What controls selenium release during shale weathering?

Matamoros-Veloza, A.; Newton, R. J.; Benning, Liane G.

doi:10.1016/j.apgeochem.2011.03.109

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What controls selenium release during shale weathering?

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Matamoros-Veloza, A.
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Newton, R. J.
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Benning, Liane G.
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Matamoros-Veloza, A., Newton, R. J., Benning, L. G. (2011): What controls selenium release during shale weathering? - Applied Geochemistry, 26, S222-S226.
https://doi.org/10.1016/j.apgeochem.2011.03.109

Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_806919

Abstract

This study demonstrates that only a combination of a chromous chloride reduction with dual sequential extraction schemes can clearly separate the proportions of Se present in the sulphide versus the organic pools in shales. The data reveals that even small amounts of pyrite outcompete the organic matter for the available Se and pyrite oxidation will control the release of selenium during shale weathering. (C) 2011 Elsevier Ltd. All rights reserved.