|
Monument Valley Navajo Tribal Park
Monument Valley (, , meaning "valley of the rocks") is a region of the Colorado Plateau characterized by a cluster of sandstone buttes, with the largest reaching above the valley floor. The most famous butte formations are located in northeastern Arizona along the Utah–Arizona state line. The valley is considered sacred by the Navajo Nation, the Native American people within whose reservation it lies. Monument Valley has been featured in many forms of media since the 1930s. Famed director John Ford used the location for a number of his Westerns. Film critic Keith Phipps wrote that "its have defined what decades of moviegoers think of when they imagine the American West". Geography and geology Monument Valley is part of the Colorado Plateau. The elevation of the valley floor ranges from above sea level. The floor is largely siltstone of the Cutler Group, or sand derived from it, deposited by the meandering rivers that carved the valley. The valley's vivid red colorati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arizona
Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the northwest and California to the west, and shares Mexico-United States border, an international border with the Mexican states of Sonora and Baja California to the south and southwest. Its Capital city, capital and List of largest cities, largest city is Phoenix, Arizona, Phoenix, which is the most populous state capital and list of United States cities by population, fifth most populous city in the United States. Arizona is divided into 15 List of counties in Arizona, counties. Arizona is the list of U.S. states and territories by area, 6th-largest state by area and the list of U.S. states and territories by population, 14th-most-populous of the 50 states. It is the 48th state and last of the contiguous United States, contiguous states to be a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keith Phipps
''The A.V. Club'' is an online newspaper and entertainment website featuring reviews, interviews, and other articles that examine films, music, television, books, games, and other elements of pop-culture media. ''The A.V. Club'' was created in 1993 as a supplement to its satirical parent publication, ''The Onion''. While it was a part of ''The Onion''s 1996 website launch, ''The A.V. Club'' had minimal presence on the website at that point. A 2005 website redesign placed ''The A.V. Club'' in a more prominent position, allowing its online identity to grow. Unlike ''The Onion'', ''The A.V. Club'' is not satirical, though it does use a similarly irreverent style. The publication's name is a reference to audiovisual (AV) clubs typical of American high schools. History In 1993, five years after the founding of ''The Onion'', Stephen Thompson, a student at the University of Wisconsin–Madison, launched an entertainment section of the newspaper. Its name refers to audio visual clubs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hunts Mesa
Hunts Mesa is a rock formation located in Monument Valley, south of the border between Utah and Arizona in the United States and west of the border between Arizona's Navajo County and Apache County. It is one of two popular interior destinations in the Monument Valley Navajo Tribal Park for tourists to experience panoramic views of the popular sandstone formations from a distance. The other is Mystery Valley. A Navajo guide is required to hike to either. Hunts Mesa forms the southeastern edge of Monument Valley and the northern edge of Little Capitan Valley. Its elevation is . Access to Hunts Mesa is not through the general entrance of the park but rather through the sand dunes northeast of the town of Kayenta, Arizona. On October 16, 1984, a United States Air Force The United States Air Force (USAF) is the Air force, air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Merrick Butte
Merrick Butte is a butte located in Monument Valley Monument Valley (, , meaning "valley of the rocks") is a region of the Colorado Plateau characterized by a cluster of sandstone buttes, with the largest reaching above the valley floor. The most famous butte formations are located in northeas ...Mitten Buttes Quadrangle, Arizona-Utah, 7.5 Minute Series, US Geological Survey, 1738 ed. and is part of the Monument Valley Navajo Tribal Park, similar to its neighbors West and East Mitten Buttes just to the north.''Arizona Atlas & Gazetteer,'' De Lorme, 4th ed., 2001, p. 26 It was named after silver miner Jack Merrick, killed by Native Americans in 1880. References External links * {{commons category-inline, Merrick Butte Buttes of Arizona Landforms of Navajo County, Arizona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West And East Mitten Buttes
The West and East Mitten Buttes (also known as the Mittens) are two buttes in the Monument Valley Navajo Tribal Park in northeast Navajo County, Arizona. When viewed from the south, the buttes appear to be two giant mittens with their thumbs facing inwards. The Mittens are about from the Arizona–Utah state line and West Mitten Butte is northeast of the park headquarters. The summit of West Mitten Butte is and East Mitten Butte is in elevation. The Mittens form a triangle with Merrick Butte about to the south and, with Sentinel Mesa, a more extensive plateau, towards the northwest. At the end of March and mid-September, for a few days only at sunset, the Mitten Shadow occurs, when the West Mitten shadow appears on the East Mitten. The buttes are made of three principal rock layers. The lowest layer is Organ Rock Shale, the middle is de Chelly Sandstone, and the top layer is the Moenkopi Formation, capped by Shinarump Conglomerate. Gallery File:West Mitten Butte, E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shinarump Conglomerate
The Shinarump Conglomerate is a geologic formation found in the Four Corners region of the United States. It was deposited in the early part of the Late Triassic Period (geology), period. Description The Shinarump Conglomerate is a highly resistant coarse-grained sandstone and pebble conglomerate (minor or major conglomerates are a typical base layer after unconformities or disconformities; the Shinarump is a major conglomerate) with rare lenses of mudstone, sometimes forming a caprock because of its hardness, cementation, and erosion resistance. The Shinarump is found throughout the Colorado Plateau with significant exposures as the canyon rimrock in the vicinity of Canyon De Chelly National Monument, at the north-northeast of the Defiance Plateau/Defiance Uplift. At Canyon De Chelly the Shinarump Conglomerate was laid down upon De Chelly Sandstone-(280 Ma, an erosion unconformity of 50 my), in a region at the west foothill region of the mostly north–south trending Chuska Mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moenkopi Formation
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 Geological unit, group in Arizona. Part of the Colorado Plateau and Basin and Range Province, Basin and Range, this red sandstone was laid down in the Early Triassic, Lower Triassic and possibly part of the Middle Triassic, around 240 million years ago. History of investigation There is no designated Type locality (geology), type locality for this formation. It was named for a development at the mouth of Moencopie Wash in the Grand Canyon area by Ward in 1901. In 1917 a 'substitute' type locality was located by Gregory in the wall of the Little Colorado Canyon, about 5 miles below Tanner Crossing in Coconino County, Arizona. While in the Great Basin, Bassler and Reeside characterized and named the Rock Canyon Conglomerate, Virgin Limestone, and Shnabkaib Shale ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organ Rock Shale
The Organ Rock Formation or Organ Rock Shale is a formation within the late Pennsylvanian to early Permian Cutler Group and is deposited across southeastern Utah, northwestern New Mexico, and northeastern Arizona. This formation notably outcrops around Canyonlands National Park, Natural Bridges National Monument, and Monument Valley of northeast Arizona, southern Utah. The age of the Organ Rock is constrained to the latter half of the Cisuralian epoch by age dates from overlying and underlying formations. Important early terrestrial vertebrate fossils have been recovered from this formation in northern Arizona, southern Utah, and northern New Mexico. These include the iconic Permian terrestrial fauna: ''Seymouria'', ''Diadectes'', ''Ophiacodon'', and ''Dimetrodon''. The fossil assemblage present suggests arid environmental conditions. This is corroborated with paleoclimate data indicative of global drying throughout the early Permian. Geographic extent The Organ Rock Formation is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Strata
In geology and related fields, a stratum (: strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either '' bedding surfaces'' or ''bedding planes''.Salvador, A. ed., 1994. ''International stratigraphic guide: a guide to stratigraphic classification, terminology, and procedure. 2nd ed.'' Boulder, Colorado, The Geological Society of America, Inc., 215 pp. . Prior to the publication of the International Stratigraphic Guide, older publications have defined a stratum as being either equivalent to a single bed or composed of a number of beds; as a layer greater than 1 cm in thickness and constituting a part of a bed; or a general term that includes both ''bed'' and ''lamina''.Neuendorf, K.K.E., Mehl, Jr., J.P., and Jackson, J.A. , eds., 2005. ''Glossary of Geology'' 5th ed. Alexandria, Virginia, American Geological Institute. 779 pp. . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manganese Oxide
Manganese oxide is any of a variety of manganese oxides and hydroxides.Wells A.F. (1984) ''Structural inorganic chemistry'' 5th edition Oxford Science Publications, . These include * Manganese(II) oxide, MnO * Manganese(II,III) oxide, Mn3O4 * Manganese(III) oxide, Mn2O3 * Manganese dioxide, MnO2 * Manganese(VI) oxide, MnO3 * Manganese(VII) oxide, Mn2O7 Other manganese oxides include Mn5O8, Mn7O12 and Mn7O13. Minerals It may refer more specifically to the following manganese minerals: * Birnessite, * Buserite, * Hausmannite, * Manganite, MnO(OH) * Manganosite, MnO * Psilomelane, , or * Pyrolusite, Manganese may also form mixed oxides with other metals: * Bixbyite, , a manganese(III) iron(III) oxide mineral * Jacobsite, , a manganese(II) iron(III) oxide mineral * Columbite, , a niobate of iron(II) and manganese(II) * Tantalite, , a tantalum(V) mineral group close to that of columbite * Coltan, a mixture of columbite and tantalite series * Galaxite Galaxite, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Oxide
An iron oxide is a chemical compound composed of iron and oxygen. Several iron oxides are recognized. Often they are non-stoichiometric. Ferric oxyhydroxides are a related class of compounds, perhaps the best known of which is rust. Iron oxides and oxyhydroxides are widespread in nature and play an important role in many geological and biological processes. They are used as iron ores, pigments, catalysts, and in thermite, and occur in hemoglobin. Iron oxides are inexpensive and durable pigments in paints, coatings and colored concretes. Colors commonly available are in the " earthy" end of the yellow/orange/red/brown/black range. When used as a food coloring, it has E number E172. Stoichiometries Iron oxides feature as ferrous ( Fe(II)) or ferric ( Fe(III)) or both. They adopt octahedral or tetrahedral coordination geometry. Only a few oxides are significant at the earth's surface, particularly wüstite, magnetite, and hematite. * Oxides of FeII ** FeO: ir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cutler Group
The Cutler Formation or Cutler Group is a stratigraphic unit exposed across the U.S. states of Arizona, northwest New Mexico, southeast Utah and southwest Colorado. It was laid down in the Early Permian during the Wolfcampian epoch. Description At its type area north of Ouray, Colorado, the Cutler Formation consists of over of bright red sandstone, siltstone, and conglomerate beds alternating with reddish mudstone or clay-rich limestone. Further west, the unit shows great lithological diversity, and can be divided into easily recognizable mappable subunits. Here the Cutler is raised from formation to group rank and its subunits are themselves designated as formations. The unit in its type area remains at formation rank and is often described as the "undifferentiated Cutler". The formation overlies the Hermosa Group and is in turn overlain by either the Dolores Formation (near its type area) or the Moenkopi Formation (further west). It is laterally equivalent to the Abo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
