Топ-100 ⓘ Coconino Sandstone is a geologic formation named after its e
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ⓘ Coconino Sandstone is a geologic formation named after its exposure in Coconino County, Arizona. This formation spreads across the Colorado Plateau province of ..




Coconino Sandstone
                                     

ⓘ Coconino Sandstone

Coconino Sandstone is a geologic formation named after its exposure in Coconino County, Arizona. This formation spreads across the Colorado Plateau province of the United States, including northern Arizona, northwest Colorado, Nevada, and Utah.

This rock formation is particularly prominent in the Grand Canyon, where it is visible as a prominent white cliff-forming layer. The thickness of the formation varies due to regional structural features; in the Grand Canyon area it is only 65 ft thick in the west, thickens to over 600 ft in the middle and then thins to 57 ft in the east. Either the Kaibab Limestone or Toroweap Formation overlies the Coconino Sandstone. The Coconino Sandstone is typically buff to white in color. It consists primarily of fine well-sorted quartz grains, with minor amounts of potassium feldspar grains deposited by eolian processes wind-deposited approximately 275 million years ago. Several structural features such as ripple marks, sand dune deposits, rain patches, slump marks, and fossil tracks are not only well preserved within the formation, but also contribute evidence of its eolian origin.

Lechatelierite silica glass, as well as coesite and stishovite high pressure forms of SiO 2 were formed during the impact of a meteorite into the Coconino Sandstone at Barringer Crater in Arizona.

                                     
  • between the brighter colored units of the Kaibab Limestone above, and Coconino Sandstone below. It is a prominent unit in Grand Canyon, Arizona, USA, found
  • composed of the Coconino Sandstone at 7, 012 feet 2, 137 m a similar elevation to the North Rim, Grand Canyon, Kaibab Plateau, and the Coconino is geologic
  • The sequence of units below the white Coconino Sandstone prominence of Isis Temple are: G - Coconino Sandstone - white prominence white - ridgeline to right
  • American continent and is found in northwest Arizona layered between Coconino Sandstone and the Kaibab Formation. The Toroweap is mostly from the Grand Canyon
  • buff to white colored, frequently cross - bedded Permian Coconino Sandstone and the red sandstones of the Permian Schnebly Hill Formation. Unlike all the
  • characterized by high cliffs of limestone and sandstone namely the Kaibab Limestone and Coconino Sandstone cliffs. The escarpment was created by erosion
  • the tan or white, cross - bedded fossil sand - dunes of the Coconino Sandstone The Coconino is a cliff - forming unit. The Hermit Formation and Supai Group
  • Toroweap Formation and Coconino Sandstone also the Hermit Formation and Supai Group at lower elevations the Esplanade Sandstone member of The Esplanade
  • contorted sandstones sabkha deposits of Toroweap Formation interfinger with and are replaced by cross - bedded sandstones of the Coconino Sandstone As a
  • Formation and Coconino Sandstone The Kaibab formation also forms the rim of the Grand Canyon. Crossbedding is present in the Coconino Sandstone The Walnut
                                     
  • directly below upper - vertical - cliff of Esplanade Sandstone - below Hermit Formation and white Coconino Sandstone prominence Isis Temple, with complete Supai
  • Aquia Creek Sandstone in Virginia Bayfield group: in northern Wisconsin Coconino Sandstone in the Colorado Plateau Crab Orchard Sandstone Cumberland
  • footprints Pterosaur Tetrapod Trace fossil Trilobite Chuckanut Formation Coconino Sandstone Ipolytarnoc Minas Basin fish - fin trackway Valentia Island Protichnites
  • Steven Austin has proposed that fossil tracks in the Grand Canyon s Coconino Sandstone point to underwater deposition, rather than desert wind deposition
  • Formation Moenkopi Formation Kaibab Limestone Toroweap Formation Coconino Sandstone Hermit Shale Supai Group Surprise Canyon Formation Redwall Limestone
  • Lechatelierite was formed during the impact of a meteorite into a layer of Coconino Sandstone at Meteor Crater in Arizona. During the rapid pressure reduction following
  • switchbacks during its descent through the upper canyon rock layers. In the Coconino Sandstone the trail is at its steepest. There are numerous boulders, some very
  • Virginia. Hartman, J. H. 2001 Muav Limestone, Grand Canyon National Park, Coconino County, Arizona. GeoDIL, A Geoscience Digital Image Library, University
  • Tapeats Sandstone is the lower geologic unit, about 230 feet 70 m thick, at its maximum, of the 3 - member Tonto Group. The Tapeats Sandstone is the highly
  • another 1 2 mile 0.80 km climbing back out of the Hermit Shale and Coconino Sandstone layers to Dripping Springs, a perennial water source. Water from here
  • exposures in walls that form the Glen Canyon of the Colorado River in Coconino County, Arizona and San Juan County, Utah. An overview of the group was
  • resembles the Buckey O Neill Cabin at the South Rim. The cabin rests on a Coconino sandstone foundation. It measures 37 feet 11 m by 27 feet 8.2 m arranged

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