Writers : Ahmadi Rohany, R.; Karimpour, M. H.; Rahimi, B.; Malakzadeh Shafaroudi, A.
Refference : 2nd National Symposium of Iranian Society of Economic Geology
Publishing Year : 1390

Abstract :

The studied area is located in east of Bajestan township (Khorasan Razavi Province) and this region is a part of Lute block. Bajestan granite is the most important feature in this area.
Composition of the granite varies from granite to diorite. Processing satellite data in this area was done with SPOT, ASTER and ETM+ data. Using PCA method(standard and selective) on the ETM+ data and processing SPOT data shows that this intrusive body doesnt have a equal chemical composition. The central part of the intrusive body is distincted from margin and is darker than margin. For enhancing linear structure, High pass filter was applied (sharpen edge 11). with using this filter linear structures became completely obvious and show northwestern-southeastern trend. For determining alteration zones in this area Spectral analysis (SAM method), band ratio and band composition were used. The results were showed epidote-chlorite, argilc, silicified and carbonate alterations especially in north and east of this district. With merging all of the information we can result that alteration zones have relation with linear structure in this area.

Subject List : Remot Sensing Application