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

摘要

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.