Theme 1: Supplementary GeoSites to Cret./Pal. boundary
Cretaceous - Paleogene boundary
Localities: Nye Kl�v, Kj�lby Gaard, Bjerre, Vokslev, Erslev, Dania, and Karlstrup
Description of supplementary GeoSites to Theme 1
Primary identification
| 1. GeoSites no.: GS
| 1-2
| 1-3
| 1-4
| 1-5
| 1-6
| 1-7
| 1-8
| | 2. National localities no.: NGI
| 14
| 14
| 14
| 29
| 20
| 34
| 159
| | 3. GeoSite names:
| Nye Kl�v, | Kj�lby 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:
Quarries.
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. & H�kansson, E., 1980: Thistedsrukturens geologi - et "neotektonisk" skoleeksempel. Dansk geol. Foren. �rsskrift for 1979.
H�kansson, 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. & �dum, H., 1923: Senon og Danien ved Voxlev. Danm. gedol. Unders., II. rk., 39.
J�rgensen, 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: Tr�k af Mors salthorstens udvikling. Dansk geol. foren. �rsskrift for 1981.
Pedersen, S.A. Schack & J�rgensen, Y., 1989: Erslev Molerfelt III. Danm. geol. Unders. Intern Rapport, 4.
Sj�rring, S., 1991: Ringe af flint. Varv 1991, 4.
�dum, H., 1926: Studier over Danienet i Jylland og p� 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. & Sj�rring, S., 1997: Det nordlige jylland. Geologisk set. Skov- og Naturstyrelsen, og Geografforlaget. 208 s.
and
Larsen, G. & Kronborg, C., 1994: Det mellemste Jylland. Geologisk set. Skov- og Naturstyrelsen, og Geografforlaget. 272 s.
24. Recommandation:
These localities are all GeoSites.
25. Comments:
...
26. Supplementary description:
...
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