application of remote sensing in monitoring of faults

the siyah bisheh area is located in central part of alborz zone, 40km south of amol, iran. rock units exposing in the area consists of sedimentary (carbonates, sandstone, siltstone), volcano- sedimentary (andesite to andesitic tuff, tuff), ignimbrite and basalt. when erosion and tectonics have rendered volcanic structures undetectable, remote sensing provides an invaluable tool for their identification, with finding relation between lithology and vegetation is showed that the integrated use of remote sensing techniques and field studies as a powerful tool to distinguish and map the relationships between rock units, structures and alteration zones associated with mineral deposits along the siyah bishe area. the main image analysis techniques involved in this study were principal component analysis (pca) and false color composite (fcc). in this study, an anomaly area is distinguished in the southeastern part of the siyah bishe area. hydrothermally altered rocks contain economic mineral deposits whereas unaltered country rocks are non-mineralized. approximately 5 km2 of the area is underlain by altered rocks, but less than 1 km2 of the altered area contains economic minerals.