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Connecting the Chalk Group of the Campine Basin to the dinoflagellate cyst biostratigraphy of the Campanian to Danian in borehole Meer (northern Belgium)*

Published online by Cambridge University Press:  24 March 2014

H. Slimani ,
S. Louwye ,
M. Dusar  and
D. Lagrou
H. Slimani*
Affiliation:
Laboratory of Geology and Remote Sensing, URAC 46, University Mohammed V-Agdal, Avenue Ibn Batouta, P.B. 703, 10106 Rabat-Agdal, Morocco
S. Louwye
Affiliation:
Research Unit Palaeontology, Ghent University, Krijgslaan 281/S8, B-9000 Ghent, Belgium
M. Dusar
Affiliation:
Royal Belgian Institute of Natural Sciences, Geological Survey of Belgium, Jennerstraat 13, B-1000 Brussels, Belgium
D. Lagrou
Affiliation:
Flemish Institute for Technological Research(VITO), Boeretang 200, B-2400 Mol, Belgium
*
*Email: [email protected], [email protected]

Abstract

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A palynological study of the Chalk Group (Campanian-Danian) in the Meer borehole (northern Belgium), which penetrated the thickest succession known in the Campine Basin, has revealed diverse, well-preserved organic-walled dinoflagellate cyst assemblages. The succession contains numerous chronostratigraphically significant dinocyst events, which are based mainly on the highest consistent occurrences of index species. At least 35 bio-events have enabled a subdivision into nine intervals, at stage or substage level, within the Campanian to Danian interval, as based on comparison with coeval assemblages elsewhere in northwest Europe, inclusive of stratotypes of stages and stage boundaries. Bio-events allow correlation of the section studied with the Campanian Exochosphaeridium? masureae, Areoligera coronata and Samlandia mayi zones, the Maastrichtian Pervosphaeridium tubuloaculeatum, Deflandrea galeata and Hystrichostrogylon coninckii zones, and the Danian Damassadinium californicum Zone. In addition, a correlation with other zonal schemes for the southern North Sea Basin and with conventional northwest European belemnite zones is presented. Comparisons with Boreal and Tethyan realms confirm that most bio-events may also be useful for interregional and global correlation. The Campanian-Danian dinocyst biostratigraphy of the Meer borehole is put alongside geophysical well logs and an ecozonation, in order to check the validity of lithostratigraphical correlations across the Campine Basin. This first, detailed correlation attempt shows that sensitivities to facies change associated with differences in accommodation space and sediment supply appear to be at the base of slight, yet consistent, shifts between the local lithological succession and the standard lithostratigraphical scheme of the Maastricht type area.

Keywords

Upper CretaceousDanianorganic-walled dinoflagellate cystsbiostratigraphylithostratigraphysouthern North Sea Basincorrelation
Type
Research Article
Information
Netherlands Journal of Geosciences , Volume 90 , Issue 2-3 , November 2011 , pp. 129 - 164
Copyright
Copyright © Stichting Netherlands Journal of Geosciences 2011

Footnotes

*

In: Jagt, J.W.M., Jagt-Yazykova, E.A. & Schins, W.J.H. (eds): A tribute to the late Felder brothers – pioneers of Limburg geology and prehistoric archaeology.

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