Capitol Dome (Utah)
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Capitol Dome (Utah)
Capitol Dome is a summit located in Capitol Reef National Park, in Wayne County, Utah, United States. This iconic landmark is situated east of the park's visitor center, and southeast of Navajo Dome. Precipitation runoff from this feature is drained by tributaries of the Fremont River, which in turn is within the Colorado River drainage basin. It towers above the Fremont River and State Route 24. This geological feature's dome-like shape reminded early explorers and settlers of the dome of the United States Capitol in Washington D.C., and lent the park its name. Geology Capitol Dome is composed of Navajo Sandstone, which is believed to have formed about 180 million years ago as a giant sand sea, the largest in Earth's history. In a hot, dry climate, wind blew over sand dunes, creating large, sweeping crossbeds which date to the Jurassic. Long after the sedimentary rocks were deposited, the Colorado Plateau was uplifted relatively evenly, keeping the layers rough ...
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Utah State Route 24
State Route 24 (SR-24) is a state highway in south central Utah which runs south from Salina through Sevier County then east through Wayne County and north east through Emery County. At a total of 163.294 miles (262.796 km), it is the longest contiguous state route in Utah. A portion of the highway has been designated the ''Capitol Reef Scenic Byway'' as part of the Utah Scenic Byways program. Route description The highway starts at US-50 near Salina and ends at I-70 near Green River, taking a scenic route between the Fishlake and Dixie National Forests then through Capitol Reef National Park, along the eastern side of the San Rafael Reef passing Goblin Valley State Park and meeting I-70 again near Green River. Along the way, it passes through the towns of Loa, Lyman, Bicknell, Torrey and Hanksville. The Mars Society established the Mars Desert Research Station just outside Hanksville, due to its Mars-like terrain . The north easterly section past the San Rafael R ...
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United States Capitol
The United States Capitol, often called The Capitol or the Capitol Building, is the seat of the legislative branch of the United States federal government, which is formally known as the United States Congress. It is located on Capitol Hill at the eastern end of the National Mall in Washington, D.C. Though no longer at the geographic center of the federal district, the Capitol forms the origin point for the street-numbering system of the district as well as its four quadrants. Central sections of the present building were completed in 1800. These were partly destroyed in the 1814 Burning of Washington, then were fully restored within five years. The building was later enlarged by extending the wings for the chambers for the bicameral legislature, the House of Representatives in the south wing and the Senate in the north wing. The massive dome was completed around 1866 just after the American Civil War. Like the principal buildings of the executive and judicial branches ...
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Mountains Of Wayne County, Utah
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ...
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Mountains Of Utah
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ...
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Geology Of The Capitol Reef Area
The exposed geology of the Capitol Reef area presents a record of mostly Mesozoic-aged sedimentation in an area of North America in and around Capitol Reef National Park, on the Colorado Plateau in southeastern Utah. Nearly 10,000 feet (3,000  m) of sedimentary strata are found in the Capitol Reef area, representing nearly 200 million years of geologic history of the south-central part of the U.S. state of Utah. These rocks range in age from Permian (as old as 270 million years old) to Cretaceous (as young as 80 million years old.) Rock layers in the area reveal ancient climates as varied as rivers and swamps ( Chinle Formation), Sahara-like deserts (Navajo Sandstone), and shallow ocean (Mancos Shale). The area's first known sediments were laid down as a shallow sea invaded the land in the Permian. At first sandstone was deposited but limestone followed as the sea deepened. After the sea retreated in the Triassic, streams deposited silt before the area was uplifted an ...
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List Of Mountains In Utah
Mountains in Utah are numerous and have varying elevations and prominences. Kings Peak, in the Uinta Mountains in Duchesne County, Utah, is the highest point in the state and has the greatest prominence. It has elevation and prominence . It also has topographic isolation of , highest amongst summits of Utah having at least 500 meters of prominence. For lists of the top 50 peaks in Utah by elevation, prominence, and topographic isolation, see List of mountain peaks of Utah. This "List of mountains in Utah" should include all of those (but does not yet) and more. To see locations of all mountains having coordinates in this article (primarily from just three counties in the state, so far) together in one map, click on "Map all coordinates using OSM" at the right side of this page. Partial lists of mountains in just a few of Utah's 29 counties are below. Salt Lake County Mountains in Salt Lake County, Utah include: Utah County Mountains in Utah County, Utah i ...
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Cold Semi-arid Climate
A semi-arid climate, semi-desert climate, or steppe climate is a dry climate sub-type. It is located on regions that receive precipitation below potential evapotranspiration, but not as low as a desert climate. There are different kinds of semi-arid climates, depending on variables such as temperature, and they give rise to different biomes. Defining attributes of semi-arid climates A more precise definition is given by the Köppen climate classification, which treats steppe climates (''BSk'' and ''BSh'') as intermediates between desert climates (BW) and humid climates (A, C, D) in ecological characteristics and agricultural potential. Semi-arid climates tend to support short, thorny or scrubby vegetation and are usually dominated by either grasses or shrubs as it usually can't support forests. To determine if a location has a semi-arid climate, the precipitation threshold must first be determined. The method used to find the precipitation threshold (in millimeters): *multiply ...
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Köppen Climate Classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notably in 1918 and 1936. Later, the climatologist Rudolf Geiger (1894–1981) introduced some changes to the classification system, which is thus sometimes called the Köppen–Geiger climate classification system. The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (temperate), ''D'' (continental), and ''E'' (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the ''E'' group are assigned a seasonal precipitation subgroup (the second letter). For example, ''Af'' indi ...
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Laramide Orogeny
The Laramide orogeny was a time period of mountain building in western North America, which started in the Late Cretaceous, 70 to 80 million years ago, and ended 35 to 55 million years ago. The exact duration and ages of beginning and end of the orogeny are in dispute. The Laramide orogeny occurred in a series of pulses, with quiescent phases intervening. The major feature that was created by this orogeny was deep-seated, thick-skinned deformation, with evidence of this orogeny found from Canada to northern Mexico, with the easternmost extent of the mountain-building represented by the Black Hills of South Dakota. The phenomenon is named for the Laramie Mountains of eastern Wyoming. The Laramide orogeny is sometimes confused with the Sevier orogeny, which partially overlapped in time and space. The orogeny is commonly attributed to events off the west coast of North America, where the Kula Plate, Kula and Farallon Plates were sliding under the North American plate. Most hypothes ...
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Monocline
A monocline (or, rarely, a monoform) is a step-like fold in rock strata consisting of a zone of steeper dip within an otherwise horizontal or gently-dipping sequence. Formation Monoclines may be formed in several different ways (see diagram) * By differential compaction over an underlying structure, particularly a large fault at the edge of a basin due to the greater compactibility of the basin fill, the amplitude of the fold will die out gradually upwards. * By mild reactivation of an earlier extensional fault during a phase of inversion causing folding in the overlying sequence. * As a form of fault propagation fold during upward propagation of an extensional fault in basement into an overlying cover sequence. * As a form of fault propagation fold during upward propagation of a reverse fault in basement into an overlying cover sequence. Examples * Waterpocket Fold in Capitol Reef National Park, Utah *Comb Ridge in southern Utah * Grandview-Phantom Monocline in Grand Can ...
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Waterpocket Fold
The Waterpocket Fold is a geologic landform that extends from southern Wayne through Garfield and ending in northern Kane counties of southern Utah, United States.''Utah Atlas & Gazeteer,'' DeLorme, 9th ed., 2014, pp. 44, 52, 60-1 The geologic structure, formed during the Laramide orogeny, is a south-southeast trending fold in which the east side is dropped relative to the west side. This monoclinal fold extends for nearly in the semi-arid plateau of the central part of the state. The structure defines the Capitol Reef National Park in southern Utah. The feature can be observed in three scenic routes in the park. The park's Scenic Drive leads to a famous landmark known as the Golden Throne. The northern portion of the Waterpocket Fold lies north and east of the town of Fruita, west and just southeast of the Middle Desert. Utah State Route 24 crosses the fold east of Fruita. Notom Road runs south through Notom and runs parallel to the east (downdropped) side of th ...
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Cross-bedding
In geology, cross-bedding, also known as cross-stratification, is layering within a stratum and at an angle to the main bedding plane. The sedimentary structures which result are roughly horizontal units composed of inclined layers. The original depositional layering is tilted, such tilting not being the result of post-depositional deformation. Cross-beds or "sets" are the groups of inclined layers, which are known as cross-strata. Cross-bedding forms during deposition on the inclined surfaces of bedforms such as ripples and dunes; it indicates that the depositional environment contained a flowing medium (typically water or wind). Examples of these bedforms are ripples, dunes, anti-dunes, sand waves, hummocks, bars, and delta slopes.Collinson, J.D., Thompson, D.B., 1989, Sedimentary Structures (2nd ed): Academic Division of Unwin Hyman Ltd, Winchester, MA, XXX p. Environments in which water movement is fast enough and deep enough to develop large-scale bed forms fall into thre ...
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