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Differential erosion, Utah.
Differential weathering and erosion: sandstone overlying shale, SE Utah. (090318-12)
Download ImagePetroglyphs on sandstone.
Petroglyphs on sandstone coated with desert varnish. Newspaper Rock, SE Utah. (090317-29)
Download ImageSandstone arch, spire, and window, Utah
Sandstone arch, spire, and window, Turret Arch, Arches National Park, Utah. (090316-19)
Download ImageNormal faults in sandstone (vertical)
Offset sandstone blocks on normal faults, just outside gate to Arches National Park, Utah (090317-22)
Download ImageCretaceous sandstone and shale
Cretaceous sandstone and shale, central Utah. (090315-7)
Download ImageNormal faults in sandstone, Utah
Offset sandstone blocks on normal faults, just outside gate to Arches National Park, Utah (090317-18)
Download ImageDifferential Erosion, Arches, Utah
Sandstone spire, capped by more resistant sandstone, Arches National Park, Utah. (090316-97)
Download ImageDepositional contact, Utah
Depositional contact and erosional windows, Jurassic Entrada Fm (red) overlying Jurassic Navajo Sandstone (white), Arches National Park, Utah. (090316-115)
Download ImageCoal seam, Utah
Narrow (about 1m thick) seam of anthracite coal within Cretaceous sandstone, central Utah. (090315-29)
Download ImageCoal seam, Utah (vertical)
Narrow anthracite coal seam (about 1m thick) in Cretaceous rock, Utah. (090315-27)
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Bonneville Shorelines, Utah.
Aerial view of Bonneville Shorelines, Promontory Mtns., Great Salt Lake, Utah. These Shorelines formed during the Pleistocene Epoch, when the present-day Great Salt Lake was the much larger Lake Bonneville. (090121-7)
Download ImageBonneville Shorelines, Utah.
Aerial view of Bonneville Shorelines, Promontory Mtns., Great Salt Lake, Utah. These Shorelines formed during the Pleistocene Epoch, when the present-day Great Salt Lake was the much larger Lake Bonneville. (090121-8)
Download ImageFog over Great Salt Lake, Utah.
Aerial view of Fog over Great Salt Lake, Utah. View is over Antelope Island to Stansbury Island in the Great Salt Lake, Utah. (090121-9)
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Series: water exploding out blowhole (pan)
Blowhole near Yachats, Oregon Coast. Incoming wave funnels up a channel eroded along a fracture and explodes upwards on reaching the end.
Download Imagewave refraction at headland (pan)
Aerial view of wave refraction at headland, California. Arrows are perpendicular to wave fronts. (CE-06060115-33)
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Cape Blanco, Oregon
Aerial view of Cape Blanco, Oregon looking northeastward. The flat surface beneath the lighthouse is the ~80,000 year-old Cape Blanco Terrace, probably equivalent to the Whiskey Run Terrace at Shore Acres; the flat area on the right side of the photo is the higher Pioneer Terrace, which formed about 105,000 years ago. (377-26)
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