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The Significance of Crystallinity in Hydrothermal Alteration Mapping: A Case Study of Alem Tena Area of Main Ethiopia Rift, Ethiopia

Author Affiliations

  • 1School of Earth, Atmospheric and Environmental Sciences, University of Manchester, M13 9PL, UK

Int. Res. J. Earth Sci., Volume 3, Issue (4), Pages 12-17, April,25 (2015)

Abstract

This study examines the kaolinite crystallinity obtained from spectral characteristics of kaolinite mineral as one of the minerals revealed by short wave infra-red (SWIR) spectroscopy during the alteration mineral mapping of Alem Tena area. About forty samples were analyzed for kaolinite crystallinity using the method of Slope Parameter and Kaolinite Crystallinity Index (KCI). The results obtained from both methods indicate that the area is of high kaolinite crystallinity which is important for better understanding of the origin of formation of the kaolinite and other associated alteration minerals over the study area.

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