Английская Википедия:Aroley Formation
Шаблон:Infobox rockunit The Couches de l’Aroley (short: Aroley Formation) are a sedimentary formation deposited during the Early Cretaceous (Barremian to Aptian). They consist of calcitic schists with dolomite clasts interbedded with finegrained conglomerates. The whole sequence is about 100 m thick.[1]
The Couches de l’Aroley are the lowest of the three post-rift sequences deposited in the Valais ocean. It overlies syn-rift sequences of the Brèches du Grand Fond Group.[2]
The Aroley Formation can be found within the following nappes:
The type locality is the Massif de la Pierre Avoi, in Saxon, Valais, Switzerland. The formation is named after a "Plan Aroley" which lies below the Pierre Avoi. It was first described by Rudolf Trümpy 1952.[3]
The Couches de l’Aroley can be correlated with the Klus Formation and the Tristel Formation found in eastern Switzerland, the Engadin window and the Tauern window.[2][4]
References
- Английская Википедия
- Geologic formations of France
- Geologic formations of Switzerland
- Lower Cretaceous Series of Europe
- Cretaceous France
- Cretaceous Switzerland
- Barremian Stage
- Geology of the Alps
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