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Fin (geology)
A fin is a geological formation that is a narrow, residual wall of hard sedimentary rock that remains standing after surrounding rock has been eroded away along parallel joints or fractures. Fins are formed when a narrow butte or plateau develops many vertical, parallel cracks. There are two main modes of following erosion. The first is when water flows along joints and fractures and opens them wider and wider, eventually causing erosion. The second is where the rock type (stratum) is harder and more erosion resistant than neighboring rocks, causing the weaker rock to fall away. Fins are considered an intermediary stage of many other erosional geologic features like windows, arches, and hoodoos. The formation of such features is a simplified four-step process. The first step is uplift that results in deep parallel, vertical fractures within the plateau. The second step is weathering and erosion that enlarges the fractures, producing fins. The third step is erosion attacking fins from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by Abraham Gottlob Wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wyoming
Wyoming () is a U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the south. With a population of 576,851 in the 2020 United States census, Wyoming is the List of U.S. states and territories by population, least populous state despite being the List of U.S. states and territories by area, 10th largest by area, with the List of U.S. states by population density, second-lowest population density after Alaska. The state capital and List of municipalities in Wyoming, most populous city is Cheyenne, Wyoming, Cheyenne, which had an estimated population of 63,957 in 2018. Wyoming's western half is covered mostly by the ranges and rangelands of the Rocky Mountains, while the eastern half of the state is high-elevation prairie called the High Plains (United States), High Plains. It is drier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury (planet), Mercury. In the English language, Mars is named for the Mars (mythology), Roman god of war. Mars is a terrestrial planet with a thin atmosphere (less than 1% that of Earth's), and has a crust primarily composed of elements similar to Earth's crust, as well as a core made of iron and nickel. Mars has surface features such as impact craters, valleys, dunes and polar ice caps. It has two small and irregularly shaped moons, Phobos (moon), Phobos and Deimos (moon), Deimos. Some of the most notable surface features on Mars include Olympus Mons, the largest volcano and List of tallest mountains in the Solar System, highest known mountain in the Solar System and Valles Marineris, one of the largest canyons in the Solar System. The North Polar Basin (Mars), Borealis basin in the Northern Hemisphere covers approximately 40% of the planet and may be a la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matijevic Hill
Matijevic Hill, named after Americans, American NASA engineer Jacob Matijevic, Jacob "Jake" Matijevic (1947 - 2012), is a hill located on "Cape York (Mars), Cape York", itself on the western rim of Endeavour (crater), Endeavour Crater lying within the Margaritifer Sinus quadrangle (MC-19) region of the Mars, planet Mars. It was discovered by the Opportunity rover, and named by NASA on September 28, 2012. The "approximate" site coordinates are: . The hill includes a outcrop, rock outcrop called ''Kirkwood'', where Opportunity found a concentration of small spherical features. It also includes an area where clay minerals have been detected from orbiter observations. See also * Composition of Mars * Geography of Mars * Jake Matijevic (rock) * List of rocks on Mars *List of surface features of Mars imaged by Opportunity, List of surface features of Mars imaged by ''Opportunity'' References External links Official Mars Rovers site Hills on Mars Mars Exploration Rover mis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devil's Garden
In myrmecology and forest ecology, a devil's garden (Kichwa: ''Supay chakra''Frederickson, M. E., & Gordon, D. (2007). The devil to pay: the cost of mutualism with ''Myrmelachista schumanni'' ants in 'devil's gardens' is increased herbivory on ''Duroia hirsuta'' trees. ''Proc. R. Soc. B''. 274 (1613): 1117-23.David P. Edwards, Megan E. Frederickson, Glenn H. Shepard, and Douglas W. Yu (2009): A Plant Needs Ants like a Dog Needs Fleas: Myrmelachista schumanni Ants Gall Many Tree Species to Create Housing.'' The American Naturalist 174, no. 5: pp. 734-740.) is a large stand of trees in the Amazon rainforest consisting of at most three tree species and the ant ''Myrmelachista schumanni''. Devil's gardens can reach up to sizes of 600 trees and are inhabited by a single ant colony, containing up to 3 million workers and 15,000 queens.Frederickson, M. E., Greene, M. J., & Gordon, D. (2005). Ecology: 'Devil's gardens' bedevilled by ants. ''Nature'' 437: 495-6. In a 2002 to 2004 ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiery Furnace (Arches National Park)
The Fiery Furnace is a collection of narrow sandstone canyons, fins and natural arches located near the center of Arches National Park in Utah, United States. The area is a popular hiking destination that was named for the reddish hue it exhibits in sunset light. The Fiery Furnace contains a variety of plant species, including one of the largest known concentrations of Canyonlands biscuitroot. Fragile ecological features such as biological soil crust Biological soil crusts are communities of living organisms on the soil surface in arid and semi-arid ecosystems. They are found throughout the world with varying species composition and cover depending on topography, soil characteristics, climate, ... and ephemeral pools are also found within the Fiery Furnace, and are vulnerable to visitor impact. Arches National Park has more than 2,000 cataloged sandstone arches, with some being located in the Fiery Furnace, including Walk Through Arch, Crawl Through Arch, Skull Arch, Kissing Tur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Virginia
West Virginia is a state in the Appalachian, Mid-Atlantic and Southeastern regions of the United States.The Census Bureau and the Association of American Geographers classify West Virginia as part of the Southern United States while the Bureau of Labor Statistics classifies the state as a part of the Mid-Atlantic regionMid-Atlantic Home : Mid-Atlantic Information Office: U.S. Bureau of Labor Statistics" www.bls.gov. Archived. It is bordered by Pennsylvania to the north and east, Maryland to the east and northeast, Virginia to the southeast, Kentucky to the southwest, and Ohio to the northwest. West Virginia is the 10th-smallest state by area and ranks as the 12th-least populous state, with a population of 1,793,716 residents. The capital and largest city is Charleston. West Virginia was admitted to the Union on June 20, 1863, and was a key border state during the American Civil War. It was the only state to form by separating from a Confederate state, the second to sepa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seneca Rocks
Seneca Rocks is a large crag and local landmark in Pendleton County in the Eastern Panhandle of West Virginia, United States. The south peak is one of a small number of peaks inaccessible except by technical rock climbing techniques on the East Coast of the United States. One of the best-known scenic attractions in West Virginia, the sheer rock faces are a popular challenge for rock climbers. Seneca Rocks is easily visible from, and accessible by way of, West Virginia Route 28, West Virginia Route 55 and U.S. Route 33 in the Spruce Knob–Seneca Rocks National Recreation Area of the Monongahela National Forest. The three highways converge in the hamlet of Seneca Rocks, which is named for the cliffs nearby. Description Seneca Rocks is at the north end of the River Knobs, which contain several other similar "razorback" ridges or "fins" such as Judy Rocks and Nelson Rocks, all on the western flank of North Fork Mountain. Seneca Rocks is a prominent and visually striking formati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado Springs
Colorado Springs is a home rule municipality in, and the county seat of, El Paso County, Colorado, United States. It is the largest city in El Paso County, with a population of 478,961 at the 2020 United States Census, a 15.02% increase since 2010. Colorado Springs is the second-most populous city and the most extensive city in the state of Colorado, and the 40th-most populous city in the United States. It is the principal city of the Colorado Springs metropolitan area and the second-most prominent city of the Front Range Urban Corridor. It is located in east-central Colorado, on Fountain Creek, south of Denver. At the city stands over above sea level. Colorado Springs is near the base of Pikes Peak, which rises above sea level on the eastern edge of the Southern Rocky Mountains. History The Ute, Arapaho and Cheyenne peoples were the first recorded inhabiting the area which would become Colorado Springs. Part of the territory included in the United States' 1803 Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garden Of The Gods
Garden of the Gods (Arapaho: ''Ho3o’uu Niitko’usi’i'') is a public park located in Colorado Springs, Colorado, United States. It was designated a National Natural Landmark in 1971. Name The area now known as Garden of the Gods was first called Red Rock Corral by the Europeans. Then, in August 1859, two surveyors who helped to set up Colorado City explored the site. One of the surveyors, Melancthon S. Beach suggested it would be a "capital place for a beer garden". His companion, the young Rufus Cable, awestruck by the impressive rock formations, exclaimed, "Beer Garden! Why, it is a fit place for the Gods to assemble. We will call it the Garden of the Gods.", The April 5, 1893 issue of the Colorado Transcript reported, "It was Helen Hunt Jackson, it is said, who named 'the Garden of the Gods' in Colorado. Riding past the cabin of a prospector from the South in one of the early days of the settlement, she was attracted by a beautifully kept garden in which two negro s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arizona
Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Four Corners region with Utah to the north, Colorado to the northeast, and New Mexico to the east; its other neighboring states are Nevada to the northwest, California to the west and the Mexican states of Sonora and Baja California to the south and southwest. Arizona is the 48th state and last of the contiguous states to be admitted to the Union, achieving statehood on February 14, 1912. Historically part of the territory of in New Spain, it became part of independent Mexico in 1821. After being defeated in the Mexican–American War, Mexico ceded much of this territory to the United States in 1848. The southernmost portion of the state was acquired in 1853 through the Gadsden Purchase. Southern Arizona is known for its desert cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Mexico
) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Keres, Zuni , Governor = , Lieutenant Governor = , Legislature = New Mexico Legislature , Upperhouse = Senate , Lowerhouse = House of Representatives , Judiciary = New Mexico Supreme Court , Senators = * * , Representative = * * * , postal_code = NM , TradAbbreviation = N.M., N.Mex. , area_rank = 5th , area_total_sq_mi = 121,591 , area_total_km2 = 314,915 , area_land_sq_mi = 121,298 , area_land_km2 = 314,161 , area_water_sq_mi = 292 , area_water_km2 = 757 , area_water_percent = 0.24 , population_as_of = 2020 , population_rank = 36th , 2010Pop = 2,117,522 , population_density_rank = 45th , 2000DensityUS = 17.2 , 2000Density = 6.62 , MedianHouseholdIncome = $51,945 , IncomeRank = 45th , AdmittanceOrder = ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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