Lithological Discrimination And Mapping Using Aster Swir Data In The Tundi Area, Jharkhand

Author(s)	Pratikshya Mishra, E.N. Dhanamjaya Rao
Country	India
Abstract	ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) multispectral data is utilized in mineralogical and lithological mapping along with alteration zone mapping. The present study is carried out using ASTER data, which has shown the effectiveness SWIR spectral bands of ASTER data in lithological mapping. Field validation is carried out in the areas where lithological updation was expected from the sspectral analysis. From the band ratios, argillic, ferric, phyllic and propylytic alteration zones were demarcated. Thus, ASTER SWIR bands coupled with the advanced image enhancement techniques are recommended as a rapid and cost effective tool for lithological discrimination and mapping in the hostile terrain of Dhanbad and other geological areas.
Keywords	ASTER, Spectral Band Ratio, False Colour Composite , Argillic Alteration, Ferric Alteration, Phyllic Alteration, Propylytic Alteration
Published In	Volume 5, Issue 6, November-December 2023
Published On	2023-11-26
DOI	https://doi.org/10.36948/ijfmr.2023.v05i06.9468

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