LITHOLOGICAL IDENTIFICATION OF ROCK UNITS USING ASTER L1-T1 DATASET (GEOLOGICAL MAPPING), LINEAMENT MAPPING USING LANDSET-8 DATASET AND 3D MODELS USING SRTM DATASET OF CHAGAI, BALOCHISTAN PAKISTAN

Abstract

The objective of this dissertation is to integrate Remote Sensing with Geology. Remote Sensing techniques have been applied in this study to identify and delineate rock units in Chagai, Balochistan basin, which is our study area. To delineate lithologies respectively, digitization is carried out over the lithological map of the study area. Followed by pre processing of the ASTER dataset,which is further aided by processing of the data and is made ready to interpret. .To correlate the results for accurate interpretation, processed datasets are compared with the spectral signatures provided by USGS Spectral Library. Furthermore, faults in the study area are confirmed by lineament mapping technique, using LANDSAT-8 dataset. Multiband analysis for the identification of lineaments is used which are compared with the faults, already provided by Geological Survey of Pakistan. In addition, density maps of these lineaments are also prepared. Finally, Shuttle Radar Topographic Mission (SRTM) datasets are used to develop 3D models of the study area using Raster Terrain Analysis.