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Metaconglomerate
Metamorphic conglomerate, with rounded clasts of gneiss. Green color is from the mineral chlorite. (150218-43)
Download ImageMetaconglomerate (vertical)
Metamorphic conglomerate, with rounded clasts of gneiss. Green color is from the mineral chlorite. (150218-36)
Download ImageMetaconglomerate
Metamorphic conglomerate, with rounded clasts of gneiss. Green color is from the mineral chlorite. (150218-23)
Download ImageCalcite crystal reacting with HCl
The “fizz test”: calcite crystal reacting with a weak solution of hydrochloric acid (201122-11)
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Metamorphic rocks with shale and mica
Metamorphic rocks showing the progressive increase in size of mica during progressive metamorphism of shale (201119-12e)
Download ImageLimestone reacting with HCl
The “fizz test”: Limestone sample reacting with a weak solution of hydrochloric acid (201111-17)
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Sandstone sample: grains and cement (pan)
Close-up views of quartz sandstone and cement. Photo on right is enlarged approx 3x (201120-10i)
Download ImageGlaciated peaks of Colorado
Aerial view of part of Rocky Mountain National Park, Colorado, looking north. From left to right, the peaks are Chiefs Head, Pagoda, Longs Peak, Meeker. (201101-36)
Download ImageRocky Mountain National Park, Colorado
Aerial view of Colorado’s Front Range in Rocky Mountain National Park, Colorado, lookiong north. Longs Peak forms the high point on the right. (201101-34)
Download ImageFolded rock of southern Appalachian Mountains, Alabama
Aerial view of folded Paleozoic rock (syncline in lower left) in southern Valley and Ridge Province of the southern Appalachians near Gadsden, Alabama. (201101-7)
Download ImageSouthern Appalachians near Gadsden, Alabama
Aerial view of meandering Coosa River and Gadsden, Alabama in southern Valley and Ridge Province of the southern Appalachians. Ridges are underlain by folded Paleozoic rocks (201101-6)
Download ImageSouthern Appalachians near Gadsden, Alabama
Aerial view of meandering Coosa River and Gadsden, Alabama in southern Valley and Ridge Province of the southern Appalachians. Ridges are made of folded Paleozoic rocks (201101-5)
Download ImageSand Hills, Nebraska (vertical)
Aerial view northward over stabilized dunes, Sand Hills, Nebraska (201027-77)
Download ImageSand Hills, Nebraska
Aerial view northward over stabilized dunes, Sand Hills, Nebraska (201027-76)
Download ImageMeandering Channels, Bighorn River, Wyoming
Aerial view of meandering channels and floodplain, Bighorn River, Wyoming (201027-75)
Download ImageBighorn Canyon, Wyoming-Montana
Aerial view of Bighorn Canyon, an incised meandering river, Wyoming-Montana (201027-73)
Download ImageStructural Dome, Montana
Aerial view of Limestone Butte, a structural Dome that folded over the top of a laccolith, southern Montana (201027-70)
Download ImageStructural Dome, Montana
Aerial view of Limestone Butte, a structural Dome that folded over the top of a laccolith, southern Montana (201027-69)
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