论文部分内容阅读
以白乃庙金矿床为例,从矿床学、构造学、找矿矿物学和勘查地球化学4个方面研究了石英脉型金矿床的成矿信息。发现,当4种成矿信息均较有利(第2成矿阶段;主控矿构造与其它方向构造的交汇部位;同一样品、同一晶形黄铁矿存在2组截然不同的热电动势,一组为较大正值;具有Hg,F或As,Sb等前缘元素的强或较强异常,并叠加Au,Ag等成矿元素的弱异常)时,预示深部有盲矿体存在。按此思路进行的预测已得到若干实例的证实。
Taking the Bai Nimiao gold deposit as an example, the ore-forming information of quartz vein-type gold deposits has been studied from mineralogy, tectonics, prospecting mineralogy and exploration geochemistry. It is found that there are two kinds of distinct thermoelectromotive forces in the same sample and the same crystal pyrite when the four kinds of metallogenic information are more favorable (the second metallogenic stage; the intersection of the host ore structure and other directional structures; Large positive values, strong or strong anomalies of Hg, F, As, Sb and other frontal elements, and the superimposition of weak anomalies of metallogenic elements such as Au and Ag) indicate that there are blind ore bodies in the deep. The forecast by this line of thought has been confirmed by several examples.