Abstract
Bauxite deposits of Mainpat Plateau Surguja District, India, are composed of kaolinite, gibbsite, goethite, anatase, and bohemite. Quartz and micas are absent in the samples. The presence of boehmite and goethite are evidences of intense weathering during the formation of the bauxite deposits. The Mainpat Plateau is a mesa landform, at an elevation of around 1,060 m from msl in comparison to the general elevation of 580, consisting of Archaeans (granite−gneisses, phyllite, etc.) at the base, Gondwanas and Deccan basalt, and at the top having a cover of laterite and bauxite. The extremely high values of the chemical index of alteration, and the low values of the alkali metals and alkali earth metals, support an intense weathering origin for the bauxite deposit. There is evidence of deposition in the deposits based on the presence of pisoids in the bauxite samples and the composition of the parent rock. Kaolin minerals were first produced by the hydrolytic weathering of aluminous sediments and then gibbsite was formed as early kaolin was desilicated. The bauxite is having high TiO2 up to 17 %. The Mainpat laterite/bauxite deposits are characterized by having 50−58 % average Al2O3 and 10−30 % Fe2O3.
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The authors acknowledge the head of the Department Applied Geology, Dr. Hari Singh Gaur University Sagar, for providing research facilities to conduct this works. The authors also acknowledge the officials of Dr. Hari Singh Gaur University, Sagar (Madhya Pradesh, India).
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Patel, V.N., Trivedi, R.K., Adil, S.H. et al. Geochemical and mineralogical study of bauxite deposit of Mainpat Plateau, Surguja District, Central India. Arab J Geosci 7, 3505–3512 (2014). https://doi.org/10.1007/s12517-013-0999-x
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DOI: https://doi.org/10.1007/s12517-013-0999-x