广西五圩矿田多金属矿成矿模式及找矿预测

Metallogenic mode and prospective exploration for polymetallic deposits in the Wuxu Mining Field,Guangxi

广西五圩矿田具有优越的成矿地质背景和成矿地质条件,是寻找铅、锌、锑等多金属矿的理想区域。为深入查明区内多金属矿产资源分布及其成矿模式,本文以广西五圩矿田为研究对象。基于研究区矿床地质特征,对研究区重力、磁测、可控源音频大地电磁测深以及地球化学测量等资料进行精细反演与分析,研究含矿地质体与物探异常的对应关系,获取矿区深部和外围物探异常信息,并进一步研究了其深部成矿模式,初步确定矿床成因类型为中低温热液充填脉型。在此基础上,系统地总结了研究区矿床的找矿标志,构建了矿田多金属矿多数据源综合信息找矿模型,圈定了7处矿化潜力较大的找矿靶区。研究结果以期为五圩矿田多金属矿床及外围同类型矿床找矿勘查和评价工作提供重要参考。

Wuxu Mining Field in Guangxi has superior metallogenic geological background and conditions,and is an ideal area for searching for lead,zinc,antimony,and other polymetallic ores.To determine the distribution of polymetallic mineral resources in the area and its metallogenic mode,this paper takes Wuxu Mining Field in Guangxi as the research object.Based on the geological characteristics of the ore deposits in the study area,it carries out fine inversion and analysis of the data of gravity,magnetic survey,controlled-source audio geodetic electromagnetic bathymetry,and geochemical surveys in the study area,study the corresponding relationship between the ore-bearing geological bodies and the physical exploration anomalies,obtain the information of physical exploration anomalies in the deep part of the mining area and the periphery,and further study the deep mineralization mode,and preliminarily determine that the mining deposits are of the type of mediumlow-temperature hydrothermal-filled veins.On this basis,this paper has systematically summarized the mining exploration signs of the deposits in the study area,constructed a mining exploration model with comprehensive information on geological-physical-chemical exploration and measurement of polymetallic mines in the mining field,and identified seven mining exploration target areas with high mineralization potential.The study results are expected to provide important references for the prospecting,exploring,and evaluating polymetallic deposits in the Wuxu Mining Field and peripheral deposits of the same type.