The Great Unconformity shows 550 million year old Tapeats Sandstone resting on 1.7 billion year old Vishnu Schist, in Blacktail Canyon along the Colorado River in Grand Canyon National Park, Arizona
Imagen Disponible en Alta Resolución, Descarga inmediata
small: 702 x 501 Pixels, medium: 1214 x 867 Pixels, large: 2051 x 1465 Pixels, x_large: 4156 x 2969 Pixels,