Author : Basavarajappa H.T 1
Date of Publication :4th June 2020
Abstract: Steatite with wide diversified applications and varied compositions is one of the most important industrial materials. In 2013, India ranked 2nd position in terms of quantum production of Steatite and talc mineral. Each steatite deposit being unique needs to be characterized in terms of its genesis and more so in respect of ultramafic-derived steatite deposits which although minor account for the best in terms of quality and application. Steatite is a massive variety of talc (hydrothermally altered ultramafic rock) occurs associated with ultramafic rocks of the Sargur Group and Bababudan Group. Steatite is a soft talcose rock that is easily carved even with stone, bone or metal tools. In the Bronze Age, steatite vessels seemed to become more common. The present study demonstrates the geochemical and hyperspectral characterization of steatite deposits in Bhahaddurghatta-Hosahatty village. This deposit occurs to be linear shaped with almost NNW-SSE direction. Transmitted light microscope, SEM-EDX and Spectro-Radiometer instruments were actively utilized as methodology on economic deposits of steatite in the study area. The spectral signatures of the collected samples were derived in laboratory environment to achieve better accuracy based on their physico-chemical and optical properties. The lab spectral absorptions were studied with the spectra of USGS and JPL mineral library. The final results highlight the characterization of industrial steatite deposits for its effective mapping and utilization.
Reference :
-
- Abrar Ahmed, Basavarajappa H.T, Manjunatha M.C, Maruthi N.E and Siddaraju M.S (2019). Physico-chemical characteristics and Hyperspectral Signatures on Steatite Deposits around Andale Village, Dharwar Craton, Karnataka, India, Journal of Emerging Technologies and Innovative Research (JETIR), Vol.6, Issue.6, Pp: 473-480.
- Abrar Ahmed, Basavarajappa H.T, Maruthi N.E and Siddaraju M.S (2020). Hyperspectral Signatures and Petrographic Studies of Steatite Deposit within Ultramafic (Pyroxenite) Rock of Dharwar Craton, Around Karigaala Area, Mysuru District, Karnataka, India, International Journal of Advanced Research in Engineering and Technology (IJARET), Vol.11, No.2, Pp: 124-135.
- Ali Mohammad Qaid, Basavarajappa H.T and Rajendran S.(2009). Integration oof VNIR and Spectral Reflectance for Mapping Mineral Resources; A case study, North East of Haah, Yeman, Journal of Indian Society of Remote Sensing, Vol.37, Pp: 305-315.
- Basavarajappa H.T, Manjunatha M.C and Rajendran S (2015). Integration of Hyperspectral Signatures and Major Elements of Iron Ore Deposits around Holalkere Range of Megalahalli, Chitradurga Schist Belt, Karnataka, India, Journal of The Indian Mineralogist, Vol.49, No.1, Pp: 85-93
- Basavarajappa H.T, Manjunatha M.C, Rajendran S and Jeevan L (2017). Determination of Spectral Characteristics on Archaean Komatiites in Ghattihosahalli Schist Belt (GSB) of Kumminagatta, Chitrdurga district, Karnataka, India, International Journal of Advanced Remote Sensing and GIS, Cloud Publications, Vol.6, Issue.1, Pp: 2416-2423.
- Basavarajappa H.T, Maruthi N.E, Jeevan L and Manjunatha M.C (2018). Hyperspectral Signature study using Geomatics on Gem verity of Corundum bearing Precambrian Litho-units of Mavinahalli area, Mysuru district, Karnataka, India, International Journal of Computer Engineering & Technology (IJCET), Vol.9, Issue.1, Pp: 102-112.
- Clark, R.N., King, T.V.V., Klejwa, M., Swayze, G.A. and Vergo, N. 1990. High spectral resolution reflectance spectroscopy of minerals. J. Geophys. Res., 95, pp.12653-12680.