Geology of the Zion and Kolob canyons area information
Geology of Zion National Park in Utah
The geology of the Zion and Kolob canyons area includes nine known exposed formations, all visible in Zion National Park in the U.S. state of Utah. Together, these formations represent about 150 million years of mostly Mesozoic-aged sedimentation in that part of North America.[1] Part of a super-sequence of rock units called the Grand Staircase, the formations exposed in the Zion and Kolob area were deposited in several different environments that range from the warm shallow seas of the Kaibab and Moenkopi formations, streams and lakes of the Chinle, Moenave, and Kayenta formations to the large deserts of the Navajo and Temple Cap formations and dry near shore environments of the Carmel Formation.
Subsequent uplift of the Colorado Plateau slowly raised these formations much higher than where they were deposited. This steepened the stream gradient of the ancestral rivers and other streams on the plateau. The faster-moving streams took advantage of uplift-created joints in the rocks to remove all Cenozoic-aged formations and cut gorges into the plateaus. Zion Canyon was cut by the North Fork of the Virgin River in this way. Lava flows and cinder cones covered parts of the area during the later part of this process.
Zion National Park includes an elevated plateau that consists of sedimentary formations that dip very gently to the east. This means that the oldest strata are exposed along the Virgin River in the Zion Canyon part of the park, and the youngest are exposed in the Kolob Canyons section. The plateau is bounded on the east by the Sevier Fault Zone, and on the west by the Hurricane Fault Zone. Weathering and erosion along north-trending faults and fractures influence the formation of landscape features, such as canyons, in this region.
^Harris, Tuttle & Tuttle 1997, p. 34.
and 17 Related for: Geology of the Zion and Kolob canyons area information
ThegeologyoftheZionandKolobcanyonsarea includes nine known exposed formations, all visible in Zion National Park in the U.S. state of Utah. Together...
incorporated into the national park in 1956. Congress designated 85% ofthe park a wilderness area in 2009. ThegeologyoftheZionandKolobcanyonsarea includes...
not exposed in the immediate area (see geologyoftheZionandKolobcanyonsarea for a discussion about these older sediments). Mud and silt were deposited...
Canyon and lower Zion Canyon, first opened in 1930. GeologyoftheZionandKolobcanyonsarea "Zion National Park, Utah". U.S. National Park Service. Retrieved...
Alaska Kern Canyon, California Kings Canyon, California KolobCanyons, Zion National Park, Utah Keystone Canyon, Alaska Lehigh River Gorge, Pennsylvania...
Peninsula Geology of Nepal Geology of the Pyrenees Geologyof Somerset GeologyoftheZionandKolobcanyonsarea Gilwern Hill, Powys Glen Rose Formation Gurney...
and frosted sand. It reached its greatest thickness, 2,000 feet (610 m) in what is now Zion National Park (see geologyoftheZionandKolobcanyons area)...
portal Utah portal GeologyoftheZionandKolobcanyonsarea Mount Kinesava The Sundial The Witch Head Three Marys Altar of Sacrifice "The West Temple, Utah"...
Utah Geology of the Zion andKolobcanyonsarea Colorado Plateau "Mountain ofthe Sun, Utah". Peakbagger.com. "Mountain ofthe Sun - 6,722' UT". listsofjohn...