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Møns Klint

Theme: Glacially dislocated cliffs  

Locality: Møns Klint
Description of a Danish GeoSite


Primary identification


1. GeoSite no.:
GS - 4-1.

2. National locality no.:
NGI - 175.

3. GeoSite name:
Møns Klint.

4. Location:
Denmark; isle of Møn.

5. Co-ordinates UTM:
System ED50 Zone 32, x=727243, y=6096798.

6. Type of locality:
Coastal cliffs.


Primary geological features


7. Main topic:
Glaciotectonic thrust complex.

8. Geo(morpho)logy:
Coastal cliff in which a complex of thrusted and deformed glacial till and drift interbeds, as well as subordinate lake deposits are sandwiched in between giant glacially thrusted and deformed blocks of Early Maastrichtian Chalk, which is again discordantly overlain by glacial drift. The glacial interbeds are from the Early and Mittel Weichselian and constitute the slip surfaces of the thrusted chalk blocks. The Weischelian deposits constitute seperate cliff exposures at Klintholm.
The cliff exposure and the hindland is divided into three sections according to the glaciotectonic situation. The Southern section with imbricated chalk blocks is built by ice push from Southeast, in the middle section giant chalk slabs are stacked, and in the northern section the chalk blocks have undergone complex deformation related to ice push from Northeast.
The chalk is coccolithic, friable, and has a porosity about 50%. The chalk containes a rich and generally well preserved fossil fauna of body and trace fossils. Sparse flint layers enhance the visibility of the bedding of the chalk.

9. Frame / context:
Tectonism, Sedimentology.

10. Chronostratigraphy:
Early Maastrichtian and Neogene.

11. Primary value:
Deformed, thrusted, imbricated, and stacked blocks og Lower Maastrichtian Chalk, which are interbedded with Glacial drift and till.

12. Comparative evaluation:
The Møns Klint is the most spectacular glaciotectonic example in Denmark, but is in its extraordinary tectonic quality comparable to Hanklit, Silstrup, Mors, and Fur (GS 3-1 to 3-4). The chalk thrust flakes expose the complete Lower Maastrichtian stratigraphy with a rich fauna. This succession is not exposed anywhere else in Denmark.
Spectacular glacial thrust flakes of chalk interbedded with glacial deposits.

13. Comparable GeoSites:
In Denmark: Hanklit, Silstrup, Mors, and Fur (GS 3-1 to 3-4).
Outside Denmark: Comparable chalk is exposed at Rügen.


Supplementary data in support of the locality


14. Delineation on a map:
...

15. Higth of the GeoSite:
Up to ca. 120 m above msl.

16. Area of the GeoSite:
8 km2.

17. Subordinate geological interests:
Paleontology, Startigraphy, Glacial climatic history, Denundation processes (see photo below), History of Geology (Historic basis for the discussion of the theory of glacial periods).

18. "Non"-geo interests:
Bothanics.
Ornithology.
Tourism.

19. References:
Heinberg, C., (Varv).
Surllyk, F. & Håkansson, E., (Guide til IAS ekskursion)
Mogensen, A.T., Fougt, H. & Hansen, C., 2000: Geologiske interesseområder. Storstrøms Amt.
Must be expanded!!!

20. Data sources, collections:
...

21. Illustrations:
Photo:

22. Proposers:
Dansk Geologisk Forening & Det Kongelige Danske Geografiske Selskab.

23. Description by:
Based on Damholt, T. & Heinberg, C., In: Geologisk Set, Den sjællandske øgruppe (in prep 2006).

24. Recommandation:
Møns Klint is a GeoSite.

25. Comments:
The Møns Klint proper and the Klintholm Klint are suggested to constitute óne GeoSite together.

26. Supplementary description: 

Denundation processes at the "Store Taler" section of the cliff ("Før" means before, "Nu" means now):

Store taler, Ole Bang, Camping Møns klint 

Photo: Ole Bang (Camping Moens Klint).
 
 
 
 

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Theme: Glacially dislocated coastal cliffs
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Last modified : Sunday 07. Jan. 2007 Erik Nygaard
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