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Devonian depositional environments in the Darwin Mountains: Marine or non-marine?

Published online by Cambridge University Press:  13 May 2004

Ken J. Woolfe
Affiliation:
Research School of Earth Sciences Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand Geology Department, James Cook University, Townsville, Queensland 4811, Australia E-mail: k_woolfe@trout.jcu.edu.au
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Abstract

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The depositional environment of the Devonian Taylor Group has been subject to considerable debate for over 30 years. The debate stems largely from a belief that the abundant and diverse trace fossils represent a marine ichnofauna, whereas sedimentary features, including palaeosols, desiccation polygons and red beds, are more typical of a non-marine setting. The debate is reconciled by a reinterpretation of the trace fossil assemblage which shows that the trace fossils comprise a typical fresh water (Scoyenia ichnofacies) assemblage, and their occurrence in the Taylor Group in the Darwin Glacier area is entirely consistent with deposition in a mixed fluvial-lacustrine-subaerial environment.

Type
Papers—Earth Sciences and Glaciology
Copyright
© Antarctic Science Ltd 1993