桃园寨一带地质特征及成矿条件分析  

Analysis of Geological Characteristics and Metallogenic Conditions in Taoyuanzhai Area

作　　者：王瑞龙[1] WANG Rui-long(Anhui Provincial Geological and Mineral Exploration Bureau 313 Geological Team,lu’an 237010,China)

机构地区：[1]安徽省地质矿产勘查局313地质队,安徽六安237010

出　　处：《世界有色金属》2023年第23期67-69,共3页World Nonferrous Metals

摘　　要：本文通过对桃园寨一带成矿地质条件分析,该区域主要受桐柏-磨子潭断裂、金寨断裂和郯庐断裂控制,断裂构造发育,致使区内侵入体岩石普遍破碎,火山喷发—岩浆侵入活动频繁,次火山岩极其发育,热液活动强烈。区内化探异常与中深部的低阻高极化异常具有一定的重合性,这些低阻高极化异常主要为黄铁矿化和少量的铜、铅、锌、磁铁矿化引起,地质调查发现区内广泛发育的热液蚀变和破碎带中多处见Cu、Pb、Zn、磁铁矿等矿化线索,证明研究区内有利于形成破碎蚀变岩型铅锌、铜多金属矿床,有着良好的寻找构造活动—脉岩侵入型矿床条件。Through the analysis of the ore-forming geological conditions in the Taoyuanzhai area,this article finds that the area is mainly controlled by the Tongbai Mozitan Fault,Jinzhai Fault,and Tanlu Fault.The developed fault structures have led to the widespread fragmentation of intrusive rocks in the area,frequent volcanic eruptions and magma intrusion activities,extremely developed sub volcanic rocks,and strong hydrothermal activity.There is a certain overlap between the geochemical anomalies in the area and the low resistance and high polarization anomalies in the middle and deep parts.These low resistance and high polarization anomalies are mainly caused by pyrite mineralization and a small amount of copper,lead,zinc,and magnetite mineralization.Geological surveys have found that copper,Pb,Zn,magnetite and other mineralization clues can be found in the widely developed hydrothermal alteration and fracture zones in the area,proving that the study area is conducive to the formation of fractured altered rock type lead zinc,copper polymetallic deposits,Has good conditions for searching for tectonic activity-vein rock intrusion type mineral deposits.

关 键 词：秦祁昆成矿域 大别成矿带 桃园寨 成矿地质条件 

分 类 号：P618.41[天文地球—矿床学]