电吸附找矿法在捕获常规化探方法难以发现的异常时的有效性  

Efficiency of electric absorption prospecting method in capturing anomalies hard to be found by routine geochemical methods

作　　者：杨芳芳[1] 卢宗柳[1] 周奇明[1] 陆一敢[1] 

机构地区：[1]桂林矿产地质研究院,广西桂林541004

出　　处：《矿产与地质》2006年第4期479-483,共5页Mineral Resources and Geology

基　　金：广西自然科学基金(桂科自0640181);广西青年科学基金(桂科青0135018)共同资助

摘　　要：电吸附找矿法是一种针对寻找隐伏矿而研制的找矿新方法,它属金属活动态提取法的一种,其找矿原理是:深埋藏隐伏矿在地电化学作用下发生溶解,溶解出来的矿物质在各种迁移动力的驱动下,从地下深部向上运移到地表,进入土壤形成后生异常。后生异常组分多属活动态,但活动态组分不仅存在于后生异常中,也存在于同生异常——原生晕异常和次生晕异常中,因此,应用电吸附找矿法寻找露头矿和浅埋藏矿时,其效果与常规化探方法是一样的;但电吸附找矿法的主要作用是可应用于寻找深埋藏隐伏矿,因由隐伏矿引起的后生异常活动态组分含量很低,常规化探方法很难发现它,而电吸附找矿法却能捕获它。Electric absorption prospecting method is one of the newly developed prospecting method for concealed deposit searching, applying extraction of the metals in active phase, the principle of which is that the deeply berried deposit is subject to dissolution by geoelectric chemical processes and the dissolved minerals are under continuous driving force to be transferred from the deep to surface forming epigenetic anomaly in soil. The epigenetic anomaly components are mostly active but the active components are not only exists in epigenetic anomaly but also occur in syngenetic anomalies-primary or secondary anomaly. Therefore the efficiency of electric absorption method in searching for outcrop and shallowly berried deposit is as same as that of routine geochemical methods; the main function of electric absorption method, however is applying to searching for deeply berried deposit. Since the content of active components in epigenetic anomaly caused by concealed deposit is so low, that it is hard to be found by routine geochemical methods while electric absorption prospecting can capture them.

关 键 词：电吸附找矿法 有效性 后生异常 活动态 

分 类 号：P632.1[天文地球—地质矿产勘探]