摘要
通过阐明会理天宝山铅锌矿矿床地质特征分析,指出地层、岩相组合型式、构造组合是铅锌成矿最主要控矿条件。矿体定位于灯影组中上部的不纯富镁碳酸盐岩与较纯富镁碳酸盐岩过渡部位有利岩性中,而南北向主干深大断裂及其派生的旁侧东西向断裂与盖层的次一级断层、褶皱构造复合是成矿最有利的构造组合型式,多组构造交汇处的破碎带为成矿流体就位,聚集提供空间。认为矿区及外围的新山、何家屋基、马脖子梁地区找矿前景较好。
The study indicates that main ore control conditions include stratigraphic horizon, sedimentary facies association and structural association patterns. The Pb-Zn orebodies are confined to intermediate zone between impure magnesian carbonate and pure magnesian carbonate of the Dengying Formation. The intersection of longitudinal major deep fractures and their induced horizontal fractures with secondary fractures and folds in the cover is the optimum structural association pattern. Xinshan, Hejiawuji and Maboziliang areas have good prospecting perspective.
出处
《四川地质学报》
2009年第4期426-430,434,共6页
Acta Geologica Sichuan
关键词
铅锌矿矿床
地质特征
控矿条件
会理天宝山
Pb-Zn deposit
geological feature
ore control condition
Tianbaoshan, Huili
