几内亚尼亚加索拉(Niagasola)金矿区矿床地质特征及找矿标志  

Geological characteristics and prospecting indicators of Niagasola gold district,Guinea

作　　者：尹艳广 李伟[1] 阮平鸿 张巨伟[1] 黄浩[1] 汪树栋[1] 张沛 YIN Yanguang;LI Wei;RUAN Pinghong;ZHANG Juwei;HUANG Hao;WANG Shudong;ZHANG Pei(China Non-ferrous Metals Resources Geological Survey,Beijing 100012)

机构地区：[1]有色金属矿产地质调查中心,北京100012

出　　处：《矿产勘查》2020年第6期1263-1269,共7页Mineral Exploration

摘　　要：尼亚加索拉金矿区位于西非克拉通几内亚东北部锡吉里盆地,虽经历近十年的勘查开发,但一直缺乏其成矿方面的研究。笔者通过分析成矿地质背景、矿区地质特征和总结目前地质勘查工作成果,初步厘定了矿区构造变形期次与成矿的关系,揭示了矿区中发育的3期构造变形作用都对成矿起着促进作用,矿体产出受岩体内外接触带、层间裂隙及断裂旁侧裂隙带的控制。已有的地质资料均显示该矿区成矿条件优越,具有大型—超大型金矿的找矿潜力。The Niagasola Gold District located in Siguiri Basin,Northeast Guinea,West African. Although it has undergone exploration and development for nearly ten years,there has been a lack of research reports on mineralization. Based on the geological setting of deposit and feature of ore district,together with the results of the current geological exploration,aims to determine the relationship between the structural deformation and the mineralization. Results show that the deposit was developed by three-stage tectonic deformation and was controlled by the contact zones and fractures of interlayer and beside the fault. Generally,the Niagasola Gold District is featured by superior mineralization conditions and the prospecting potential of giant gold deposits.

关 键 词：金矿床 地质特征 找矿标志 几内亚 锡吉里盆地 

分 类 号：P624.6[天文地球—地质矿产勘探]