山东沂南明生岩体含矿性特征及找矿方向

Ore Potentiality Characteristics and Prospecting Orientation of Mingsheng Complex in Yinan Area of Shandong Province

摘要:

沂南金铜铁矿床是山东省矽卡岩型金铜铁矿床的典型代表。前人在该地区开展了大量地质勘查和研究工作，但对明生岩体的系统性研究工作相对欠缺。明生成矿杂岩体位于NNE向银山断裂与北西向马牧池—金场断裂交会部位，岩体相带发育，围岩地层发育齐全。以往勘查工作共发现6个矿体，分别赋存于内接触带镁矽卡岩、外接触带钙矽卡岩和断裂破碎带中，并以外带为主。根据含矿性特征，结合物探异常特征，分析得出明生岩体找矿方向。

Abstract:

Yinan AuCuFe deposit is a typical representative of skarn AuCuFe deposits in Shandong province. In this area, a large amount of geological exploration and research work have been carried out, but systematic research on Mingsheng Complex is relatively deficient. The mineralization complex, which has well developed lithofacies and complete surrounding strata, locates on the intersection of NNE Yinshan fault and NW MamuchiJinchang fault. Previous exploration work has found 6 ore bodies occur in magnesian skarn of inner contact, calcareous skarn of outer contact and fracture zone ,with the outer contact as a main ore belt. According to the ore potentiality characteristics, combined with geophysical anomalies, prospecting orientation of the complex can be obtained.