津巴布韦德特地区卡玛提维锡多金属矿地质特征及找矿方向

Geological characteristics and prospecting direction of the Kamativi tin-polymetallic deposit in the Dete area,Zimbabwe

津巴布韦德特地区广泛出露电气石伟晶岩和含锡石伟晶岩,自1920年在该地区发现锡伟晶岩以来,总计持续了74年的矿山经营,直到1994年因资源枯竭关闭,因此寻找深边部隐伏矿体显得尤为重要。本文在现场考察以及收集该地区以往锡矿山开采资料的基础上,总结了含锡石伟晶岩的空间分布、地质特征和找矿标志,结合矿山钻孔资料和认为该区含锡伟晶岩中锂、铌、钽均具有较好的成矿潜力。本文在分析和讨论该矿床的产出地质环境和矿规律基础上,提出了该区下一步的找矿方向,供下一步勘查部署参考。

Tourmaline pegmatite and tin-bearing pegmatite are widely exposed in the Weidt area of Zimbabwe.Since the discov⁃ery of tin pegmatite in the area in 1920,the mine has been operating for a total of 74 years until it was closed due to resource depletion in 1994,so the deep side was searched for The hidden ore bodies are particularly important.On the basis of field investigation and col⁃lection of previous tin mine mining data in this area,this article summarizes the spatial distribution,geological characteristics and pros⁃pecting signs of tin-bearing pegmatites,combined with mine drilling data and believes that the tin-bearing pegmatites in the area con⁃tain lithium,Niobium,and tantalum all have good mineralization potential.Based on the analysis and discussion of the geological envi⁃ronment and ore rules of the deposit,this article puts forward the future prospecting direction of this area,which is a reference for the next exploration and deployment.