森林沼泽覆盖区地电化学方法寻找隐伏铜多金属矿--以黑龙江铜山铜矿为例

Prospecting for concealed copper polymetallic deposit by geo-electrochemical method in forest and marsh covered area—A case study in Tongshan copper deposit,Heilongjiang

为了进一步追索黑龙江铜山铜矿已知的隐伏矿体是否有向东南方向延伸的趋势,在铜矿区开展了以地电化学测量为主的找矿预测研究。结果显示:地电化学测量在已知的矿体上方有明显的地电化学异常,说明地电化学测量在该矿区寻找隐伏铜矿是可行有效的;经过对异常特征的分析研究建立了找矿理想模型。结合本矿区的地质条件,在矿区外围开展了地电提取、土壤离子电导率、土壤吸附相态汞等研究,圈出具有找矿前景的靶区5处。

A new method is carried out in prospecting prediction based on geo-electrochemical measurement in Tongshan copper minefield in order to find out whether there is a trend extending southeastward among the known concealed orebodies in Tongshan copper minefield Heilongjiang. The results show that geo-electrochemical measurement has an obvious geo-electrochemical exception above the known ore bodies,this method proved to be effective in Tongshan copper minefield. Ideal prospecting model is established by analyzing the characteristics of exception. Prediction of concealed ore was conducted by combining geological conditions of the minefield. From the ideal prospecting model,5 prospecting targets are found,useful for peripheral and deep prospecting prediction.