anonmlies and one place of class Cz anomalies were de- fined, providing a guidance for further exploration. In terms of the factor analysis method ,we analyzed 9 elements from the soil geochemical survey. It was suggested that the mineralization can be divided into four stages, which are of medimn, high, medium, and low temperature, respectively. To a certain extent,this model explains the process of forming a deposit or a halo.

关 键 词：土壤地球化学测量 综合异常评价 因子分析 峪耳崖金矿 河北 

分 类 号：P632.1[天文地球—地质矿产勘探]