老挝班康姆铜金矿床地质特征及找矿方向

摘要

老挝班康姆铜金矿位于老挝西北部，受琅勃拉邦断裂带影响，在本区发育一系列次级断裂，矿体受 NE― NNE向韧脆性剪切带控制，本文通过综合分析班康姆铜金矿床成矿地质背景、矿区地质特征、围岩蚀变特征及矿床成因等，认为班康姆铜金矿为构造热液叠加改造型矿床，具有较大的找矿潜力，并提出了对本区该类型金矿的找矿方向。%Pangkuam Cu-Au deposit is located in northwestern Laos.Due to the effect of Luang Prabang frac-ture zone,and a series of secondary fractures are developed in this area.The orebodies are controlled by NE-NNE-trending ductile brittle shear zone.Through comprehensive analysis of ore-forming geological back-ground,geological characteristics,wall rock alteration characteristics and deposit genesis of Pangkuam Cu-Au deposit,the authors believed that Pangkuam Au deposit was a tectonic-hydrothermal superimposition-transformation type deposit with great potential for prospecting.The authors also put forward the prospec-ting direction of the same type gold deposits in this area.