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.