邹平火山岩盆地铜矿地质成因地球物理特征探讨

Study on Geophysical Characteristics and Geological Origin of Copper Deposit in Zouping Volcanic Basin

摘要:

邹平铜矿处于齐河-广饶深大断裂带南部的邹平火山岩盆地中，形成于破火山口火山通道充填的石英正长闪长岩岩颈中央上部，包括伟晶岩型铜矿和细脉浸染状斑铜矿床两种类型。前者矿体较小，但品位高；后者品位较低，但规模中等。含矿石英正长闪长岩等密度小、磁性弱，故在火山岩系中呈现高背景重力场上的重力低和杂乱高磁场背景中的低负异常，即“重磁同低”，且高极化。重磁同低异常区和高极化率异常带，是本区寻找铜矿的有利部位。

Abstract:

Zouping copper deposit locates in Zouping volcanic basin in south part of Qihe-Guangrao deep fault belt. It was formed in the central upper part of caldera neck piping filling with diorite. It includes two types of copper deposit: one is crystal form copp