Filters: Types: OGC WFS Layer (X) > Tags: {"type":"Geology","name":"metamorphic rocks"} (X) > partyWithName: George Billingsley (X)
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Aerial view north toward thinning of Tapeats Sandstone during Cambrian deposition over small schist highland "island," northeast river bank, river mile 119.7.
Paleoproterozoic pegmatite and granite dikes in Vishnu Schist (photograph EM08), north side of river mile 82.4.
River-polished gneiss and schist in Lower Granite Gorge, south bank of river mile 234.6.
White pegmatite intrusions into Vishnu Schist in lower Ruby Canyon (photograph EM30, EM32), just south of river mile 105.2.
Aerial view southwest down Crystal Creek canyon toward Vishnu Schist below horizontal cliff of Tapeats Sandstone, about 2 miles northeast of river mile 98.8.
View downriver toward Crystal Creek delta and pegmatite dikes in Vishnu Schist on north side of river, below Crystal Rapids, from river mile 98.7.
View northwest and downriver toward granite and gneiss walls of Lower Granite Gorge from about river mile 236.5.
River-polished gneiss in Lower Granite Gorge, south side of river mile 235.5.
Aerial view southeast toward South Kaibab Trail at The Tipoff (upper right of photograph), south of river mile 88.3. Bass Formation and overlying red Hakatai Shale overlie Precambrian granite and pegmatite dikes in black Vishnu Schist. Bright Angel Creek and delta at lower center of photograph.
Pegmatite dikes in schist in Lower Granite Gorge, south bank between river miles 235.0 and 236.0.
View northwest and downriver below Crystal Rapids, from river mile 99.2, toward granite and pegmatite dikes in Vishnu Schist. Great Unconformity at base of brown cliff of Cambrian Tapeats Sandstone. Redwall Limestone forms Scorpion Ridge at skyline.
River-polished Vishnu Schist (photograph EM09), south side of river mile 82.4.
View southwest and downriver toward granite rocks east of Hurricane Fault, overlain by Tapeats Sandstone, from river mile 190.5.
River-polished gneiss and schist in Lower Granite Gorge, south bank of river mile 233.7.
Aerial view northwest toward granite bedrock in flooded Bedrock Rapids, river mile 131.1.
View downriver toward entrance of Granite Narrows, exposing Vishnu Schist in narrowest place of Colorado River in Grand Canyon, 76 feet wide, river mile 135.6.
River-polished Vishnu Schist, east bank of river mile 114.1.
View west and downriver toward red granite on south bank of river mile 237.2.
Aerial view southeast toward granite and schist overlain by Cambrian strata on south side of Diamond Creek canyon, about 3 miles east of river mile 226.0.
Photograph showing black schist of small Precambrian “island” during the Cambrian sea encroachment, right bank of river mile 212.5.
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