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  2. Geology of the Grand Canyon area - Wikipedia

    en.wikipedia.org/wiki/Geology_of_the_Grand...

    The resulting Grand Canyon Supergroup of sedimentary units is composed of nine varied geologic formations that were laid down from 1.2 billion and 740 million years ago in this sea. [11] Good exposures of the supergroup can be seen in eastern Grand Canyon in the Inner Gorge and from Desert View, Lipan Point and Moran point. [12] [note 1]

  3. Grand Staircase - Wikipedia

    en.wikipedia.org/wiki/Grand_Staircase

    View from Utah Highway 12 of Grand Staircase–Escalante National Monument. The Grand Staircase is an immense sequence of sedimentary rock layers that stretches south from Bryce Canyon National Park and Grand Staircase–Escalante National Monument, through Zion National Park, and into Grand Canyon National Park. [1]

  4. Grand Canyon - Wikipedia

    en.wikipedia.org/wiki/Grand_Canyon

    The Grand Canyon [a] is a steep-sided canyon carved by the Colorado River in Arizona, United States.The Grand Canyon is 277 miles (446 km) long, up to 18 miles (29 km) wide and attains a depth of over a mile (6,093 feet or 1,857 meters).

  5. File:Stratigraphy of the Grand Canyon.png - Wikipedia

    en.wikipedia.org/wiki/File:Stratigraphy_of_the...

    This is an Adobe Fireworks file which saves bitmaps, layers, text, and vector paths in private chunks of the PNG file. Description Stratigraphy of the Grand Canyon.png Stratigraphy of the Grand Canyon.

  6. Shinumo Quartzite - Wikipedia

    en.wikipedia.org/wiki/Shinumo_Quartzite

    It and other formations of the Unkar Group occur as isolated fault-bound remnants along the main stem of the Colorado River and its tributaries in Grand Canyon. Typically, the Shinumo Quartzite and associated strata of the Unkar Group dip northeast (10°–30°) toward normal faults that dip 60+° toward the southwest.

  7. Grand Canyon Supergroup - Wikipedia

    en.wikipedia.org/wiki/Grand_Canyon_Supergroup

    The Grand Canyon Supergroup is a Mesoproterozoic to a Neoproterozoic sequence of sedimentary strata, partially exposed in the eastern Grand Canyon of Arizona. This group comprises the Unkar Group , Nankoweap Formation , Chuar Group and the Sixtymile Formation , which overlie Vishnu Basement Rocks .

  8. Great Unconformity - Wikipedia

    en.wikipedia.org/wiki/Great_Unconformity

    Geologic stratigraphic column of strata exposed in and near the Grand Canyon. The term Great Unconformity is frequently applied to the unconformity observed by John Wesley Powell in the Grand Canyon in 1869. [1] It is an exceptional example of relatively young sedimentary rock strata overlying much older sedimentary or crystalline strata.

  9. Geology of Arizona - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Arizona

    The Mesoproterozoic formations in the Grand Canyon are overlain by the 850 million year old, Neoproterozoic Chuar Group and Sixtymile Formation sedimentary rocks. The Great Unconformity is a famous gap in the stratigraphic record of the Grand Canyon of 900 million years between Proterozoic granitic rocks and Cambrian marine sediments. For the ...