Aachen Formation

Aachen Formation
Stratigraphic range: Santonian-Campanian
~85–71 Ma

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Aachen Formation; Stratigraphic range: Santonian-Campanian; ~85–71 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	The Aachen Formation in Hergenrath
Type	Geological formation
Underlies
Overlies
Lithology
Primary	Sandstone
Location
Coordinates	50°48′N 5°54′E / 50.8°N 5.9°ECoordinates: 50°48′N 5°54′E / 50.8°N 5.9°E
Approximate paleocoordinates	40°48′N 7°18′E / 40.8°N 7.3°E
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[]

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[]

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 , which are more than three times as old. Overlying the Aachen Formation is the , equivalent to the upper part of the Chalk Group of England.

Fossil content[]

Among others, the following fossils have been reported from the formation:^[1]

Corals[]

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Flora[]

Aachenosaurus multidens^[3]

Pollen

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References[]

^ Jump up to: ^a ^b Aachen Formation at Fossilworks.org
^ Leloux, 1999
^ Smets, G. (1888). "Aachenosaurus multidens". Bulletin de la Société belge de géologie, de paléontologie et d'hydrologie. Bruxelles: The society. 12 (2): 300 – via Biodiversity Heritage Library.
^ Jump up to: ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Dijkstra, 1949
^ Dijkstra, 1961

Bibliography[]

Leloux, J. 1999. Numerical distribution of Santonian to Danian corals (Scleractinia, Octocorallia) of southern Limburg, the Netherlands. 78. 191–195.
Batten, D. J. 1988. Revision of S J Dijkstra's Late Cretaceous megaspore and other plant microfossils from Limburg, the Netherlands. In J. W. J. Van Amerom (ed.). 41. 1–55.
Dijkstra, S. J. 1961. On megaspores, Charophyta fruits and some other small fossils from the Cretaceous. 8. 8–18.
Dijkstra, S. J. 1949. Megaspores and some other fossils from the Aachenian (Senonian) in South Limburg, Netherlands. , Niewe Serie 3. 19–32.

[FW-1] Jump up to: ^a ^b Aachen Formation at Fossilworks.org

[Leloux1999-2] Leloux, 1999

[3] Smets, G. (1888). "Aachenosaurus multidens". Bulletin de la Société belge de géologie, de paléontologie et d'hydrologie. Bruxelles: The society. 12 (2): 300 – via Biodiversity Heritage Library.

[Dijkstra1949-4] Jump up to: ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Dijkstra, 1949

[Dijkstra1961-5] Dijkstra, 1961

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