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The Yavapai Geology Museum include three-dimensional models, photographs, and exhibits which allow park visitors to see and understand the complicated geologic story of the area. The museum building, the historic Yavapai Observation Station (built 1928), located one mile (1.6 km) east of Market Plaza, features expansive canyon views.
Mathis, A, and C Bowman (2007) The Grand Age of Rocks: The Numeric Ages for Rocks Exposed within Grand Canyon, Grand Canyon National Park, Arizona, National Park Service, Grand Canyon National Park, Arizona. Noble, FL (1914) Geologic Map and Section of the Shinumo Quadrangle, Arizona. National Geologic Map Database, U.S. Geological Survey ...
Figure 1. A geologic cross section of the Grand Canyon. [5]The Tonto Group is a name for an assemblage of related sedimentary strata, collectively known by geologists as a Group, that comprises the basal sequence Paleozoic strata exposed in the sides of the Grand Canyon.
East of the Grand Wash fault and in the Grand Canyon region, its thickness decreases abruptly to 52 m (171 ft) at Quartermaster Canyon, 106 m (348 ft) at 269-Mile Canyon, and 70 m (230 ft) near Diamond Bar Ranch. Further eastward in the Grand Canyon region, the thickness of the Frenchman Mountain Dolostone gradually decreases to 52 m (171 ft ...
Mathis, A., and C. Bowman (2007) The Grand Age of Rocks: The Numeric Ages for Rocks Exposed within Grand Canyon, Grand Canyon National Park, Arizona, National Park Service, Grand Canyon National Park, Arizona. Noble, F. L. (1914) Geologic Map and Section of the Shinumo Quadrangle, Arizona.
The nearly 40 identified rock layers of Grand Canyon form one of the most studied geologic columns in the world. The oldest exposed formation in Zion National Park is the youngest exposed formation in the Grand Canyon – the ~240‑million-year-old Kaibab Limestone.
The Uinkaret volcanic field is an area of monogenetic volcanoes in northwestern Arizona, United States, located on the north rim of the Grand Canyon. [ 2 ] Lava flows from the Uinkaret volcanic field that have cascaded down into the Grand Canyon, damming the Colorado River , have been used to date the canyon's carving. [ 3 ]
Fossil Mountain is a prominence that is located on a spur in the Western Grand Canyon, in Coconino County, Arizona.The summit of this prominence has an elevation of 6,729 ft (2,051 m) and lies about 1 mi (1.6 km) southeast of the Grand Scenic Divide, and 1 mi (1.6 km) west of Havasupai Point.