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石英脉型钨多金属矿床的扇状成矿实例及找矿模型

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  • 国家科技期刊平台
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石英脉型钨矿床是中国数量最多的钨矿床类型,但保有储量消耗迅速,迫切需要创新找矿模型,指导找矿突破.文章结合二十余年的找矿实践,通过详细分析扇状成矿矿床实例,构建了石英脉型钨矿床新的找矿模型.该模型强调赋矿裂隙为岩浆动力成因,在花岗岩体顶部呈扇状分布型式,岩浆期后热液恰在裂隙张开时充填其中而形成扇状成矿系统;提出"就岩找矿"、"就矿找矿"、"就矿找岩"的地质、地球化学和地球物理标志,指导矿床尺度的勘查工程部署.截至目前,该模型已在广东禾尚田钨锡矿床、广西珊瑚钨锡矿床、广西社垌钨钼矿床、江西盘古山钨铋矿床等获得了验证,找矿成效显著.
Fan-shaped case and exploration model of quartz vein-type tungsten polymetallic deposits
Quartz vein-type tungsten deposits are the most abundant types of tungsten deposits in China,yet the re-serves are being rapidly depleted.There is an urgent need to innovate the exploration model to guide break-throughs in finding new deposits.The article,which combines over two decades of exploration practice,con-structs a new exploration model for quartz vein-type tungsten deposits through a detailed analysis of fan-shaped mineralization instances.This model emphasizes that the ore-bearing fractures are of magmatic dynamic origin and are distributed in a fan-shaped pattern at the top of the granite.The fan-shaped mineralization system is be-lieved to have formed when post-magmatic hydrothermal fluids filled the fractures as they were opening.The model also proposes geological,geochemical,and geophysical indicators for"exploration around the granite","exploration around known deposits",and"exploration around the deposits for granite",guiding the deployment of exploration survey projects at the deposit scale.To date,this model has been validated in the Heshangtian W-Sn deposit in Guangdong Province,Shanhu W-Sn deposit and Shedong W-Mo deposit in Guangxi Province,as well as the Pangushan W-Bi deposit in Jiangxi Province,and has achieved remarkable results in exploration.

fan-shaped mineralizationmetallogenic regularityprospecting modelgraniteQuartz vein-type tungsten deposit

方贵聪、王登红、黄长帅、杨富强、许以明、冯佐海、李学彪、曾强、严长华

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广西隐伏金属矿产勘查重点实验室,桂林理工大学,广西桂林 541004

有色金属矿产勘查与资源高效利用省部共建协同创新中心,桂林理工大学,广西桂林 541004

中国地质科学院矿产资源研究所,北京 100037

中国有色桂林矿产地质研究院有限公司,广西桂林 541004

广西壮族自治区地球物理勘察院,广西柳州 545005

湖南省矿产资源调查所,湖南长沙 410014

江西大吉山钨业有限公司,江西全南 341801

湖南省水文地质环境地质调查监测所,湖南长沙 410131

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扇状成矿 成矿规律 找矿模型 花岗岩 石英脉型钨矿床

国家重点研发计划广西自然科学基金国家自然科学基金中国地调局中国矿产地质志项目中国有色桂林矿产地质研究院有限公司创新基金

2021YFC29001002022GXNSFFA03502542372099DD20221695KDYCXJJ202201

2024

10.16111/j.0258-7106.2024.03.009

矿床地质
中国地质学会矿床地质专业委员会 中国地质科学院矿床地质研究所

矿床地质

CSTPCD北大核心
影响因子：2.163
ISSN：0258-7106
年,卷(期)：2024.43(3)