江西众埠街铅锌多金属矿床成矿热液运移方向及其找矿方向探讨  

Discussion on migration direction of ore-forming hydrothermal and prospecting direction of The Zhongbujie Pb-Zn polymetallic deposit in Jiangxi Province

作　　者：蔡报元 张彦伟 郑伟 吴星星 余光模 黄志斌 王维洋 马天 CAI Baoyuan;ZHANG Yanwei;ZHENG Wei;WU Xingxing;YU Guangmo;HUANG Zhibing;WANG Weiyang;MA Tian(Basic Geological Survey Institute,Geological Survey and Exploration of Jiangxi Province,Nanchang 330030,Jiangxi,China;Jiangxi Institute of Geological Prospecting and Mineral Resource for Nonferrous Metal,Nanchang 330030,Jiangxi,China;MNR Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,CAGS,Beijing 100037,China;Jiangxi Natural Resources Development Center,Nanchang 330025,Jiangxi,China)

机构地区：[1]江西省地质调查勘查院基础地质调查所,江西南昌330030 [2]江西有色地质矿产勘查开发院,江西南昌330030 [3]中国地质科学院矿产资源研究所,自然资源部成矿作用与资源评价重点实验室,北京100037 [4]江西省自然资源事业发展中心,江西南昌330025

出　　处：《矿产与地质》2022年第5期942-948,共7页Mineral Resources and Geology

基　　金：江西省省级财政出资地质勘查项目“江西省乐平市众埠街锰铅锌矿普查”(项目编号:20180003);江西省地质局科技项目“江西省乐平众埠街成矿热液运移机制及富集过程”(项目编号:KF202006)共同资助。

摘　　要：江西省乐平市众埠街多金属矿为新近探获的一个大型锰(铅锌)矿床。为了探讨江西乐平众埠街铅锌多金属成矿热液的运移过程及“源”头问题,针对以往各期勘查阶段所有钻孔的样品铅含量与锌含量比值(Pb/Zn)进行分析统计,根据Pb/Zn比值特征及规律,初步厘定众埠街矿区铅锌矿成矿热液运移方向为由南西往北东,即由南西深部—北东浅部运移,推测南西端深部存在成矿热液来源中心,可能为隐伏的成矿岩体。根据研究成果,在南西部布置ZK2022钻孔进行验证,钻孔见到数条铜金矿(化)体,印证了矿区南西部成矿流体的温度较高,建议下一步勘查时应该重点观注南西端深部铜金矿体的找矿勘查工作。Zhongbujie polymetallic deposit in Leping City, Jiangxi Province is a large scale manganese(lead-zinc) deposit recently discovered. In order to discuss the migration direction and "source" problem of the lead-zinc polymetallic ore-forming hydrothermal solution in Zhongbujie mining area. In this paper, the Pb/Zn content ratio of all drilling samples in the previous exploration stages is analyzed and counted. According to the characteristics and regularity of Pb/Zn ratio, it is determined that the migration direction of lead-zinc ore-forming hydrothermal solution in Zhongbujie mining area is from the deep place in SW area to the shallow place in NE area. It is speculated that there is a source center of ore-forming hydrothermal solution in the deep at SW area, which might be a concealed metallogenetic pluton. According to the research result, drilling hole ZK2022 is arranged in the SW of the mining area for verification, and several copper-gold ore bodies are found, which confirms that the temperature of ore-forming fluid in the SW area is higher. It is suggested that the deep copper-gold ore body at the south west end should be emphasized in the future prospecting and exploration work.

关 键 词：众埠街铅锌矿 成矿热液 运移方向 Pb/Zn含量比值 江西乐平 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]