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Boars Tusk
Boars Tusk is an isolated remains of a volcano within the Rock Springs Uplift in the Green River Basin of southwestern Wyoming. It has a peak elevation of and rises some above the surrounding Killpecker Creek plain and lies north of Rock Springs. The north end of White Mountain lies to the west. Boars Tusk is an isolated remnant of a long extinct volcano associated with the Leucite Hills to the east. Heavily eroded, all that remains of the volcano is part of the erosion resistant volcanic neck which is composed of the uncommon volcanic rock lamproite Lamproite is an ultrapotassic mantle-derived volcanic or subvolcanic rock. It has low CaO, Al2O3, Na2O, high K2O/Al2O3, a relatively high MgO content and extreme enrichment in incompatible elements. Lamproites are geographically widespread .... Rock samples from Boars Tusk provided an age of 2.5 MA.R. A. Lange et al., ''40Ar/39Ar chronology of the Leucite Hills, Wyoming: eruption rates, erosion rates, and an evolvi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sweetwater County, Wyoming
Sweetwater County is a county in southwestern Wyoming, United States. As of the 2020 United States Census, the population was 42,272, making it the fourth-most populous county in Wyoming. Its county seat is Green River. By area, it is the largest county in Wyoming. Its southern boundary line abuts the north lines of the states of Colorado and Utah. Sweetwater County comprises the Rock Springs, Green River, Wyoming Micropolitan Statistical Area. History Sweetwater County was created on December 17, 1867, as a county within the Dakota Territory. The county was formed of territory partitioned from Laramie County. The county was originally named Carter County for Judge W.A. Carter of Fort Bridger In 1869, the newly established legislature of the Wyoming Territory renamed the county for the Sweetwater River. Also in 1869, Uinta County was organized with land ceded by Sweetwater County. Johnson County, originally named Pease County, was formed from parts of Sweetwater and Car ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucite Hills
Leucite is a rock-forming mineral of the feldspathoid group, silica-undersaturated and composed of potassium and aluminium tectosilicate KAlSi2O6. Crystals have the form of cubic icositetrahedra but, as first observed by Sir David Brewster in 1821, they are not optically isotropic, and are therefore pseudo-cubic. Goniometric measurements made by Gerhard vom Rath in 1873 led him to refer the crystals to the tetragonal system. Optical investigations have since proved the crystals to be still more complex in character, and to consist of several orthorhombic or monoclinic individuals, which are optically biaxial and repeatedly twinned, giving rise to twin-lamellae and to striations on the faces. When the crystals are raised to a temperature of about 500 °C they become optically isotropic and the twin-lamellae and striations disappear, although they reappear when the crystals are cooled again. This pseudo-cubic character of leucite is very similar to that of the mineral boraci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredth an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remains Of A Volcano
Remains or The Remains may refer to: Music *The Remains (band), a 1960s American rock band *The Ramainz, originally The Remains, a Ramones tribute band Albums * ''Remains'' (Alkaline Trio album), 2007 * ''Remains'' (Annihilator album), 1997 * ''Remains'' (The Only Ones album), 1984 * ''Remains'' (Steve Lacy album) or the title song, 1992 * ''The Remains'' (album), by the Remains, 1966 *''Remains'', by Bella Morte, 1997 Songs * "Remains" (song), by Maurissa Tancharoen and Jed Whedon, 2009 *"Remains", by Charlotte Church from '' Three'', 2013 *"Remains", by Zola Jesus from ''Okovi'', 2017 Other uses * ''Remains'' (comics), a 2004 comic book series by Steve Niles and Kieron Dwyer ** ''Remains'' (film), a 2011 American horror film based on the comic book series * ''The Remains'' (film), a 2016 American horror film See also *Human remains (other) Human remains may refer to: A corpse or skeleton * A deceased human body ** A cadaver ** A skeleton A skeleton is the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Springs Uplift
The Rock Springs Uplift is an area of uplifted Cretaceous to Eocene rocks in Wyoming surrounded and once covered by sediments of the Green River Formation which were deposited in the Eocene Lake Gosiute.Surdam, Ronald C. and K. O. Stanley, ''Lacustrine sedimentation during the culminating phase of Eocene Lake Gosiute, Wyoming (Green River Formation),'' Geological Society of America Bulletin, 1979, 90, no. 1, pp. 93-110 The Rock Springs Uplift formed in the Late Cretaceous through the Eocene and is related to the Laramide orogeny. The structure is a north–south trending anticline with a surface expression of approximately by . The community of Rock Springs is located on the western margin of the uplift. A recently discovered lithium deposit is estimated at 228,000 tons. Additional deposits in the same formation were extrapolated to be as much as 18 million tons. Features * White Mountain * Aspen Mountain * Wilkins Peak References Landforms of Wyoming {{Wyomi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green River Basin
Green is the color between cyan and yellow on the visible spectrum. It is evoked by light which has a dominant wavelength of roughly 495570 nm. In subtractive color systems, used in painting and color printing, it is created by a combination of yellow and cyan; in the RGB color model, used on television and computer screens, it is one of the additive primary colors, along with red and blue, which are mixed in different combinations to create all other colors. By far the largest contributor to green in nature is chlorophyll, the chemical by which plants photosynthesize and convert sunlight into chemical energy. Many creatures have adapted to their green environments by taking on a green hue themselves as camouflage. Several minerals have a green color, including the emerald, which is colored green by its chromium content. During post-classical and early modern Europe, green was the color commonly associated with wealth, merchants, bankers, and the gentry, while red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wyoming
Wyoming () is a state in the 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 least populous state despite being the 10th largest by area, with the second-lowest population density after Alaska. The state capital and most populous city is 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. It is drier and windier than the rest of the country, being split between semi-arid and continental climates with greater temperature extremes. Almost half of the land in Wyoming is owned by the federal government, generally protected for public uses. The stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rock Springs, Wyoming
Rock Springs is a city in Sweetwater County, Wyoming, United States. The population was 23,036 at the 2010 census, making it the fifth most populated city in the state of Wyoming, and the most populous city in Sweetwater County. Rock Springs is the principal city of the Rock Springs micropolitan statistical area, which has a population of 37,975. Rock Springs is known as the Home of 56 Nationalities because of the influx of immigrants from all over the world who came to work in the coal mines that supplied the fuel to power the steam engines of the Union Pacific Railroad. The city's rich cultural heritage is celebrated each summer on International Day, a festival where the foods, costumes, and traditions of residents' ancestors are recreated and enjoyed at Bunning Park in downtown Rock Springs. Rock Springs is the site of Western Wyoming Community College and Wyoming's Big Show, a yearly event with a carnival and concerts which is held at the Sweetwater County Events Complex. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Mountain (Wyoming)
The central portion of the mountain, from Rock Springs, Wyoming White Mountain is a long mountain located in central Sweetwater County, Wyoming, near the cities of Rock Springs and Green River. The mountain is part of the Green River Formation, and contains communications towers that serve a number of purposes. Hundreds of carved figures also dot the sandstone cliffs at the White Mountain Petroglyph site and range from 200 to 1000 years old. Pilot Butte, located on top of White Mountain, is accessible from roads on the mountain. Geology Like its neighbor, Wilkins Peak, White Mountain is a member of the Green River Formation, a formation of the intermontane Lake Gosiute environment during the Eocene epoch. White Mountain is part of the Rock Springs Uplift, and some of the largest oil shale and trona beds in the region are located west of the mountain. White Mountain contains sediment from a subcategory of the Green River Formation, known as the ''Wilkins Peak Formation''. The pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erosion
Erosion is the action of surface processes (such as water flow or wind) that removes soil, rock, or dissolved material from one location on the Earth's crust, and then transports it to another location where it is deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as ''physical'' or ''mechanical'' erosion; this contrasts with ''chemical'' erosion, where soil or rock material is removed from an area by dissolution. Eroded sediment or solutes may be transported just a few millimetres, or for thousands of kilometres. Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and waves; glacial plucking, abrasion, and scour; areal flooding; wind abrasion; groundwater processes; and mass movement processes in steep landscapes like landslides and debris flows. The rates at which such processes act control how fast a surface is eroded. Typically, physical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Neck
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are diverging or converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot volcanism, of which the Hawaiian hotspot is an example. Volcanoes are usually not created where two tectonic plates slid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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