The abundances of some trace-elements in the first-ever reported sample of spinifex-textured komatiite from Ghatti Hosahalli, Karnataka

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Ramakrishnan, M. and Mahabaleswar, B. and Viswanathan, S. (2012) The abundances of some trace-elements in the first-ever reported sample of spinifex-textured komatiite from Ghatti Hosahalli, Karnataka. Journal of the Geological Society of India, 79 (4). pp. 361-366. ISSN 0974-6889

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Official URL: https://doi.org/10.1007/s12594-012-0052-9

Abstract

The paper reports wavelength-dispersive x-ray fluorescence spectrometric data on the abundances of Sc, V, Cr, Co, Ni, Cu, Zn, Rb, Sr, Y, Zr, Nb, Ba, Pb, and Th in the first-ever reported sample of spinifex-textured komatiite from India at Ghatti Hosahalli in Karnataka. With some exceptions, these abundances are similar to those reported for the spinifex-textured komatiite from the Barberton greenstone belt in South Africa. The values for some alteration-resistant element ratios - Ti/Zr, Ti/Y, Ti/Sc, Ti/V, Zr/Y, Zr/Sc, Sc/Y, V/Zr, and V/Sc - for chondrite and for spinifex-textured komatiites from Ghatti Hosahalli (India), Barberton (South Africa), Munro (Canada), and Yilgarn (Australia) reveal that, except for the Ti/Zr ratio for the Ghatti Hosahalli komatiite, the other ratios from the four terrains define a unique trend that is almost superimposed on the trend defined by these ratios for chondrite. This suggests that the processes of formation of komatiitic lavas from the four far-separated terrains were similar, and that, the source regions from which these lavas formed had a chondritic composition.

Item Type: Article
Additional Information: cited By 3
Uncontrolled Keywords: chondrite; komatiite; lava; texture; trace element, Barberton; India; Karnataka; Mpumalanga; South Africa, Spinifex
Subjects: Faculty of Science > Earth Sciences > Geology
Divisions: Jnana Bharathi / Central College Campus > Department of Geology
Depositing User: Mr. Kirana Kumar D
Date Deposited: 04 Apr 2016 06:48
Last Modified: 04 Apr 2016 06:48
URI: http://eprints-bangaloreuniversity.in/id/eprint/2740

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