| 彭松,金中国,林贵生,朱尤青,王兵.贵州五指山铅锌矿区控矿因素及成矿模式研究——以纳雍枝矿床为例[J].矿产勘查,2016,7(3):463-470 |
| 贵州五指山铅锌矿区控矿因素及成矿模式研究——以纳雍枝矿床为例 |
| Analysis of ore-controlling factors and metallogenic model of Wuzhishan lead-zinc deposit, Guizhou: a case study of Nayougzhi deposit |
| 投稿时间：2015-08-05 |
| DOI： |
| 中文关键词: 铅锌矿 控矿因素 成矿模式 五指山 贵州 |
| 英文关键词: Pb-Zn deposit, ore-control factors, metallogenic model, Wuzhishan, Guizhou |
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| 中文摘要: |
| 普定五指山铅锌矿区位于川—滇—黔铅锌成矿域以东,近年找矿取得重大突破,已探明多个大型矿床,提交铅锌资源储量近250万t,成为贵州重要的铅锌矿产资源地。铅锌矿体产出空间上具有“三层”分布特点,走向上严格受背斜近轴部的F1、F7断层控制,与寒武系下统清虚洞组深灰色中—厚层白云岩关系密切,形态呈层状、似层状、透镜状,与地层产状一致,总体显示产出受构造、地层、岩性等综合因素控制。研究认为,矿床形成经历了早期沉积成岩、有利环境成矿物质初步富集和区域构造作用导致成矿物质再活化形成矿化浓度较高的流体,在构造动力、热动力驱动下,将成矿流体运移到构造的虚脱部位及断裂破碎带内富集成矿,在成因上属较典型的MVT型矿床。 |
| 英文摘要: |
| The Wuzhishan lead-zinc deposit is located in the eastern part of Sichuan-Yunnan-Guizhou lead-zinc mineralization area. Major prospecting breakthroughs were achieved in recent years, and several large-sized lead-zinc deposits were discovered, and proven lead-zinc metals reserves nearly 2.5 million tons. It has become the important lead and zinc resource area in Guizhou. Lead- zinc ore bodies distributed as forms of “Three layers” on the space. The strike was controlled by the F1 and F7 faults near the anticline axis strictly, close to the middle-thick layer of lower Cambrian dark gray dolomite of Qingxudong formation. Ore bodies are layered, stratified and lenticular, consistent with the attitude of stratum. It is controlled by structure, stratum, lithology, and other comprehensive factors. Study results suggest that the formation of deposit experienced early sedimentary diagenesis, metallogenic material preliminary enrichment in favorable environment and regional tectonic activity, which resulted in the metallogenic material reactivation to form higher mineralization concentration fluid. Driven by tectonic dynamics and thermodynamic, ore-forming fluid was moved into the tectonic collapse site and fractured zones to yield the concentration and mineralization. The genesis of deposit belongs to the typical MVT type. |
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