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Porphyroclast in deformed marble
Porphyroclast in deformed marble –photo is approx 50 cm across. (5D-3152)
Download ImageWindblown sand and mudcracks (vertical)
Aeolian sand and mudcracks among sand dunes in Death Valley National Park, California (5D-3098)
Download ImageWindblown sand and mudcracks, Death Valley, CA
Aeolian sand and mudcracks among sand dunes in Death Valley National Park, California (5D-3086)
Download ImageWindblown sand and mudcracks, Death Valley, CA
Aeolian sand and mudcracks among sand dunes in Death Valley National Park, California (5D-3084)
Download ImageContemporaneous brittle and ductile deformation
Contemporaneous brittle and ductile deformation in deformed marble. (5D-2940)
Download ImagePorphyroclasts in marble mylonite
Pegmatite porphyroclasts in marble mylonite (5D-2920)
Download ImagePorphyroclasts in marble mylonite
Pegmatite porphyroclasts in marble mylonite (5D-2919)
Download ImageRecumbent isoclinal fold in shear zone
Recumbent isoclinal fold in marble shear zone (5D-2918)
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Monocline, SE Utah
Aerial view of the San Rafael Swell, a monocline on the Colorado Plateau in SE Utah. (101028-60)
Download ImagePahoehoe lava and cinder cones, Idaho
Pahoehoe lava and cinder cones in Craters of the Moon National Monument, Idaho (100628-63)
Download ImageCinders and cinder cones, Idaho
Cinders and cinder cones in Craters of the Moon National Monument, Idaho. (100628-61)
Download ImageBasin and Range
Aerial view of the Basin and Range Province, Nevada (SrF-01. 4512-36)
Download ImageNonconformity: sandstone on granite, CO
Nonconformity between Cambrian Sawatch Sandstone and underlying Precambrian Pikes Peak Granite, Manitou Springs, Colorado (150323-22)
Download ImageGrand Mesa and Grand Valley, Colorado
View of Grand Mesa, Colorado from Mt. Garfield. The upper most rock is Miocene basalt over Eocene and Cretaceous sandstone and shale (180831-51)
Download ImageMiocene basalt capping Grand Mesa, Colorado
Miocene basalt capping Grand Mesa, Colorado. Beneath the basalt lies a sequence of Eocene Green River Fm above Cretaceous Mesa Verde Group and Mancos Shale. (180901-50)
Download ImageGrand Mesa, Colorado (Pan)
Panoramic view of Grand Mesa, Colorado. It consists of Miocene basalt overlying Eocene and Cretaceous sandstone and shale (180831-93)
Download ImagePikes Peak and hogback of Lyons Sandstone, Colorado
Pikes Peak and hogback of Lyons Sandstone, near the Garden of the Gods City Park, Colorado (150323-43)
Download ImageHogback, Garden of the Gods S. Park, Colorado
Hogbacks of Permian Lyons Sandstone, Garden of the Gods City Park, Colorado (150323-37)
Download ImageHogbacks, Roxborough State Park, Colorado
Hogbacks of the Pennsylvanian Fountain Formation (red) and Permian Lyons Sandstone (white) and intervening strike valley, Roxborough State Park, Colorado (131025-52)
Download ImageHogbacks, Roxborough State Park, COlorado (vertical)
Hogbacks of the Pennsylvanian Fountain Formation (red) and Permian Lyons Sandstone (white) and intervening strike valley, Roxborough State Park, Colorado (131025-47)
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