Search results
Results from the WOW.Com Content Network
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. Vertebrate tracks known as Chelichnus gigas from the Coconino Sandstone in Grand Canyon.
Lizard-like animals left their footprints in Coconino Sandstone. Coconino Sandstone formed about 275 million years ago as the area dried out and sand dunes made of quartz sand invaded a growing desert (see 6b in figure 1). [11] Some Coconino fills deep mudcracks in the underlying Hermit Shale [41] and the desert that created the Coconino lasted ...
The Middle Permian Toroweap Formation is a thin, darker geologic unit, between the brighter colored units of the Kaibab Limestone above, and Coconino Sandstone below. It is a prominent unit in Grand Canyon, Arizona, Southwestern United States, found through sections of the South Rim, Grand Canyon, and the North Rim, of the Kaibab Plateau; also the Kaibab's southeast extension to Cape Royal ...
Throughout Grand Canyon and into the Aubrey Cliffs regions, the upper contact of the Hermit Formation with the overlying Coconino Sandstone is a sharp, flat, lithologic disconformity. This disconformity lacks agradation of any kind. Dessication cracks that extend 6 m (20 ft) deep or more from the top of the Hermit.
sandstone, unit-1, labeled in Tonto Group. The summit spire of Zoroaster Temple is composed of cream-colored, cliff-forming, Permian Coconino Sandstone with a small, remnant Kaibab Limestone and Toroweap Formation caprock. [9] The sandstone, which is the third-youngest of the strata in the Grand Canyon, was deposited 265 million years ago as ...
The Esplanade Sandstone an erosion resistant member of the Supai Group creates a platform called The Esplanade. The landform is upstream on the Colorado River, South Rim, across from Toroweap Point, and the Toroweap Fault and Aubrey Cliffs are The Esplanade's west perimeter. The Aubrey Cliffs are the west edge of the Coconino Plateau.
The slope is modestly vegetated, and has large areas of erosion debris, with no obvious interlaced cliffs. The Toroweap Formation rests upon a ~400+ ft cliff of cliff-former Coconino Sandstone. The Coconino Sandstone (buff/(reddish-white)), rests upon a relatively massive unit of Hermit Formation (Hermit Shale). The slopes are vegetated, also ...
The summit of Vishnu Temple is composed of cream-colored, cliff-forming, Permian Coconino Sandstone with a Kaibab Limestone cupola caprock. [9] The sandstone, which is the third-youngest of the strata in the Grand Canyon, was deposited 265 million years ago as sand dunes.