Mid-Ediacaran ice-rafting in the Adelaide Geosyncline and Officer Basin, South Australia
Victor A. Gostin, David M. Mckirdy, Lynn J. Webster, George E. Williams, 2011. "Mid-Ediacaran ice-rafting in the Adelaide Geosyncline and Officer Basin, South Australia", The Geological Record of Neoproterozoic Glaciations, Emmanuelle Arnaud, Galen P. Halverson, Graham Shields-Zhou
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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.