摘要
电导度是溶液导电能力的相对尺度,电导度的大小能直接反映出成矿溶液的高低.实验证明,成矿溶液相对高浓渡聚集区,往往也是矿床的主矿体或富矿体赋存处.用电导度场替代浓度场,进而建立起电导度与矿体之间的定量对应关系,可以用于表达矿体的贫富,评价矿脉的工业价值,指示找矿远景区等.用金属矿物或半导体矿物的热电性来指导找矿,是近年业兴起的一种新的找矿方法.矿物的热电性大小或热导电类型等在不同的成矿环境、部位中表现不同.因此用矿物的热电性质可以对矿床的侵蚀面水平和矿化地段的远景作出评价.在黑龙江省西吉诺山铅、锌、铜、金普查区采用了成矿溶液电导度和矿物热电性等新技术、新方法,对普查区成矿远景及成矿有利地段进行了分析与预测.结果表明,前人入大量勘查工作的440线至500线一带并不是矿化中心位置,西吉诺山谱查区矿化中心可能位于500线以东至花岗斑岩体之间.
The electric conductivity is a relative ruler to the conductance of ore forming solution.The value of electric conductivity can directly reflect the concentration value of ore forming solution.Study on fluid inclusion suggests that the high concentrated areas of ore forming solution are generally where the main(rich)orebodies occur.By replacing concentrated field with electric conductivity field,and setting up a quantitative relation between electric conductivity parameter and orebodies,the electric conductivity of ore forming solution can be used to reflect the rich or poor levels of orebodies,to distinguish the industrial and non industrial veins,to indicate prospecting areas and so on.Another new method in mineral searching is through the pyroelectricity of metallic and semiconductor minerals.In dissimilar miner alizing conditions and forming sections,the values of mineral pyroelectricity and types of thermal conductivity are different.Mineral pyroelectricity can be used to judge the denuding levels of deposits and to assess the mineralized district.In Xijinuoshan ore field,the new techniques and methods of electric conductivity and mineral pyroelectricity are adopted to locate the best mineralization section.The study results show that the mineralized center is not between the exploration lines 440 and 500 where a lot of workload has been put in.The mineralized center of Xijinuoshan reconnaissance area should be situated from exploration line 500 to the granite porphyty body in the east.
出处
《地质与资源》
CAS
2002年第3期178-183,共6页
Geology and Resources
基金
地科定95-03项目资助.
