Ripples on a vertical bedding plane, Devonian slates and sandstone, Kaiserstuhl, Ahrtal, Germany
PhotoID585
Ripples on a vertical bedding plane, Devonian slates and sandstone, Kaiserstuhl, Ahrtal, Germany
PhotoID585
Photograph: Cees Passchier
Ripples on a vertical bedding plane, Devonian slates and sandstone, Kaiserstuhl, Ahrtal, Germany
PhotoID585
Ripples on a vertical bedding plane, Devonian slates and sandstone, Kaiserstuhl, Ahrtal, Germany
PhotoID585
Photograph: Cees Passchier