Aye Formation
| Aye Formation | |
|---|---|
Stratigraphic range: | |
| Type | Geological formation |
| Unit of | Condroz Group |
| Lithology | |
| Primary | Shales and siltstones |
| Other | Sandstone |
| Location | |
| Location | Dinant synclinorium, Ardennes, Belgium |
The Aye Formation is a geologic formation in the Dinant synclinorium, Ardennes, Belgium. It is part of the Condroz Group,[1] at the base of the middle Famennian (Upper Devonian). It is characterized by the presence of a conodont fossil Palmatolepis rhomboidea.[2]
It is composed mostly of greenish shales and siltstones with some lenses of sandstone. As it formed in an offshore position, in a subtidal wave-influenced environment, bioturbation features are significant. Cross-bedding structures also occur.[2]
The stratotype is located in the area of Houyet and Aye in Belgium.[2]
References
- ^ "Devonian—Descriptions". Devonian. National Commission for Stratigraphy Belgium. Retrieved 7 April 2017.
- ^ a b c "Aye Formation". Devonian. National Commission for Stratigraphy Belgium. Retrieved 7 April 2017.
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