Aachen Formation
| Aachen Formation | |
|---|---|
| Stratigraphic range: Santonian-Campanian ~ | |
| File:Aachener Kreide Hergenrath Aachen Member.jpg The Aachen Formation in Hergenrath | |
| Type | Geological formation |
| Underlies | Vaals Formation |
| Overlies | Limburg Group |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Coordinates | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Approximate paleocoordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| Region | Dutch Limburg, Belgian Limburg, North Rhine-Westphalia |
| Country | Belgium, Germany, Netherlands |
| Type section | |
| Named for | Aachen |
| Region | North Rhine-Westphalia |
| Country | Germany |
Aachen Formation (Netherlands) | |
The Aachen Formation (Dutch: Formatie van Aken, German: Aachen-Formation) is an Upper Cretaceous geologic formation in the southern Netherlands and northeastern Belgium and adjacent Germany.[1]
It is stratigraphically equivalent to the middle part of the Chalk Group of England, and named after the German city of Aachen.
Geography
[edit | edit source]The formation crops out in southern Belgian and Dutch Limburg and adjacent areas in Germany. The formation can also be found in the subsurface of West Flanders, where it forms an aquifer from which drinking water is won.
Geology
[edit | edit source]The Aachen Formation consists of glauconite-bearing sand. It was deposited during the Santonian and Campanian ages (85.8 to 70.6 million years ago) of the Cretaceous Period.
The formation rests unconformably on top of Carboniferous rocks of the Limburg Group, which are more than three times as old. Overlying the Aachen Formation is the Vaals Formation, equivalent to the upper part of the Chalk Group of England.
Fossil content
[edit | edit source]Among others, the following fossils have been reported from the formation:[1]
Corals
[edit | edit source]Flora
[edit | edit source]- Conifers
- Pollen
See also
[edit | edit source]References
[edit | edit source]- ^ a b Aachen Formation at Fossilworks.org
- ^ Leloux, 1999
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ a b c d Dijkstra, 1949
Bibliography
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- Upper Cretaceous Series of Europe
- Cretaceous Germany
- Cretaceous Netherlands
- Mesozoic Belgium
- Campanian Stage
- Santonian Stage
- Sandstone formations
- Shallow marine deposits
- Paleontology in Belgium
- Paleontology in the Netherlands
- Belgium–Germany border
- Belgium–Netherlands border
- Germany–Netherlands border
- Geologic formations of Germany
- Geologic formations of the Netherlands
- Geologic formations of Belgium