Studies on Ilmenite of Chavara and Manavalakurichi Deposites, Southwest Coast of India

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Studies on Ilmenite of Chavara and Manavalakurichi Deposites, Southwest Coast of India

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Title: Studies on Ilmenite of Chavara and Manavalakurichi Deposites, Southwest Coast of India
Author: Ajith,G Nair; Damodaran,K T
Abstract: The present work attempts to trace the variation in the physical and chemical behavior of ilmenite, since its release from country rocks and subsequent transportation to the coast through the progressive weathering environments of laterite, sedimentary rocks, rivers and estuarine systems. Since the hinterland of the study area consists of crystalline and sedimentary rocks and their weathered forms (laterites), the contribution of each lithological system to the beach placer is attempted. The results of the study show that the most magnetic fraction contains more content of altered phases than the relatively unweathered fractions. The fractions separated above 0.35A define a high grade of ilmenite ore enriched in Ti content. The lattice volume generally decreases with alteration. The magnetic studies revels that the Chavara ilmenite are found to be made up to low magnetic crops with about 46% of the bulk ilmenite constituted by fractions separated at above 0.35A. In the Manavalakurichi ilmenite on the other hand, around 91% of the beach ilmenite is made of fractions separated at or below 0.3A
URI: http://dyuthi.cusat.ac.in/purl/80
Date: 2001


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