摘要
贵州省丹寨县老东寨—乌佐铅锌矿床是湘西—黔东铅锌成矿带南段新发现的一中型规模铅锌矿床。通过系统梳理矿床地质特征,发现NNE向和NW向断层、板岩与白云质灰岩的岩性组合是老东寨-乌佐铅锌矿床的重要控矿因素;硅化、黄铁矿化、重晶石化与方解石化的热液蚀变组合,以及铅、锌、镉化探异常是区内直接找矿标志。通过综合对比分析,初步认为老东寨—乌佐铅锌矿床属于MVT型铅锌矿床。老东寨Ⅲ号矿体为国内首次在陡山沱组中发现的单矿体达中型规模的MVT型铅锌矿体,拓宽了国内MVT型铅锌矿找矿勘查范围。
The Laodongzhai-Wuzuo Pb-Zn deposit in Danzhai,Guizhou Province is a newly discovered medium-sized Pb-Zn deposit in the southern Xiangxi-Qiandong Pb-Zn metallogenic belt.Based on a systematical Summary of the geological characteristics,it is concluded that the NNE-and NW-trending faults,as well as the lithologic combination of slate and dolomitic limestone are important ore-controlling factors of the Laodongzhai-Wuzuo Pb-Zn deposit.Hydrothermal alteration of silicification,pyritization,baratization and calcitization,and geochemical anomalies of Pb,Zn and Cd are direct prospecting criteria in the area.Through comprehensive comparison,it is believed that Laodongzhai-Wuzuo Pb-Zn deposit belongs to MVT type Pb-Zn deposit.The Laodongzhai-Ⅲ ore body is a medium-sized type MVT type Pb-Zn deposit that first discovered in Doushantuo Formation,which broadens the direction and scope of prospecting for MVT type Pb-Zn deposit in China.
作者
刘文军
余杰
田亚江
吴波
曾国平
LIU Wenjun;YU Jie;TIAN Yajiang;WU Bo;ZENG Guoping(Guizhou Institute of Geophysical and Geochemical Prospecting,Guiyang 550018,Guizhou,China;No.117 Geological Party,Guizhou Bureau of Geology and Mineral Exploration&Development,Guiyang 550018,Guizhou,China;Wuhan Center,China Geological Survey,Wuhan,430205,Hubei,China)
出处
《矿产勘查》
2023年第11期2075-2084,共10页
Mineral Exploration
基金
贵州省省级地质勘查专项资金项目“贵州省普安县莲花山地区萤石矿调查评价”(202310)
贵州省兴达矿业有限责任公司找矿勘查项目“贵州省丹寨县老东寨—乌佐铅锌矿勘探”(202307)联合资助。
关键词
贵州
老东寨—乌佐
铅锌矿床
矿床成因
找矿方向
Guizhou
Laodongzhai-Wuzuo
Pb-Zn deposit
ore genesis
exploration significance
