Abstract

Acritarchs are described from rocks of the Upper Proterozoic Eleonore Bay Group and Tillite Group and from the Lower Cambrian Bastion Formation and Ella Island Formation. Twenty-four previously described acritarch taxa have been identified. The state of preservation is variable perhaps depending on variable thermal alteration due to thickness of overburden, tectonic deformation and metamorphism. Palaeoenvironmental aspects of some acritarchs are discussed. The acritarchs of the Ella Island Formation and Upper Bastion Formation indicate a late Early Cambrian age in agreement with the age indicated by shelly faunas. A Vendian age is ascribed to the Tillite Group. The upper part of the Eleonore Bay Group is regarded as Late Riphean. Correlations of these units with Lower Cambrian and Upper Proterozoic sequences in the Russian Platform, Scandinavia and elsewhere are presented.

Highlights

  • This paper deals with the results of a micropalaeontological investigation of the Upper Proterozoic and Lower Cambrian sequence in the Caledonian fold belt of East Greenland in the area west of Kong Oscars Fjord

  • Reference is made in the present paper to my previous account on the microfossils of the Visingso Beds in southern Sweden (Vidal, 1976a) which includes a compilation of most of the relevant data available at the time

  • The samples yielding fully identifiable microfossils are considered, and the results indicate that roughly 52 per cent of the processed samples are fossiliferous

Read more

Summary

Introduction

This paper deals with the results of a micropalaeontological investigation of the Upper Proterozoic and Lower Cambrian sequence in the Caledonian fold belt of East Greenland in the area west of Kong Oscars Fjord (fig. 1). Nine samples from the Lower Limestone-Dolomite 'Series' (no bed numbers distinguished) at location 10 Acritarchs preserved in full relief are restricted to a few samples of the Bastion Formation, Tillite Group and Limestone-Dolomite 'Series'.

Results
Conclusion
Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.