老挝色贡省达景金矿地质特征与成矿预测  

Geological characteristics and metallogenic prediction of Dakcheung gold deposit in Xekong Province,Laos

作　　者：盛大志 徐巧 张鹤 贾若 董克飞 SHENG Da-zhi;XU Qiao;ZHANG He;JIA Ruo;DONG Ke-fei(Bejing Eco-friendly Exploration Technology Co.Ltd.,Beijing 101100;Deep Exploration Technic Center for Non-ferrous Mines,Beijing 100012;Qingdao Zhongkanpuhua Technology Group Co.,Ltd.,Qingdao 266000)

机构地区：[1]北京绿勘科技有限责任公司,北京101100 [2]有色金属矿山深部资源勘查工程技术研究中心,北京100012 [3]青岛中勘普华科技集团有限公司,山东青岛266000

出　　处：《世界有色金属》2023年第14期69-71,共3页World Nonferrous Metals

摘　　要：老挝金矿资源丰富,地质工作程度低,近年有望取得找矿突破。色贡省达景金矿是长山成矿带南段新发现的小型金矿床,前人以石英脉型金矿为目标,收效甚微。本文通过野外地质调查发现宽超过3千米的含金韧性剪切带,提出矿区包括石英脉型、构造蚀变岩型、糜棱岩型等3种类型的金矿体,并指明金矿浅表淋滤贫化作用和存在次生富集带的可能,发现了可供堆浸选金的氧化矿,明确了矿区及邻近区域具有大型以上金矿找矿前景。Laos is rich in gold resources and has a low degree of geological work.It is expected to make a breakthrough in prospecting in recent years.Dajing gold deposit in Segong Province is a newly discovered small gold deposit in the southern section of Changshan ore-forming belt.In this paper,a gold bearing ductile shear zone with a width of more than 3 km was found through field geological survey,and three types of gold orebodies including quartz vein type,tectonic altered rock type and mylonite type were proposed,and the possibility of superficial leaching dilution and secondary enrichment zone was pointed out.Oxidized ore for heap leaching was found.It is clear that the mining area and the adjacent area have prospecting prospect of large gold deposits.

关 键 词：老挝 色贡省 达景金矿 韧性剪切带 淋滤贫化 次生富集 

分 类 号：P618.2[天文地球—矿床学]