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Navajo Mountain Laccolith, Arizona

Aerial view of Navajo Mountain Laccolith, Arizona (220326-77) dome
Download ImageSoft-sediment deformation in ash (vertical)

Soft-sediment deformation in volcanic ash –interpreted as a seismite, related to earthquake activity. SE California (220323-13)
Download ImageSoft-sediment deformation in ash (vertical)

Soft-sediment deformation in volcanic ash –interpreted as a seismite, related to earthquake activity. SE California (220323-12)
Download ImageFlame structure in volcanic ash

Flame structure in volcanic ash, SE California. The soft-sediment deformation here is interpreted as related to earthquake activity. (220323-6). seismites
Download ImageFlame structure in volcanic ash

Flame structure in volcanic ash, SE California. The soft-sediment deformation here is interpreted as related to earthquake activity. (220323-4). seismites
Download ImageBoudinage of pegmatite in schist (vertical)

Boudinage of pegmatite in schist, SE California (220322-31)
Download ImageBoudinage of pegmatite in schist (vertical)

Boudinage of pegmatite in schist, SE California (220322-30)
Download ImagePegmatite dike cutting amphibolite

Pegmatite dike cutting amphibolite. Note that the dike has coarsely crystalline margins, suggestive of intrusion during at least two events. Death Valley, California (220322-18)
Download ImagePegmatite dike cutting amphibolite

Pegmatite dike cutting amphibolite. Note that the dike has coarsely crystalline margins, suggestive of intrusion during at least two events. Death Valley, California (220322-16)
Download ImageAngular unconformity, SE California

Angular unconformity between alluvial fan gravels above deformed Miocene-Pliocene lake bed deposits, SE California (220319-38)
Download ImageAngular unconformity, SE California

Angular unconformity between alluvial fan gravels above deformed Miocene-Pliocene lake bed deposits, SE California (220319-34)
Download ImageAngular unconformity, SE Cal (vertical)

Angular unconformity between alluvial fan gravels above deformed Miocene-Pliocene lake bed deposits, SE California (220319-31)
Download ImageUpright syncline beneath unconformity

Upright syncline in Miocene-Pliocene lake beds beneath angular unconformity, SE California (220319-25)
Download ImageRecumbent isoclinal fold in sandstone

Recumbent isoclinal fold in sandstone and shale (220319-17)
Download ImageEroded Tecopa Lake beds, SE California

Eroded Tecopa Lake beds, SE California (220318-60)
Download ImageLow lake levels at Lake Mead, NV-AZ

Low lake levels at Lake Mead as shown by the “bathtub ring” of carbonate and salt deposits. View from Hoover Dam, Arizona-Nevada (220317-69)
Download ImageLow lake levels at Lake Mead, (Vertical)

Low lake levels at Lake Mead as shown by the “bathtub ring” of carbonate and salt deposits. View from Hoover Dam, Arizona-Nevada (220317-35)
Download ImageLow lake levels at Lake Mead, (Vertical)

Low lake levels at Lake Mead as shown by the “bathtub ring” of carbonate and salt deposits. View from Hoover Dam, Arizona-Nevada (220317-29)
Download Image
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