广西环江县北山铅锌矿地层特征及成矿模式

Stratigraphic characteristics and mineralization model of Beishan lead-zinc mine in Huanjiang County,Guangxi

北山矿田有着多年的开采历史,由钢山、北山、锌源、新发、才秀等矿段组成。1975-1987年,广西第七地质队在本区开展了北山铅锌多金属矿床勘探工作,期间发现北山、洞忙生物礁,提出礁体与铅锌多金属矿化关系密切,并在提交的《广西环江县北山铅锌硫铁矿床详细勘探地质报告》中提出北山矿田分成三个矿带,即Ⅰ、Ⅱ、Ⅲ号矿带。本次笔者通过对北山铅锌多金属矿床地质特征及对近年找矿地质成果的分析,结合本次对锌源矿段开展的深部详查项目提出矿区找矿新认识。

Beishan mining field has a history of many years of mining,composed of Gangshan,Beishan,ZnSource,Xifa,Caixiu and other mining sections.From 1975 to 1987,the Seventh Geological Team of Guangxi conducted a survey on the Beishan lead-zinc polymetallic deposit,during which they discovered the Beishan-Dongmang bioherm and proposed that there is a close relationship between the herm and the lead-zinc polymetallic mineralization.They also proposed in the "Detailed Geological Report on the Beishan Lead-Zinc-Pyrite Deposit in Huanjiang County,Guangxi" that the Beishan mining field should be divided into three mining zones,namely No.1,No.2 and No.3 mining zones.In this article,the author proposes new understanding for prospecting in the mining area through analysis of the geological characteristics of the Beishan lead-zinc polymetallic deposit and the results of recent prospecting geology,combined with the deep detailed survey project carried out in the ZnSource mining section.