Abstract
Abstract The Korucu-Dugla study area ( 225km2 ) located in western Turkey was selected for the application of Landsat Thematic Mapper ( TM) data to geological studies. A wide variety of image processing techniques including; principal component analysis ( PC) intensity-saturation-hue transformation ( ISH), TM band ratios, and edge enhancement were applied to discriminate the lithologies and structure as well as associated areas of hydrothermal alteration. Colour composites of PCI, 2 and 3, always encoded red, green and blue respectively, PC4, 3 and 2, ISH transformation of TM bands 1, 3 and 5, were found most suitable for lithology and boundary discrimination in the area. A colour composite of 3/ 1, 4/ 3, and 5/ / 7 ratio images was prepared to separate altered areas. Altered areas, which have potential for mineralization, were mapped on the constructed geological map. A number of previously unmapped faults and subunits of the formations were discriminated successfully. A lineament map and rose diagram we...
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