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Mount Le Conte (Tennessee)
Mount Le Conte (or LeConte) is a mountain located within the Great Smoky Mountains National Park in Sevier County, Tennessee. At it is the third highest peak in the national park, behind Kuwohi (formerly Clingmans Dome) () and Mount Guyot (Great Smoky Mountains), Mount Guyot (). It is also the highest peak that is completely within Tennessee. From its immediate base to its summit, Mount Le Conte is the mountain with the highest relief east of the Rocky Mountains, rising from its base, near Gatlinburg, Tennessee (elevation ). For comparison, 1980 eruption of Mount St. Helens, Pre-1980 Mount St. Helens in Washington (state), Washington was roughly above its base. There are four subpeaks above on the mountain (referred to as the LeConte massif): West Point (), High Top (), Cliff Tops (), and Myrtle Point (). In addition, Balsam Point, with an elevation above , serves as the dramatic west end of the massif. Mount Le Conte has the highest inn that provides lodging for visitors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuwohi
Kuwohi (, also known as Clingmans Dome, its former official name) is a mountain in the Great Smoky Mountains of Tennessee and North Carolina in the Southeastern United States. At an topographical summit, elevation of , it is the highest mountain in the Great Smoky Mountains National Park, the highest point in the state of Tennessee, and the highest point along the Appalachian Trail. It is also the third highest point in eastern mainland North America, after Mount Mitchell () and Mount Craig (North Carolina), Mount Craig (). Description Kuwohi has two subpeaks: Mount Buckley to the west and Mount Love to the east. The headwaters of several substantial streams are located on the slopes of Kuwohi, including Little River (Tennessee), Little River on the north slope, and Forney Creek and Noland Creek, both of which are tributaries of the Tuckasegee River, on the south slope. The mountain is located entirely within the Tennessee Valley, watershed of the Tennessee River.National Par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Le Conte
John LeConte (December 4, 1818 – April 29, 1891) was an American scientist and academic. He served as president of the University of California from 1869 to 1870 and from 1875 to 1881. Biography LeConte was born in Liberty County, Georgia, to Louis Le Conte, patriarch of the noted LeConte family. He attended Franklin College at the University of Georgia where he was a member of the Phi Kappa Literary Society and graduated in 1838. His younger brother Joseph LeConte also attended the university. Like many of his immediate relatives, LeConte studied medicine at the New York College of Physicians and Surgeons and earned his M.D. in 1842. During this time, LeConte married Eleanor Josephine Graham. He practiced medicine until 1846 when he returned to the University of Georgia as a professor of physics and chemistry and taught there until 1855. His next academic position was at the University of South Carolina as professor of physics and chemistry from 1856 until 1869. In Marc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weathering
Weathering is the deterioration of rocks, soils and minerals (as well as wood and artificial materials) through contact with water, atmospheric gases, sunlight, and biological organisms. It occurs '' in situ'' (on-site, with little or no movement), and so is distinct from erosion, which involves the transport of rocks and minerals by agents such as water, ice, snow, wind, waves and gravity. Weathering processes are either physical or chemical. The former involves the breakdown of rocks and soils through such mechanical effects as heat, water, ice and wind. The latter covers reactions to water, atmospheric gases and biologically produced chemicals with rocks and soils. Water is the principal agent behind both kinds, though atmospheric oxygen and carbon dioxide and the activities of biological organisms are also important. Biological chemical weathering is also called biological weathering. The materials left after the rock breaks down combine with organic material to create so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conglomerate (geology)
Conglomerate () is a sedimentary rock made up of rounded gravel-sized pieces of rock surrounded by finer-grained sediments (such as sand, silt, or clay). The larger fragments within conglomerate are called clasts, while the finer sediment surrounding the clasts is called the matrix. The clasts and matrix are typically cemented by calcium carbonate, iron oxide, silica, or hardened clay. Conglomerates form when rounded gravels deposited by water or glaciers become solidified and cemented by pressure over time. They can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. They are closely related to sandstones in origin, and exhibit many of the same types of sedimentary structures, such as tabular and trough cross-bedding and graded bedding.Boggs, S. (2006) ''Principles of Sedimentology and Stratigraphy.'', 2nd ed. Prentice Hall, New York. 662 pp. Friedman, G.M. (2003) ''Classification of sediments and s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shale
Shale is a fine-grained, clastic sedimentary rock formed from mud that is a mix of flakes of Clay mineral, clay minerals (hydrous aluminium phyllosilicates, e.g., Kaolinite, kaolin, aluminium, Al2Silicon, Si2Oxygen, O5(hydroxide, OH)4) and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite.Blatt, Harvey and Robert J. Tracy (1996) ''Petrology: Igneous, Sedimentary and Metamorphic'', 2nd ed., Freeman, pp. 281–292 Shale is characterized by its tendency to split into thin layers (Lamination (geology), laminae) less than one centimeter in thickness. This property is called ''Fissility (geology), fissility''. Shale is the most common sedimentary rock. The term ''shale'' is sometimes applied more broadly, as essentially a synonym for mudrock, rather than in the narrower sense of clay-rich fissile mudrock. Texture Shale typically exhibits varying degrees of fissility. Because of the parallel orientation of clay mineral flakes in shale, it breaks in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siltstone
Siltstone, also known as aleurolite, is a clastic sedimentary rock that is composed mostly of silt. It is a form of mudrock with a low clay mineral content, which can be distinguished from shale by its lack of fissility. Although its permeability and porosity is relatively low, siltstone is sometimes a tight gas reservoir rock, an unconventional reservoir for natural gas that requires hydraulic fracturing for economic gas production. Siltstone was prized in ancient Egypt for manufacturing statuary and cosmetic palettes. The siltstone quarried at Wadi Hammamat was a hard, fine-grained siltstone that resisted flaking and was almost ideal for such uses. Description There is not complete agreement on the definition of siltstone. One definition is that siltstone is mudrock (clastic sedimentary rock containing at least 50% clay and silt) in which at least 2/3 of the clay and silt fraction is composed of silt-sized particles. Silt is defined as grains 2–62 μm in diam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandstone
Sandstone is a Clastic rock#Sedimentary clastic rocks, clastic sedimentary rock composed mainly of grain size, sand-sized (0.0625 to 2 mm) silicate mineral, silicate grains, Cementation (geology), cemented together by another mineral. Sandstones comprise about 20–25% of all sedimentary rocks. Most sandstone is composed of quartz or feldspar, because they are the most resistant minerals to the weathering processes at the Earth's surface. Like uncemented sand, sandstone may be imparted any color by impurities within the minerals, but the most common colors are tan, brown, yellow, red, grey, pink, white, and black. Because sandstone beds can form highly visible cliffs and other topography, topographic features, certain colors of sandstone have become strongly identified with certain regions, such as the red rock deserts of Arches National Park and other areas of the Southwestern United States, American Southwest. Rock formations composed of sandstone usually allow the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Proterozoic
The Neoproterozoic Era is the last of the three geologic eras of the Proterozoic eon, spanning from 1 billion to 538.8 million years ago, and is the last era of the Precambrian "supereon". It is preceded by the Mesoproterozoic era and succeeded by the Paleozoic era of the Phanerozoic eon, and is further subdivided into three periods, the Tonian, Cryogenian and Ediacaran. One of the most severe glaciation events known in the geologic record occurred during the Cryogenian period of the Neoproterozoic, when global ice sheets may have reached the equator and created a "Snowball Earth" lasting about 100 million years. The earliest fossils of complex life are found in the Tonian period in the form of ''Otavia'', a primitive sponge, and the earliest fossil evidence of metazoan radiation are found in the Ediacaran period, which included the namesaked Ediacaran biota as well as the oldest definitive cnidarians and bilaterians in the fossil record. According to Rino and co-workers, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spring (hydrology)
A spring is a natural exit point at which groundwater emerges from an aquifer and flows across the ground surface as surface water. It is a component of the hydrosphere, as well as a part of the water cycle. Springs have long been important for humans as a source of fresh water, especially in arid regions which have relatively little annual rainfall. Springs are driven out onto the surface by various natural forces, such as gravity and hydrostatic pressure. A spring produced by the emergence of geothermally heated groundwater is known as a hot spring. The yield of spring water varies widely from a volumetric flow rate of nearly zero to more than for the biggest springs. Formation Springs are formed when groundwater flows onto the surface. This typically happens when the water table reaches above the surface level, or if the terrain depresses sharply. Springs may also be formed as a result of karst topography, aquifers or volcanic activity. Springs have also been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Carolina
North Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, South Carolina to the south, Georgia (U.S. state), Georgia to the southwest, and Tennessee to the west. The state is the List of U.S. states and territories by area, 28th-largest and List of U.S. states and territories by population, 9th-most populous of the List of states and territories of the United States, United States. Along with South Carolina, it makes up the Carolinas region of the East Coast of the United States, East Coast. At the 2020 United States census, 2020 census, the state had a population of 10,439,388. Raleigh, North Carolina, Raleigh is the state's List of capitals in the United States, capital and Charlotte, North Carolina, Charlotte is its List of municipalities in North Carolina, most populous and one of the fastest growing cities in the United States. The Charl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knoxville, Tennessee
Knoxville is a city in Knox County, Tennessee, United States, and its county seat. It is located on the Tennessee River and had a population of 190,740 at the 2020 United States census. It is the largest city in the East Tennessee Grand Divisions of Tennessee, Grand Division and the state's List of municipalities in Tennessee, third-most populous city, after Nashville and Memphis, Tennessee, Memphis.U.S. Census Bureau2010 Census Interactive Population Search. Retrieved: December 20, 2011. It is the principal city of the Knoxville metropolitan area, which had a population of 879,773 in 2020. First settled in 1786, Knoxville was the first capital of Tennessee. The city struggled with geographic isolation throughout the early 19th century; the History of rail transportation in the United States#Early period (1826–1860), arrival of the railroad in 1855 led to an economic boom. The city was bitterly Tennessee in the American Civil War#Tennessee secedes, divided over the issue of sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
