Wikimedi'Òc

Weathered sedimentary rock in Dharamsala.jpg - Co9man

Kayenta Formation (Lower Jurassic; Red Canyon, Colorado National Monument, Colorado, USA) 3 (23696463280).jpg - Ser Amantio di Nicolao

Weathered claystones (Pekin Formation, Upper Triassic; Boren Clay Pit, Gulf, North Carolina, USA) 1.jpg - Ser Amantio di Nicolao