塔吉克斯坦阿德拉斯曼-卡尼曼苏尔铅锌矿集区找矿潜力分析--基于ASTER遥感数据应用

Analysis of Prospecting Potential in the Adrasman-Kanimansur Lead-Zinc Concentration Area of Tajikistan--Based on Application of ASTER Sensing Data

为服务于“一带一路”沿线国家矿产资源风险勘查及矿山企业“走出去”发展战略,降低境外矿产资源勘查风险,充分发挥遥感先行的现实意义。选择塔吉克斯坦阿德拉斯曼-卡尼曼苏尔铅锌矿田为研究区,以地质资料为基础,在充分总结与构造运动密切相关的热液脉型铅锌矿控矿要素的基础上,基于ASTER遥感数据,利用滤波法、波段比、PCA等遥感信息挖掘技术,依据控矿构造、含矿围岩和蚀变信息3个成矿要素的基本特征,提取相关控矿信息,并基于空间分布规律,最终圈定3处找矿靶区。结合区域成矿地质条件分析认为,阿德拉斯曼-卡尼曼苏尔铅锌矿集区中部具有较好的铅锌找矿潜力。

In order to serve the risk exploration of mineral resources of"One Belt And One Road"countries and the"going out"strategy of mineral resources of enterprises,reduce the risk of mineral resources exploration abroad and give full play to the practical significance of remote sensing.In this paper,the Adrasman-Kanimansur Pb-Zn ore field in Tajikistan is selected as the research area.Based on geological data,the ore-controlling elements of the hydrothermal vein type lead-zinc ore deposit which is closely related to the tectonic movement are fully summarized.Based on directional filtering,band ratio,PCA and other remote sensing information mining techniques,using ASTER remote sensing data and combined with the basic characteristics of the three ore-forming elements,such as fault,ore-bearing surrounding rock and alteration information,extract the ore-controlling information.Based on their spatial distribution,three prospecting target areas were finally delineated.Combined with the analysis of metallogenic geological conditions,it is considered that the central area of Adrasman-Kanimansur Pb-Zn concentration area has good Pb-Zn prospecting potential.