湘东北正冲金矿区矿床成因及成矿预测  

Genesis and Metallogenic Prediction of the Zhengchong Gold Deposit,Northeastern Hunan

作　　者：王淑军 伍式崇 WANG Shu-jun;WU Shi-chong(Hunan Institute of hydrogeological and Environmental Geological Survey and monitoring,Changsha,410129)

机构地区：[1]湖南省水文地质环境地质调查监测所,长沙410129

出　　处：《四川地质学报》2023年第2期227-233,共7页Acta Geologica Sichuan

基　　金：湖南省商业性地勘基金湖南省醴陵市正冲金矿区正冲矿段详查项目([2015]69号)。

摘　　要：湘东北正冲金矿区地处湖南省醴陵市北东部,属湘东北金矿矿集区,经过近三十年开采,矿山资源已接近枯竭。开展该金矿区矿床成因及成矿预测的研究,对边深部矿体预测及找矿,具有重要意义。研究表明:该金矿区的控矿构造主要是北西向韧性剪切带之压扭性剪切断裂带;其次是北东向劈理化带(或层间破碎带),依次赋存类似新型的构造蚀变岩型、石英细脉带型两种矿石类型;该两组或三组构造带交汇部位是金矿富集最有利部位,很容易形成品位较高、厚度较大的矿床。该矿区深部找矿取得新突破,预测矿床远景规模可达大型以上。这对本地区或同类矿区边深部找矿预测都具有重要的实践意义。The Zhengchong gold miningarea is located in the northeast of Liling City,Hunan Province.After nearly 30 years of mining,The mine resources are nearly exhausted.It is of great significance to carry out the research on the genesis and metallogenic prediction of the gold deposit for the prediction and prospecting of the deep orebodies.The results show that the ore-controlling structure in this gold orefield is mainly the compression-torsion shear fault zone of NW trending ductile shear zone.Secondly,it is the northeast-trending split zone(or interbedded fracture zone),which hosts two types of ore types,including tectonic altered rock type and quartz veining zone type.The intersection of the two or three tectonic belts is the most favorable location for gold enrichment,and it is easy to form a deposit with high grade and large thickness.The new breakthrough has been made in deep prospecting,and the prospective scale of the gold deposit can reach large scale.It is of great practical significance to the prospecting prediction of sideanddeep in this area or similar orefied.

关 键 词：正冲金矿区 找矿标志 边深部预测 

分 类 号：P618.51[天文地球—矿床学]