Bowden, S.

Parnell, J.

Spinks, S.

Still, J.

Thayalan, W.

Mineralogical Magazine

English

AbstractCadmium sulfide mineralization occurs in grey-black shales of the late Mesoproterozoic Stoer Group, Torridonian Supergroup, northwest Scotland. Cadmium is strongly redox-controlled, and normally concentrated in anoxic marine sediments or epigenetic mineralization involving organic matter. However the Stoer Group was deposited in a terrestrial environment, including lacustrine deposits of shale. At the limited levels of atmospheric oxygenation in the Mesoproterozoic (∼10% of present), the near-surface environment could have fluctuated between oxic and anoxic, allowing fractionation of Cd from Zn, and the formation of Cd sulfide rather than Cd-bearing sphalerite. This occurrence emphasizes the importance of the Stoer Group as a record of the Mesoproterozoic terrestrial environment.</jats:p

J. Parnell

J. Still

S. Spinks

W. Thayalan

S. Bowden

Crossref

Cadmium sulfide in a Mesoproterozoic terrestrial environment

Aberdeen University Research

https://aura.abdn.ac.uk/bitstream/2164/4221/1/combined_submission_281113.pdf

Cadmium sulfide in a Mesoproterozoic terrestrial environment

Abstract

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Aberdeen University Research