广西大厂铜坑锡多金属矿床地质特征及控矿因素

摘要

铜坑锡多金属矿位于丹池成矿带中部的大厂矿田内.通过对前人资料的搜集及井下详细的勘察,对铜坑锡多金属矿床的地质特征做了系统的总结,分析了控矿因素及其成因类型.结果表明,矿床的形成、空间分布受地层、岩性、构造、岩浆岩等因素所控制.根据以往勘察成果及综合研究,结合区域矿床对比,认为铜坑锡多金属矿床属海底火山喷气同沉积-岩浆叠加改造型矿床.%The copper pit tin-polymetallic deposit locates within Dachang ore field which are in the middle of Danchi metallogenic belt.Based on the collection of previous data and detailed underground investigation,systematic summary the geological characteristics of copper pit tin-polymetallic deposit and analyze the ore-control factors and its genetic type.The analysis indicates that the formation and spatial distribution of deposit is controlled by many factors such as stratum,lithology,structure and magmatic rock.According to previous investigation achievements and comprehensive research and combining with regional deposit comparison,it's found that the copper pit tin-polymetallic deposit belongs to submarine volcanic eruption synsedimentary-magma superposition reformation type ore deposit.