山东焦家金矿深部盲矿体定位预测研究

Prediction of the deep blind orebodies in the Jiaojia gold deposit,Shandong,China

通过对比研究以及高精度的激电探测,认为焦家金矿床深部的高极化率间断带可与新城和望儿山金矿上部矿体与下部盲矿体之间的无矿带对应;垂向上Ag-Sb-Hg-Pb-Zn-Au-As-Cu-Bi化探异常分带明显,向深部异常规模在扩大,As和Bi出现高值异常,Au,Ag和Sb等元素出现较高异常,显示头晕、尾晕异常叠加。综合地质物化探信息,焦家金矿乃至整个焦家金矿田在主矿体以下约100 m处存在第二成矿富集带。

Regional correlations and the high-resolution induced electrical survey indicate that the gap zones of the high polarization ratios at the deep sites of the Jiaojia deposit correspond to the upper orebodies and the Xincehng and Wang＇ershan gold deposits. The geochemical exploration anomalies of Ag-Sb-Hg-Pb-Zn-Au-As- Cu-Bi seem to be intensified along the dips of the orebodies with high anomalies of As and Bi and relatively high anomalies of Au, Ag and Sb at depth, indicating the existence of another gold enrichment zone approximately 100 m below the main orebody of the Jiaojia deposit.