许冲;钟宏;朱维光;唐亮;宋长顺;罗光杰;

• 1:贵州师范学院地理与资源学院
• 2:贵州师范学院贵州省流域地理国情监测重点实验室
• 3:贵州师范学院贵州山地研究院
• 4:中国科学院地球化学研究所矿床地球化学国家重点实验室

摘要(Abstract)：

富盛铅锌矿床位于川滇黔铅锌矿集区东南部，与富乐铅锌矿床（大型）邻近。矿体赋存于下二叠统茅口组（P_1m）白云质灰岩或白云岩中，矿体形态为似层状和透镜状。矿物组合简单，主要为闪锌矿、方铅矿、黄铁矿、方解石和白云石。矿石构造主要为角砾状、块状、浸染状和脉状构造，矿石结构以半自形-自形粒状结构和半自形-他形粒状结构为主。富盛铅锌矿床的硫化物（方铅矿、闪锌矿）矿物的δ⁽³⁴⁾S值变化范围为+9.2‰～+15.9‰；闪锌矿单矿物的(34)S值变化范围为+9.2‰～+15.9‰；闪锌矿单矿物的⁽²⁰⁶⁾Pb/(206)Pb/⁽²⁰⁴⁾Pb、(204)Pb、⁽²⁰⁷⁾Pb/(207)Pb/⁽²⁰⁴⁾Pb和(204)Pb和⁽²⁰⁸⁾Pb/(208)Pb/⁽²⁰⁴⁾Pb组成范围分别为：18.5637～18.6078、15.6887～15.6939和38.563～38.586；闪锌矿单矿物δ(204)Pb组成范围分别为：18.5637～18.6078、15.6887～15.6939和38.563～38.586；闪锌矿单矿物δ⁽⁶⁶⁾Zn和δ(66)Zn和δ⁽¹¹⁴⁾Cd值变化范围分别为：+0.09‰～+0.33‰和+0.07‰～+0.53‰。结合前人研究成果，本文得出以下结论：1）富盛铅锌矿床的硫主要来源于沉积地层中的蒸发岩或海水硫酸盐岩的热化学还原作用；2）富盛铅锌矿床的铅和锌主要来源于元古界基底地层，但不排除有少部分锌来源于震旦系-二叠系地层沉积岩；3）富盛铅锌矿床应属于MVT铅锌矿床，其矿床成因及成矿模式均可对比MVT铅锌矿床来解释。

关键词(KeyWords)： 富盛铅锌矿床;S-Pb-Zn-Cd同位素;成矿物质来源;川滇黔铅锌矿集区

Abstract:

Keywords:

基金项目(Foundation): 贵州省基础研究计划项目（编号：黔科合基础-ZK[2022]一般336）;; 贵州师范学院博士项目（编号：校2021009）

作者(Authors): 许冲;钟宏;朱维光;唐亮;宋长顺;罗光杰;

DOI: 10.16461/j.cnki.1000-4734.2022.42.095

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