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Book Chapter

Evidence of Resedimentation in Chalk from the Central Graben, North Sea

By
R. A. Schatzinger
R. A. Schatzinger
Phillips Petroleum Company, Bartlesville, OK 74004
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C. T. Feazel
C. T. Feazel
Phillips Petroleum Company, Bartlesville, OK 74004
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W. E. Henry
W. E. Henry
Phillips Petroleum Company, Bartlesville, OK 74004
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Published:
January 01, 1985

Abstract

The slow rain of pelagic skeletons to the sea floor is not the depositional event commonly recorded in North Sea chalk. Cores from the Central Graben reveal a spectrum of resedimentation features interpreted as the products of slumps, debris flows, and turbidity currents. Evidence for reworking includes mixed faunas from discrete environments, intermingled biostratigraphic zones, chalk clasts, contorted bedding, calcarenite, synsedimentary microfaults and fractures, and the absence of bioturbation. Recognition of allochthonous intervals and interpretation of the mechanisms responsible are important to problems of correlation, reservoir geometry, and engineering properties.

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Contents

SEPM Core Workshop Notes

Deep-Water Carbonates: Buildups, Turbidites, Debris Flows and Chalks—A Core Workshop

Paul D. Crevello
Paul D. Crevello
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Paul M. Harris
Paul M. Harris
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SEPM Society for Sedimentary Geology
Volume
6
ISBN electronic:
9781565762619
Publication date:
January 01, 1985

GeoRef

References

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