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Theme 1: Supplementary GeoSites to Cret./Pal. boundary

Cretaceous - Paleogene boundary

Localities: Nye Kløv, Kjølby Gaard, Bjerre, Vokslev, Erslev, Dania, and Karlstrup
Description of supplementary GeoSites to Theme 1

Primary identification

1. GeoSites no.:                 GS








2. National localities no.: NGI 








3. GeoSite names:  Nye Kløv,  Kjølby Gaard,  Bjerre,  Vokslev,  Erslev,  Dania,  Karlstrup

4. Location:
Denmark; Northern Jutland and Eastern Zealand.

5. Co-ordinates UTM:
System ED50 Zone 32, x=, y=.

6. Type of locality:

Primary geological features

7. Main topic:
The boundary succession in a variety of facies (porer in bryozoan content than in Stevns klint, GS 1-1).

8. Geo(morpho)logy:
The exposures are relatively smaller than the clif of Stevns, but draw interest as they illustrate the boundary in a variety of facies combinations, and because the facies generally is of a more purely pelagic origin than at Stevns klint (GS 1-1), and seemingly with less hiatus.

9. Frame / context:
The second largest mass extinction in Phanerozoic life history took place at the Cretaceous–Paleogene boundary, marking the end of the Mesozoic era.

10. Chronostratigraphy:
Late Maastrichtian – Early Danian.

11. Primary value:
In the North Sea the Cretaceous - Palaeogene boundary marks the change from the best reservoir facies (Maastrichtian chalk) to a more diagenetically altered chalk with poorer reservoir characteristics. The boundary localities serve as outcrop analogues for reservoir studies.

12. Comparative evaluation:
The succession in these localities generally represent more continuous sedimantation than in the Clliff of Stevns (GS 1-1).

13. Comparable GeoSites:
In Denmark: Stevns Klint (GS 1-1).

Supplementary data in support of the locality

14. Delineation on a map:

15. Higth of the GeoSites:
Quarry walls are in between 1 and 15 m high.

16. Areas of the GeoSites:
Not applicable.

17. Subordinate geological interests:
Educational value.

18. "Non"-geo interests:
Leasure and holiday resorts.

19. References:
Birkelund, T. & Bromley, R.G., 1979: Cretaceous - Tertiary boundary events. Symp. Univ. of Copenhagen (More contributions).
Hansen, J.M. & Håkansson, E., 1980: Thistedsrukturens geologi - et "neotektonisk" skoleeksempel. Dansk geol. Foren. Årsskrift for 1979.
Håkansson, E. & Hansen, J.M., 1979: Guide to Maastrichtian and Danian strata in Jylland. In: Birkelund, T. & Bromley, R.G. (eds): Cretaceous - Tertiary boundary events. Symp. Univ. of Copenhagen.
Jessen, A. & Ødum, H., 1923: Senon og Danien ved Voxlev. Danm. gedol. Unders., II. rk., 39.
Jørgensen, N.O., 1975: Mg/Sr distribution and diagenesis of Maastrichtian white chalk and Danian bryozoan limestone from Jylland, Denmark. Bull. geol. Soc. Denmark. 24. 299-325.
Larsen, G. & baumann, J., 1982: Træk af Mors salthorstens udvikling. Dansk geol. foren. Årsskrift for 1981.
Pedersen, S.A. Schack & Jørgensen, Y., 1989: Erslev Molerfelt III. Danm. geol. Unders. Intern Rapport, 4.
Sjørring, S., 1991: Ringe af flint. Varv 1991, 4.
Ødum, H., 1926: Studier over Danienet i Jylland og på Fyn. Danm. geol. Unders., II. rk., 45.

20. Data sources, collections:
Main collections are at The Natural History Museum of Denmark (Geological Museum), University of Copenhagen.

21. Illustrations:
Illustrations will be included as they become available.

22. Proposers:
Dansk Geologisk Forening and Kongelige Danske Geografiske Selskab.

23. Description by:
Based on Andersen, S. & Sjørring, S., 1997: Det nordlige jylland. Geologisk set. Skov- og Naturstyrelsen, og Geografforlaget. 208 s.
Larsen, G. & Kronborg, C., 1994: Det mellemste Jylland. Geologisk set. Skov- og Naturstyrelsen, og Geografforlaget. 272 s.

24. Recommandation:
These localities are all GeoSites.


26. Supplementary description:

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Last modified : Søndag 17. Dec., 2006
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