中国地质Issue(2)：631-640,10.
张家口梁家沟-火石沟铅锌银多金属矿区找矿潜力分析
An analysis of the prospecting potential of Pb-Zn-Ag polymetallic deposits in the Liangjiagou-Huoshigou ore district of Zhangjiakou area
摘要
Abstract
Carbonate rocks of Meso-Proterozoic and Neo-Proterozoic period are widely distributed along Yanshan fold belt in southern Zhangjiakou and are composed mainly of dolomite. Some polymetallic mineral deposits (ore spots) , such as LaingJiagou, Yingdonggou and Changzhuangzi, are distributed in strata. With the Liangjiagou deposit as a study object, the authors used statistical method and local singularity means to analyze the data of stream sediments (1∶200000) so as to delineate geochemical anomalies. The results show that the areas of geochemical anomalies include three major faults, where there is great potential in search for polymetallic orebodies according to the epigenetic genesis of the ore deposits. The authors adopted densed sampling in important potential areas and delineated three geochemical anomalies. A comprehensive analysis shows that No. 3 anomaly is relatively weak and is consistent with the orebody. No. 1 and No. 2 anomalies not only have high intensity but also possess fairly large areas. The primary halos of bedrock profile survey show that the content of Pb, Zn and Ag in dolomite is significantly higher that in the center of the anomaly area, and this provides further evidence for the prospecting potential of the anomaly area.关键词
铅锌银多金属矿床/化探异常/找矿潜力/梁家沟-火石沟Key words
lead, zinc and silver polymetallic deposit/geochemical anomaly/prospecting potential/Liangjiagou-Huoshigou ore district分类
天文与地球科学引用本文复制引用
李随民,陈凤河,魏明辉,李胜利,郝俊杰,陈树清,李森文,李玉红..张家口梁家沟-火石沟铅锌银多金属矿区找矿潜力分析[J].中国地质,2015,(2):631-640,10.基金项目
河北省国土资源厅项目（2012055548、2013045650）联合资助。 （）
