Chapter 66 Mid-Ediacaran ice-rafting in the Adelaide Geosyncline and Officer Basin, South Australia

Autor:	George E. Williams, Lynn J. Webster, Victor A. Gostin, David M. McKirdy
Rok vydání:	2011
Předmět:	Officer Oceanography Group (stratigraphy) Acritarch Geology Sedimentary rock Glacial period Structural basin Geosyncline Ice rafting
Zdroj:	Geological Society, London, Memoirs. 36:673-676
ISSN:	2041-4722 0435-4052
Popis:	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 δ 13 C, and a major acritarch turnover coincided with this frigid epoch.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::216b5e27ddf712d29677ec50aacef98a https://doi.org/10.1144/m36.66 Zobrazit plný text záznamu