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Mid-Ediacaran ice-rafting in the Adelaide Geosyncline and Officer Basin, South Australia

By
Victor A. Gostin
Victor A. Gostin
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David M. Mckirdy
David M. Mckirdy
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Lynn J. Webster
Lynn J. Webster
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George E. Williams
George E. Williams
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Published:
January 01, 2011

Abstract

Sedimentary features characteristic of ice-rafting are present in the Bunyeroo Formation (Wilpena Group) of the Adelaide Geosyncline and in the coeval Dey Dey Mudstone (Ungoolya Group) of the eastern Officer Basin (Figs 66.1 & 66.2), providing evidence of a mid-Ediacaran glacial climate in South Australia. The Acraman asteroid impact, a negative shift in marine δ13C, and a major acritarch turnover coincided with this frigid epoch.

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Contents

Geological Society, London, Memoirs

The Geological Record of Neoproterozoic Glaciations

Emmanuelle Arnaud
Emmanuelle Arnaud
University of Guelph, Canada
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Galen P. Halverson
Galen P. Halverson
McGill University, Canada
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Graham Shields-Zhou
Graham Shields-Zhou
University College London, UK
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Geological Society of London
Volume
36
ISBN electronic:
9781862394117
Publication date:
January 01, 2011

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