Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Geological Setting and Mineralogy of the Chromite and Some Associated Minerals of Kathapal, Dhenkanal District, Orissa


Affiliations
1 Department of Geological Sciences, Jadavpur University, Calcutta-700032, India
     

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The chromitite lodes are emplaced in serpentinites as banded layers, lenses or clots. The ores are high alumina chromite with RO:R2O3 ranging from 0.92 to 1.08 and formed by magmatic segregation.

Hydrothermal alteration has produced different chrome-bearing silicates like kammererite, uvarovite, chrome-amphibole, and chrome-bearing chalcedony, which occur either as transgressing veinlets in chromitites or in the interspaces between chromite grains. The primary dunite-peridotite has been altered to massive and compact serpentinite.


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  • Geological Setting and Mineralogy of the Chromite and Some Associated Minerals of Kathapal, Dhenkanal District, Orissa

Abstract Views: 190  |  PDF Views: 3

Authors

K. L. Chakraborty
Department of Geological Sciences, Jadavpur University, Calcutta-700032, India
Tapan Baidya
Department of Geological Sciences, Jadavpur University, Calcutta-700032, India

Abstract


The chromitite lodes are emplaced in serpentinites as banded layers, lenses or clots. The ores are high alumina chromite with RO:R2O3 ranging from 0.92 to 1.08 and formed by magmatic segregation.

Hydrothermal alteration has produced different chrome-bearing silicates like kammererite, uvarovite, chrome-amphibole, and chrome-bearing chalcedony, which occur either as transgressing veinlets in chromitites or in the interspaces between chromite grains. The primary dunite-peridotite has been altered to massive and compact serpentinite.