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The AAPG/Datapages Combined Publications Database

CSPG Bulletin

Abstract


Bulletin of Canadian Petroleum Geology
Vol. 12 (1964), No. 3. (September), Pages 771-772

Lower Cretaceous Microfauna from Bear Villa #1, Alberta [Abstract]

A. F. Nikiforuk

Sixty-nine specimens of Lower Cretaceous Foraminifera from the Bear Villa #1 Well, located in North Central Alberta, are figured and described. Fifteen genera (8 arenaceous, 7 calcareous) are distinguished in the described microfauna. The arenaceous genera are Ammobaculites, Ammodiscus, Glomospira, Haplophragmoides, Miliammina, Nodosinella, Proteonina, and Tritaxia. The calcareous forms are included under the genera, Discorbis, Globulina, Lenticulina, Marginulina, Marginulinopsis, Robulus, and Saracenaria.

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On the basis of microfaunal evidence the Clearwater and Joli Fou formations, as developed in Bear Villa #1, are correlated respectively with the Clearwater and Joli Fou Formations of the type section along Athabasca River. Correlations are indicated with the Cummings Member and basal Lloydminster Shale; with the upper part of the Loon River and basal part of the Peace River Formations and the Harmon Shale and Cadotte Members of the Peace River Formation.

The basal Clearwater fauna reflects open seaway shallow neritic facies, the middle and upper Clearwater fauna suggest shallow neritic to estuarine facies and the Joli Fou fauna suggests a shallow enclosed bay.

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ACKNOWLEDGMENTS AND ASSOCIATED FOOTNOTES

1956, M.Sc., University of Alberta

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