Remote sensing studies in enhancement of Iron-oxide and Laterite outcrops in the east of Khuzestan(Dehdasht area) using by Crosta Technique

Category GIS & Remote sensing
Group GSI.IR
Location 23th symposium on geosciences
Holding Date 05 May 2008

      The study area with several Laterite- Bouxite and iron-oxide occurrences is located in the east of khuzestan province (ca. 20km east of Dehdasht city). In this paper, Crosta Technique is tested for enhancements and discrimination of iron-oxide and Laterite-Bouxite deposits in the study area. The PCA Eigenvector and Eigenvalues were determined for bands 1,3,4,5 of ETM-Landsat. The analyses show that PC1 indicates albedo, PC2 differentiate visible and infrared band characteristics and PC3 indicates vegetation cover. PC4 enhances iron-oxides (after negation) in the study area. The field observations reveal that the distribution of the iron-oxides deposits produced by this method is well in accordance with earlier reports.