广东省阳山县大坪铅锌多金属矿区控矿地质条件分析

Analysis of ore controlling geological conditions in Daping lead zinc polymetallic mining area, Yangshan County,Guangdong Province

广东省阳山县大坪铅锌多金属矿区处于南岭成矿带的中南段,已发现的铅锌多金属矿体27条,矿(化)体主要产在断裂中的透辉石透闪石蚀变和硅化蚀变带内,地层、构造、岩浆岩控矿作用明显,泥盆系融县组(D_(3)r)为矿区主要控矿地层,北东向断裂是矿区主要导矿通道,是矿区最主要的控矿因素,岩浆活动不仅为区内铅锌等金属矿产提供了热源,而且提供丰富的物质来源。本文结合矿区地质背景及矿体地质特征,着重从地层、构造、岩浆岩三个方面对矿区的控矿因素进行分析,以期对本区后期找矿研究工作提供参考。

Daping Pb Zn polymetallic mining area in Yangshan County,Guangdong Province is located in the south central section of Nanling metallogenic belt.27 Pb Zn polymetallic ore bodies have been found.The ore bodies (mineralization) mainly occur in the diopside tremolite alteration and silicification alteration belt in the fault.The strata,structures and magmatic rocks play an obvious role in ore control.Rongxian formation (D_(3)R) of Devonian system is the main ore control stratum in the mining area,The NE trending fault is the main ore guiding channel and the most important ore controlling factor in the mining area.Magmatic activity not only provides heat source for lead-zinc and other metal minerals in the area,but also provides rich material sources.Combined with the geological background of the mining area and the geological characteristics of the ore body,this paper focuses on the analysis of the ore controlling factors in the mining area from the three aspects of stratum,structure and magmatic rock,in order to provide reference for the later prospecting research in this area.