首页|广西西大明山矿集区弄屯铅锌矿成矿特征及矿床成因探讨

广西西大明山矿集区弄屯铅锌矿成矿特征及矿床成因探讨

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这是一篇地球科学领域的论文.西大明山多金属矿集区是广西矿产资源勘查重点关注地区,在大规模找矿工作的推动下,新发现了弄屯大型铅锌矿床,目前对该矿床的成矿特征尤其矿床成因方面的认识仍停留在表象阶段.为了查明弄屯铅锌矿床的成矿机制,本文在详细的野外地质调查和前人工作基础上,系统总结了弄屯铅锌矿床的区域成矿地质背景、矿区和矿床地质特征,分析矿床成因.研究表明:弄屯铅锌矿床属于岩浆热液型矿床,其成矿流体起源于岩浆流体,后期混入大气降水,流体在长距离运移途中萃取了地层中的Pb、Zn等矿质元素,并与来自岩浆流体的S结合形成[HS]-配位体络合物,在断裂带中汇聚并向浅部运移,进而形成脉状铅锌矿体.鉴于此,本文建立了弄屯铅锌矿床的成矿模式,为今后的找矿勘查工作提供必要的思路和依据.
Discussion on Metallogenic Characteristics and Genesis of Nongtun Lead-Zinc Deposit in Xidamingshan Polymetallic Ore Concentration Area,Guangxi
This is an article in the field of earth sciences.Xidamingshan polymetallic ore concentration area is critical mineral prospecting district in Guangxi.With the promotion of the large-scale mineral breakthrough work,the Xidamingshan mineral exploration,the Nongtun large-scale Pb-Zn deposit has been newly discovered.However,the understanding of the metallogenic characteristics of the deposit,especially the genesis of the deposit,is still at the superficial stage.Based on detailed field geological investigations and previous work,this paper systematically summarizes the regional metallogenic geological background,mining area and geological characteristics,and analyzes the genesis of the Nongtun lead-zinc deposit to find out the metallogenic mechanism.The study shows the Nongtun Pb-Zn deposit is related-magmatic hydrothermal deposit,the ore-forming fluids originated from magmatic,and later mixed with meteoric water.The fluids extracted Pb and Zn ore-forming elements from the strata during long-distance transport,and combined with S of magmatic fluids to synthesize[HS]-ligand that converged in the fracture zone and transported to the shallow part,thus forming Pb-Zn ore vein.The above research results have established the metallogenic model of the Nongtun Pb-Zn deposit,which provides a good guidance for prospecting prediction and exploration.

Earth SciencesGeological characteristicsDeposit genesisMetallogenic modelNongtun lead-zinc depositXidamingshan area

冯洋洋、付伟、李根、万宏宇

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北部湾大学 资源与环境学院,广西 钦州 535011

桂林理工大学 地球科学学院,广西 桂林 541006

北部湾大学 石油与化工学院,广西 钦州 535011

重庆南江工程勘察设计集团有限公司,重庆 401121

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地球科学 地质特征 矿床成因 成矿模式 弄屯铅锌矿床 西大明山地区

广西高校中青年教师科研基础能力提升项目广西高校中青年教师科研基础能力提升项目广西找矿突破战略行动地质矿产勘查项目北部湾大学高层次人才科研启动项目

2021KY04292021KY0430桂国土资函[2017]3412020KYQD10

2024

10.3969/j.issn.1000-6532.2024.01.006

矿产综合利用
中国地质科学院矿产综合利用研究所

矿产综合利用

CSTPCD
影响因子：0.643
ISSN：1000-6532
年,卷(期)：2024.45(1)
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