新疆若羌县东南部遥感地质特征及成矿条件分析

Remote sensing geological characteristics and metallogenic condition

研究区位于阿尔金有色金属、贵金属、铁、石棉、玉石成矿带上,具有优越的成矿地质条件和找矿潜力。但其地处高寒山区,地质工作程度较低。充分发挥遥感技术优势,不仅可以克服自然条件的限制,而且可以快速地了解研究区的区域地质特征和成矿规律。文章利用多光谱卫星数据,结合对已有地质矿产资料的分析,在分析遥感影像特征和建立解译标志的基础上,进行了各类地质体的遥感解译。经过野外查证,重新厘定了地质体界线,新发现13处矿化点,通过成矿地质条件分析与遥感找矿预测研究,圈定了5处遥感找矿靶区,为该地区进一步开展地质找矿工作提供了基础资料。

The study area is located in the Ahun non - ferrous metals, precious metals, iron, asbestos and jade metallogenic belt where favorable metallogenic geological conditions occur and there are great prospecting potential in the area. Due to the poor natu- ral condition, the exploration work has been less done. To apply the remote sensing technique for mineral resource survey, not only o- vercome the limitation of natural conditions, but also can quickly understand the regional geological characteristics and metallogenic regularity etc. This paper introduces the remote sensing interpretation of all kinds of geological bodies using multi - spectral satellite da- tain combination of the existing geological and mineralized data based on remote sensing image features analysis and interpretation signs establishment. By the field investigation, the geological boundaries have been re - determined, and newly thirteen mineralization occur- rences were outlined. Through metallogenic geological condition analysis and remote sensing prospecting prediction, five remote sensing prospecting target areas have been delineated, and this study will provide the basis data for further geological prospecting work.