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Flat-lying sed rock, Utah (vertical)
Near-horizontal Permian Cedar Mesa Sandstone and overlying Triassic-Jurassic strata, Canyonlands National Park, SE Utah. North Six-shooter peka punctuates the skyline (090320-34)
Download ImageFlat-lying sedimentary rock, Utah
Near-horizontal Permian Cedar Mesa Sandstone and overlying Triassic-Jurassic strata, Canyonlands National Park, SE Utah. North Six-shooter peka punctuates the skyline (090320-34)
Download ImageDuctile shear zone in granitic rock
Ductile shear zone in granitic rock showing top-right sense of shear. The green color comes from the mineral chlorite. (4511-59)
Download ImageBadwater Turtleback, Death Valley, California
North end of Badwater Turtleback, Death Valley National Park, California. A wineglass canyon lies on the right side of the photo. (2K7DV-160)
Download ImageBadwater Turtleback, Death Valley, CA (Pan)
Panorama of Badwater Turtleback, Death Valley National Park, California. A wineglass canyon, in the center of the photo, is eroded behind the frontal fault. (2K7DV-159pan)
Download ImageNW wall, McDermitt Caldera, OR-NV (Pan)
Panorama view of northwest edge of McDermitt Caldera, Oregon-Nevada (McDermittPan)
Download ImageFlow-banded tuff, McDermitt Caldera, OR
Flow-banding in rhyolite welded tuff, McDermitt Caldera, SE Oregon (200814-69)
Download ImageFlow-banded tuff, SE Oregon (vertical)
Flow-banding in rhyolite welded tuff, McDermitt Caldera, SE Oregon (200814-68)
Download ImageIsoclinal fold in welded tuff, SE OR
Isoclinal fold in rhyolitic welded tuff defined by flow-banding, McDermitt Caldera, SE Oregon (200814-33)
Download ImageAbandoned mercury mine workings, SE OR.
Abandoned mercury mine workings along the northeast wall of the McDermitt Caldera, southeast Oregon. Post-caldera lake beds form the light-colored stratified rocks near the dump poles; Inflow welded tuff forms the brown rock in the foreground. (200814-24)
Download ImageMiocene Lake bed deposits, SE Oregon
Miocene Lake bed deposits filling McDermitt Caldera SE Oregon (200814-8)
Download ImageFolded calcite vein in cleaved limestone
Folded calcite vein and cleavage in limestone. mm scale below. (200423-52)
Download ImageCleavage and Van Hise Rock, WI (vertical)
Slaty cleavage in phyllite (formerly mudstone) of Baraboo Quartzite at Van HIse Rock, Baraboo, Wisconsin. Note how the quartzite (on the right) does not show cleavage. (4511-48) metasedimentary
Download Image4511-45
Axial planar cleavage in near-recumbently folded anticline of Cambrian sandstone and shale. Bare Mountain, Nevada. (4511-45)
Download ImageFolded sandstone bed in cleaved shale
Folded sandstone bed from dissolution along cleavage in shale. (8UW86-125)
Download ImageMafic dike cutting granitic rock, Wisconsin
Cross-cutting relations: granitic rock (Proterozoic tonalite) cut by quartz vein (lower right) and then cut by a mafic dike (note inclusion of granitic rock in dike and chilled margin along intrusive contact). All later broken by a fracture. near Chippewa Falls, Wisconsin. (20Wis-4)
Download ImagePrecambrian Augen Gneiss, Wisconsin
Proterozoic (PreCambrian) Augen Gneiss with large pink feldspar crystals, Wisconsin (20MiscBR-7)
Download ImageProterozoic granitic rock, Wisconsin
Proterozoic granitic rock (trondhjemite), near Chippewa Falls, Wisconsin (20Wis-5)
Download ImageNonconformity: Cambrian-pC. Wisconsin
Great unconformity: the nonconformity near Chippewa Falls, Wisconsin of the Cambrian Mt. Simon Sandstone over Precambrian granitic rock (20Wis-1)
Download ImageCrossbedded Cambrian sandstone, Wisconsin
Crossbedding in Cambrian Mt. Simon Sandstone, Eau Claire, Wisconsin (20Pz-1)
Download ImageSpring thaw, Lake Superior, Wisconsin
Break-up of pack ice on Lake Superior during spring thaw, Wisconsin (20Misc-9)
Download Image
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