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A rapid clay-mineral change in the earliest Priabonian of the North Sea Basin?

Published online by Cambridge University Press:  01 April 2016

R. Saeys ,
A. Verheyen  and
N. Vandenberghe
R. Saeys
Affiliation:
K.U. Leuven, Historical Geology, Redingenstraat 16, B-3000 Leuven, Belgium
A. Verheyen
Affiliation:
K.U. Leuven, Historical Geology, Redingenstraat 16, B-3000 Leuven, Belgium
N. Vandenberghe*
Affiliation:
K.U. Leuven, Historical Geology, Redingenstraat 16, B-3000 Leuven, Belgium
*
1corresponding author:[email protected]

Abstract

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In the Eocene to Oligocene transitional strata in Belgium, clay mineral associations vary in response to the climatic evolution and to tectonic pulses. Decreasing smectite to illite ratios and the systematic occurrence of illite-smectite irregular interlayers are consequences of a cooling climate. A marked increase in kaolinite content occurs just after a major unconformity formed at the Bartonian/Priabonian boundary and consequently is interpreted as resulting from the breakdown of uplifted saprolites.

Keywords

clay mineralsPaleogeneNorth Sea Basin
Type
Research Article
Information
Netherlands Journal of Geosciences , Volume 83 , Issue 3 , September 2004 , pp. 179 - 185
Copyright
Copyright © Stichting Netherlands Journal of Geosciences 2004

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