摘要
坦桑尼亚中西部的鲁夸地区是重要的铁铜金多金属成矿区,矿产资源丰富,找矿前景较好。文章以Manyoro和Sangu两个地区为研究区,利用中高空间分辨率的多光谱数据,结合已知地质资料的分析,进行了遥感岩性地层和构造解译,并基于岩矿光谱特征,提取出了铁染和羟基蚀变信息,通过成矿地质条件和找矿预测研究,圈定了5处遥感找矿靶区,为坦桑尼亚中西部鲁夸地区进一步开展矿产资源调查工作提供了基础资料和科学依据。
Rukwa region in the central and western Tanzania is an important iron - copper - gold polymetallic metallogenic area, which is abundant in mineral resources and has great prospecting potential. In the case study, the medium and high spatial resolution multi - spectral remote sensing data was applied for prospecting prediction in two areas - Manyoro and Sangu in Rukwa region. The lithostratigrapbic units and structures were interpreted based on the remote sensing data analysis in combination with the existing geolog- ical and mineral resource information. The alteration information such as iron stained and hydroxyl were extracted based on the remote sensing spectral characteristics of rocks and mineralized zone. Five remote sensing prospecting targets were delineated by the integrated analysis of ore - forming geological conditions and prospecting prediction. These results provide basic data and scientific basis for the further exploration of mineral resources in Rukwa region,Tanzania.
出处
《矿产勘查》
2015年第4期478-486,共9页
Mineral Exploration
基金
国外矿产资源风险勘查项目(编号:10201B004)资助
关键词
QUICKBIRD
ETM+
信息提取找矿预测
Quickbird, ETM ＋ , information extraction, prospecting prediction, Rukwa, Tanzania
