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Tufted microbial (cyanobacterial) mats from the Proterozoic Stoer Group, Scotland

Published online by Cambridge University Press:  01 May 2009

R. L. Upfold
R. L. Upfold
Affiliation:
Department of Geology, Sedimentology Research Laboratory, University of Reading, Whiteknights, Reading RG6 2AB, England
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Abstract

Upward-thinning stellate and polygonal carbonate structures are described and compared to modern and ancient stromatolites. Although tufted microbial mats are common in modern settings they have rarely been described from ancient rocks owing to their poor preservation potential. The preservation of these from the Stoer Group is due to early replacement by calcite before their original tufted relief could be obliterated by compaction. Associated limestones with some similar features are interpreted as flat to mamillated microbial mats.

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Type
Articles
Information
Geological Magazine , Volume 121 , Issue 4 , July 1984 , pp. 351 - 355
Copyright
Copyright © Cambridge University Press 1984

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