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Ediacaran events: boundary relationships and correlation of key sections, especially in ‘Armorica’

Published online by Cambridge University Press:  01 May 2009

R. J. F. Jenkins
R. J. F. Jenkins
Affiliation:
Centre for Precambrian Research, University of Adelaide, North Terrace, Adelaide, South Australia 5000, Australia
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Abstract

The transitional interval between the Adelaidean and Ediacaran systems in the central Flinders Ranges, South Australia, comprises mainly basinal sediments, with some tuff beds (Bunyeroo Formation) and a widespread thin dolomite bed which apparently evidences a brief regressive episode (base of Wonoka Formation). Body imprints of metazoans, trace fossils and probable faecal pellets are present at various levels in the Ediacaran succession. Comparable assemblages occurring in key successions in southern Africa, northern Russia, Siberia, Newfoundland and England promise a global biostratigraphy. One Ediacaran body fossil occurs in the Yangtze Gorges section, China. Analysis of abundant late Precambrian radiometric data for the present North Atlantic margins suggests that the Ediacaran may be dated between about 590 Ma and ~ 545–540 Ma.

Type
Articles
Information
Geological Magazine , Volume 121 , Issue 6 , November 1984 , pp. 635 - 643
Copyright
Copyright © Cambridge University Press 1984

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