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Sulphur isotope evidence for the origin of cave evaporites in Ogof y Daren Cilau, south Wales

Published online by Cambridge University Press:  05 July 2018

Simon H. Bottrell
Simon H. Bottrell*
Affiliation:
Department of Earth Sciences, University of Leeds, Leeds LS2 9JT, U.K.
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Abstract

Gypsum evaporites are forming under desiccating conditions in relict cave passages in Mynydd Llangattwg, south Wales. Sulphur isotope compositions of these sulphates indicate that oxidation of diagenetic pyrite in the overlying Millstone Grit is the source of sulphate solutions, rather than dissolution of evaporitic sulphate in the limestones.

Keywords

gypsumevaporitessulphur isotopescavesWales
Type
Mineralogy and Geochemistry
Information
Mineralogical Magazine , Volume 55 , Issue 379 , June 1991 , pp. 209 - 210
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1991

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