蒙古国扎马尔地区金多金属矿化带土壤地球化学异常特征与找矿预测  

Soil geochemical anamalies characteristics and prospecting prediction of Au polymetallic minerlization belt in Zaamar,Mongolia

作　　者：燕军利 庞新龙 李强 张家琪 刘振 赵长春[1] 马崇军[1] 闵祥吉 赵耘[1] 周宇[1] YAN Junli;PANG Xinlong;LI Qiang;ZHANG Jiaqi;LIU Zhen;ZHAO Changchun;MA Chongjun;MIN Xiangji;ZHAO Yun;ZHOU Yu(Institute of Shandong Zhengyuan Geological Exploration,China Metallurgical Geology Bureau,Jinan 250000,Shandong,China;School of Earth Sciences and Engineering,Shandong University of Science and Technology,Qingdao 266590,Shandong,China;Jiangxi Vocational College of Applied Technology,Ganzhou 341000,Jiangxi,China;Geological Brigade 902,Jiangxi Provincial Bureau of Geology and Mineral Resources,Xinyu 338000,Jiangxi,China)

机构地区：[1]中国冶金地质总局山东正元地质勘查院,山东济南250000 [2]山东科技大学地球科学与工程学院,山东青岛266590 [3]江西应用技术职业学院,江西赣州341000 [4]江西省地矿局九○二地质大队,江西新余338000

出　　处：《矿产勘查》2021年第2期401-408,共8页Mineral Exploration

摘　　要：蒙古国矿产资源丰富,但地质勘查程度低。为了探查扎马尔地区找矿潜力,在区内开展了1∶25000土壤地球化学测量工作。依据测量结果,从数理统计学的角度,应用因子分析、相关分析和聚类分析的方法,研究工作区元素地球化学特征。结果表明工作区土壤成矿潜力较大的元素组合有2组,即Au-Ag-Hg和As-Sb,这些元素含量高,变异系数大,反映低温热液成矿作用。对土壤分析元素应用异常下限进行异常圈定,共圈出6个综合异常区,其中综合异常区HT2、HT4、HT6分布受构造控制明显,为下一步优选找矿远景区提供了依据。Mongolia is rich in mineral resources,but the degree of geological exploration is low.In order to explore the prospecting potential of the Zamar area,a 1∶25000 soil geochemical survey was carried out in the area.According to the soil geochemical surveys in Zaamar,the methods of factor analysis,correlation analysis,and cluster analysis from mathematical statistics were applied to investigate the geochemical characteristics of the elements in the work area.The results show that there are two groups of elements with greater soil mineralization potential in the work area,namely Au-Ag-Hg and As-Sb.These elements have a high content and a large coefficient of variation,reflecting low-temperature hydrothermal mineralization.The anomalies were delineated by applying the lower limit of the anomaly for soil elements analysis,a total of six comprehensive anomalies were delineated.The distribution of comprehensive anomaly area HT2,HT4 and HT6 is obviously controlled by the structure,which is the preferred prospecting area for the next prospecting work.This study provides a basis for the follow-up prospecting work.

关 键 词：金多金属矿化带 土壤地球化学异常 找矿预测 扎马尔 蒙古国 

分 类 号：P595[天文地球—地球化学] P612[天文地球—地质学]