• Abrar Ahmed
• Basavarajappa H.T
• Manjunath M.C
• Maruthi N.E
• Siddaraju M.S

Abstract Dharwar Craton composed of large diversified litho units. The rock formations of Karnataka in the geological history are largely confined to two oldest eras the Archean and the Proterozoic, the rest of the great periods from Cambrian to resent. Most of the economical valuable mineral deposits are associated with Precambrian rocks. Steatite is a compact metamorphic rock with much of it talc mineral along with other minor impurities. Due to their unique heat resistant and other physical properties they are used in ovens, masonry heaters, fireplace liners, cookware, electronic insulator and carvings etc. Occurrences and good workable deposit of Steatite around Vadrahalli village of Hassan district have been identified and demarcated. Fresh samples of steatite, metabasalt, basic dyke and pegmatic gneiss were randomly collected in the field through GTC (Ground Truth Check). Rock samples were studied under transmitted light microscope, Reflected light microscope, SEM-EDX and Spectro-Radiometer. Spectral signatures were studied by Spectro-Radiometer (Spectral Evolution SR-3500) instrument, DARWinSP.V.1.3.0 and ArcGIS software. Petrography helped to know the minerals which are associated with steatite, SEM-EDX studies helped to know the high Mg and Cr elemental percentage present in the given steatite sample. The spectral signatures of the collected samples were derived in laboratory environment to achieve better accuracy. Spectral signature curves of steatite were derived based on their physico-chemical and optical properties. The present work is aimed for studying the petro-chemical signatures and hyperspectral signatures of steatite and their associated litho units. The final results highlight the spectral characters of steatite for mapping and demarcating the deposit in the study area and also for better mapping in similar terrains around Precambrian terrains, Dharwar Cratonic group of Karnataka State. Keywords: Steatite, Petrography, Hyperspectral Signatures, SEM-EDX studies, Vadrahalli village

Keywords: Steatite, Petrography, Hyperspectral Signatures, SEM-EDX studies, Vadrahalli village

"HYPERSPECTRAL SIGNATURES AND PETRO-CHEMICAL STUDY ON STEATITE DEPOSIT AROUND VADRAHALLI VILLAGE, DHARWAR CRATON, KARNATAKA, INDIA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 12, page no.1148-1157, December-2020, Available :http://www.jetir.org/papers/JETIR2012355.pdf

"HYPERSPECTRAL SIGNATURES AND PETRO-CHEMICAL STUDY ON STEATITE DEPOSIT AROUND VADRAHALLI VILLAGE, DHARWAR CRATON, KARNATAKA, INDIA", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 12, page no. pp1148-1157, December-2020, Available at : http://www.jetir.org/papers/JETIR2012355.pdf