朝不楞多金属矿外围1∶5万地电化学勘查应用  

Geoelectrochemical Exploration at a Scale 1∶ 50000 in the Periphery of the Chaobuleng Polymetallic Deposit

作　　者：谢邦廷 孙彬彬[2,3] 贺灵[2,3] 刘占元[2,3] 叶荣[1] 刘银飞[1,2] 王腾云 

机构地区：[1]中国地质大学地球科学与资源学院,北京100083 [2]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000 [3]国土资源部地球化学勘查技术重点实验室,河北廊坊065000

出　　处：《地质与勘探》2016年第5期885-892,共8页Geology and Exploration

基　　金：地质矿产调查评价项目"东乌旗整装勘查区热磁与地电化学方法技术研究应用"(12120113100400)支持

摘　　要：运用地电化学技术在内蒙古半干旱草原风成砂浅覆盖区朝不楞多金属矿外围开展了1∶50000面积性勘查工作,并与常规土壤测量开展了对比研究。结果表明:(1)从元素异常强度、衬度、规模及与已知矿体空间对应性等方面对比,地电化学测量比常规土壤测量具有显著优越性;(2)地电化学测量在区域上显现出Ag-Pb-Zn-Bi-Cd及Cu-Co-Cr-Fe-La-Mo-Ni两套元素异常组合,与已知见矿钻孔中探测到的矽卡岩型铁矿及热液型铅锌矿均有出现具有较好的对应性;(3)在工区东部及东南部未知区发现多处异常强度、规模较大的多元素组合异常,建议开展进一步的勘查工作,以实现该矿区找矿突破。An 1∶ 50000 scale survey using the geoelectrochemical method（ CHIM） was conducted in the periphery of the Chaobuleng polymetallic deposit which is located in an aeolian shallow overburden region of Inner Mongolia. It is compared with the conventional soil measurement. The results show that in the aspects of intensity,contrast,and extension of element anomalies and the correspondence to the known ore bodies,CHIM survey is significantly more effective than conventional soil survey. Two sets of anomaly combinations of geochemical elements are found. One is Ag- Pb- Zn- Bi- Cd,and the other is Cu- Co- Cr- Fe- La- Mo- Ni. These two sets can respectively well match the ore body＇s characteristics of hydrothermal Pb Zn polymetallic and skarn Fe deposits which were confirmed by a series of drilling holes in part of the exploration area. Some CHIM anomalies with characteristics of high intensity,wide extension and multi- element combinations are revealed in the east and southeast of the exploration area. We recommend that further exploration work should be made to achieve new breakthrough in this deposit.

关 键 词：地电化学 土壤测量 1∶5万勘查 朝不楞多金属矿外围 

分 类 号：P632.1[天文地球—地质矿产勘探]