衡阳盆地北缘盐田桥矿区铜多金属矿地质-地球物理找矿模型研究

Geological and geophysical prospecting model of Yantianqiao copper polymetallic deposit at the northern edge of Hengyang Basin

盐田桥铜多金属矿床位于衡阳盆地北缘茶恩寺铅锌多金属成矿区,区内成矿地质条件优越。本文总结了矿区内岩(矿)石物性特征,研究了岩(矿)石物性组合模型,激电中梯异常、激电测深异常及高频大地电磁异常(EH4)特征,并结合矿床地质特征,初步建立了盐田桥矿床地质-地球物理勘探找矿模型,以期指导矿床深部及其外围同类型矿床地质找矿工作。

Yantianqiao copper polymetallic deposit is located in Chaensi Pb-Zn polymetallic metallogenic area on the northern edge of Hengyang Basin,and the area has favorable ore-forming conditions.This paper sum-marized the physical properties of the rocks （ores）from the mining area,and studied physical property port-folio model of the rocks （ores）.Based on IP intermediate gradient anomaly characteristics,IP sounding a-nomaly characteristics and high-frequency magnetotelluric anomaly （EH4 ）characteristics,and combined with metallogenic and geological conditions,this paper established a preliminary model for geological and ge-ophysical prospecting in Yantianqiao deposit.Hopefully the model may provide guidance for prospecting works in the deep part of the deposit and the same type deposits on the peripheral area.