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Photo ID: iwjg1hSubject: Surface ProcessesDescription
Boulders; Clastic Sediments; Cobbles; Colorado River; Erosion Environment; Erosion Features; Fluvial Environment; Fluvial Features; Geomorphology; Grand Canyon; Mass Movement; Mass Wasting; Rivers; Sediments; Water ErosionThese boulders, temporarily resting in the bed of the Colorado River near Blacktail Canyon, a tributary of Arizona's Grand Canyon, represent many of the rock layers that make up the walls of the canyon.
PhotographerLocation
Michael Collier

Credit Line: Copyright Michael Collier
North America; United States; Arizona; Blacktail Canyon
Photo Quality | Large 

Photo ID: ixvu1aSubject: Invertebrate FossilsDescription
Cephalopoda; Fossilization; Fossils; Mineralization; Mississippian; Mollusca; Nautiloidea; Nautiloids; Redwall LimestoneIn August of 1999 this Nautiloid fossil was photographed in a Redwall limestone boulder found in Arizona's Blacktail Canyon.

View Geological Time Scale for this image.

PhotographerLocation
Michael Collier

Credit Line: Copyright Michael Collier
North America; United States; Arizona; Blacktail Canyon
Photo Quality | Large 

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