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The Moenkopi Formation is a geological formation that is spread across the U.S. states of New Mexico, northern Arizona, Nevada, southeastern California, eastern Utah and western Colorado. This unit is considered to be a group in Arizona.
Mitchell Butte is composed of three principal strata. The bottom layer is slope-forming Organ Rock Shale, the next stratum is cliff-forming De Chelly Sandstone, and the upper layer is Moenkopi Formation. [6] The rock ranges in age from Permian at the bottom to Triassic at the top. The buttes and mesas of Monument Valley are the result of the ...
Thunderbird Mesa is composed of three principal strata. The bottom layer is slope-forming Organ Rock Shale, the next stratum is cliff-forming De Chelly Sandstone, and the upper layer is Moenkopi Formation. The rock ranges in age from Permian at the bottom to Triassic at the top, with a major unconformity between the sandstone and Moenkopi. The ...
Ripple marks in Moenkopi Formation rock. Local climatic conditions were wetter and more tropical in the Early Triassic than they were previously. In the Capitol Reef area the resulting Moenkopi Formation is divided into four members (from oldest to youngest): [6] Black Dragon Member; Sinbad Limestone Member, Torrey Member, and; Moody Canyon Member.
Willow River (Tomahawk River tributary) Wind River; Wisconsin River; Wolf River (Eau Claire River tributary) Wolf River (Fox River tributary), tributary of Winnebago Pool; Wood River; Yahara River; Yellow River (Chippewa River tributary) Yellow River (Red Cedar River tributary) Yellow River (St. Croix River tributary) Yellow River (Wisconsin ...
The Wisconsin River is a tributary of the Mississippi River in the U.S. state of Wisconsin.At approximately 430 miles (692 km) long, it is the state's longest river. The river's name was first recorded in 1673 by Jacques Marquette as "Meskousing" from his Indian guides - most likely Miami for "river running through a red place."
The Oracle is set on a fin and is composed of two principal strata of sandstone and mudstone: Permian Cutler Formation capped by Early Triassic Moenkopi Formation. There is an unconformity between the Cutler and the Moenkopi layers. [3] The reddish coloration of the rock is a result of varying amounts of hematite. [4]
In the park, this formation can be found in the Hurricane Cliffs above the Kolob Canyons Visitor Center and in an escarpment along Interstate 15 as it skirts the park. [6] This is the same formation that rims the Grand Canyon to the south. Farther to the west, a complex island arc assemblage formed above a subduction zone.