期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 7
出版社：Copernicus Publications
摘要：East Oweinat district is located in the south Western Desert of Egypt. It is mainly occupied by outcrops of Archean to Early Proterozoic rocks of high to medium metamorphic grade and younger granitoid rocks of calc alkaline and alkaline affinity. These rocks are unconformably overlain by Paleozoic and Mesozoic sediments as well as Quaternary deposits. Landsat TM images proved to be useful in surface mapping of lithologic and structural features in that area. RADARSAT-1 images reveal fluvial features beneath a surface cover of the desert sand. These features are not observable in Landsat TM images of similar resolution. In this work, the Principal Component Analysis (PCA) technique is used for merging RADARSAT-1 and Landsat TM images to enhance the interpretation of geological features. The data fusion produced a new data set of images showing enhanced subsurface structures such as foliation, faults and folds that control the distribution of the Banded Iron Formation and placer deposits in Quaternary paleo- drainages in the study district. The study demonstrates the utility of merging optical and radar remote sensing data for exploring mineral deposits in arid regions
关键词：East Oweinat; Principal Component; Landsat TM; RADARSAT-1; Banded Iron Formation
