DescriptionTafoni at Twyfelfontein (Namibia).jpg Deutsch: Tafoni in rotem „Karoo“-Sandstein (Ecca-Gruppe, Permokarbon) des Huab-Beckens, aufgeschlossen...
DescriptionTwyfelfontein-Roches (3).jpg Français : Formation rocheuse à Twyfelfontein (Namibie). Date 12 November 2016, 11:15:49 Source Own work Author...
DescriptionSandstone erosion.jpg English: Wind and water eroded sandstone at Twyfelfontein, Namibia. Diameter of one 'pit' is about 10 cm. Français : Grès...
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