Age and depositional environment of the Kuhfeld Beds (Lower Cretaceous) in the Alstatte Embayment (W Germany, E Netherlands)
Abstract
Major parts of the Lower Cretaceous Kuhfeld Beds as present in the Alstätte Embayment, Dutch-German border area, have a marine origin and were not exclusively deposited in a limnic-terrestrial setting as previously thought. For the first time, direct fossil evidence is available. This dates the base of the formation as transitional Ryazanian- Valanginian and indicates a late Early-Late Hauterivian age higher in the formation.
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