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Folded foliation in Devonian slates, Malpas, Spanish Pyrenees. The foliation is Variscan in age, the folds are probably formed during the Pyrenean (Late Cretaceous to earliest Miocene) deformation in the Pyrenees
PhotoID578

Folded foliation in Devonian slates, Malpas, Spanish Pyrenees. The foliation is Variscan in age, the folds are probably formed during the Pyrenean (Late Cretaceous to earliest Miocene) deformation in the Pyrenees
PhotoID578

Photograph: Cees Passchier