栗木矿田某些新方法找矿试验研究和找矿效果  

ORE PROSPECTING TESTS AND RESULTS BY SOME NEW METHODS IN THE LIMU ORE FIELD

作　　者：罗先熔[1] 喻亨祥[1] 

机构地区：[1]桂林工学院

出　　处：《矿产与地质》1997年第4期277-282,共6页Mineral Resources and Geology

基　　金：中国有色金属工业总公司地质总局项目

摘　　要：在栗木矿田进行的土壤离子电导率、地电提取、吸附相态汞新方法试验研究表明，钨锡长石石英脉矿床上获得了高、低双峰电导率异常、单峰吸附相态汞异常和多点连续高峰地电提取多金属异常；钽铌花岗岩型矿床上获得锯齿状电导率异常、双峰夹一谷的“凹”形吸附相态汞异常和多点连续高峰地电提取多金属异常。表明在常规化探方法反映不出异常的厚层覆盖区，新方法能测出强度高、衬度大且与矿体位置吻合较好的异常。并对涧口—焦巴井找矿预测区三种新方法综合异常部位进行了工程验证，见到了矿体，说明各新方法找矿效果良好，方法可行。Tests by new methods of electric conductivity of ion in soil,geoelectrical extraction and adsorptive mercury in the Limu ore field indicate that the bimodal anomalies with high and low electric conduction,mercury anomalies as unimodal adsorption state and high peak anomalies of polymetals by geoelectrical extraction occur over the feldspar quartz vein W Sn deposit,that the sawtooth shape anomalies of electric conduction,bimodal mercury anomalies of adsorption state as “U” shape and high peak anomalies of ploymetals by geoelectrical extraction occur over granite type Ta Nb deposit.It is also indicated that no anomaly can be found in the covered area by thick beds by using regular geochemical exploration methods,but better anomalies with high strength,obvious contrast and identical location with the ore bodies can be discovered by using the new methods.The location in the Jiekou Jiaobajing ore prospecting area with comprehensive anomalies from the three kinds of new methods has been tested by drills.And ores have been drilled,which indicate better ore prospecting results by using of the new methods.

关 键 词：锡矿床 找矿试验 找矿预测 土壤离子电导率 

分 类 号：P618.440.8[天文地球—矿床学] P62[天文地球—地质学]