|
Mount Southwick
Mount Southwick () is a mountain (3,280 m) in Owen Ridge near the south end of the Sentinel Range of the Ellsworth Mountains in Antarctica, located 9 nautical miles (17 km) south-southeast of Mount Craddock. The peak surmounts Bolgrad Glacier to the northwest, Kornicker Glacier to the east and Sirma Glacier to the southwest. It was first mapped by the United States Geological Survey (USGS) from surveys and U.S. Navy air photos from 1957 to 1959. It was named by the Advisory Committee on Antarctic Names (US-ACAN) for Tech. Sgt. Thomas E. Southwick, a United States Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combi ... (USMC) navigator on a Navy R4D reconnaissance flight to these mountains on January 28, 1958. Maps Vinson Massif. Scale 1:250 000 topographic map. Re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountain
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 (topography), 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 Monadnock, isolated summits, but most occur in mountain ranges. Mountain formation, Mountains are formed through Tectonic plate, 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 Slump (geology), slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce Alpine climate, colder climates than at sea level at similar latitude. These colder climates strongly affect the Montane ecosystems, ecosys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Owen Ridge
Owen Ridge () is a very high and rugged mountain ridge, 22 nautical miles (41 km) long, which forms the southwesternmost element of the Sentinel Range, Ellsworth Mountains. It extends south-southeast from Karnare Col and includes Mount Strybing (3,200 m), Mount Southwick and Lishness Peak, ending up in Bowers Corner. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photography, 1957–60. Named by Advisory Committee on Antarctic Names (US-ACAN) (1974) for Thomas B. Owen, Assistant Director of National and International Programs, National Science Foundation. Maps Vinson Massif. Scale 1:250 000 topographic map. Reston, Virginia: US Geological Survey, 1988. Antarctic Digital Database (ADD).Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly updated. Features Geographical features include: * Arsela Peak * Bolgrad Glacier * Bowers Corner * Brook Glacier * Karnare Col * Kasil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel Range
The Sentinel Range is a major mountain range situated northward of Minnesota Glacier and forming the northern half of the Ellsworth Mountains in Antarctica. The range trends NNW-SSE for about and is 24 to 48 km (15 to 30 mi) wide. Many peaks rise over and Vinson Massif (4892 m) in the southern part of the range is the highest elevation on the continent.Sentinel Range. SCAR Composite Antarctic Gazetteer. Sentinel Range comprises a main ridge (featuring Vinson Massif in its southern portion) and a number of distinct heights, ridges and mountains on its east side, including (south to north) , [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellsworth Mountains
The Ellsworth Mountains are the highest mountain ranges in Antarctica, forming a long and wide chain of mountains in a north to south configuration on the western margin of the Ronne Ice Shelf in Marie Byrd Land. They are bisected by Minnesota Glacier to form the Sentinel Range to the north and the Heritage Range to the south. The former is by far the higher and more spectacular with Mount Vinson () constituting the highest point on the continent.Bockheim, J.G., Schaefer, C.E., 2015. ''Soils of Ellsworth Land, the Ellsworth Mountains''. In: Bockheim, J.G. (Ed.), ''The Soils of Antarctica. World Soils Book Series'', Springer, Switzerland, pp. 169–181. The mountains are located within the Chilean Antarctic territorial claim but outside of the Argentinian and British ones. Discovery The mountains were discovered on November 23, 1935, by Lincoln Ellsworth in the course of a trans-Antarctic flight from Dundee Island to the Ross Ice Shelf. He gave them the descriptive name Sentinel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the lowest measured temperature on Earth, . The coastal regions can reach temperatures over in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Craddock
Mount Craddock is a large, bold mountain forming the south extremity of Craddock Massif in Sentinel Range, the ninth highest mountain in Antarctica. It is linked by Karnare Col to Mount Strybing in the southern Sentinel Range. The ninth-highest mountain in Antarctica was first climbed in January 1992. The name Mount Craddock was originally recommended by the Advisory Committee on Antarctic Names (US-ACAN) in 1965 for the present-day Craddock Massif but subsequent maps limited Mount Craddock to the massif's southernmost peak, a position that became established over years. To avoid confusion and to fix the position of the name, US-ACAN redefined Mount Craddock in 2006 to apply to the southernmost peak described above.USGS GNIS The mountain was named by US-ACAN for J. Campbell Craddock (1930–2006), leader of a University of Minnesota expedition (1962–63) that made geological investigations and cartographic surveys in the Sentinel and Heritage Ranges of the Ellsworth Mountain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolgrad Glacier
Bolgrad Glacier ( bg, ледник Болград, lednik Bolgrad, ) is the 7.4 km long and 5.7 km wide glacier on the west side of Owen Ridge in southern Sentinel Range in Ellsworth Mountains, Antarctica, situated south of Brook Glacier and north of Sirma Glacier. It drains west-southwestwards from Mount Allen, Mount Liptak and Mount Southwick, and flows south of Krusha Peak to leave the range and join Bender Glacier east of Gilbert Spur. The glacier is named after the Bulgarian High School of Bolgrad, a major Bulgarian education centre in Ukraine established in 1858. Location Bolgrad Glacier is centred at . US mapping in 1961, updated in 1988. See also * List of glaciers in the Antarctic * Glaciology Maps Vinson Massif. Scale 1:250 000 topographic map. Reston, Virginia: US Geological Survey, 1988. Antarctic Digital Database (ADD).Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly updated. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kornicker Glacier
Kornicker Glacier () is a glacier draining northeastwards from the cirque bounded by Mount Liptak, Mount Southwick, Mount Milton and Mount Mullen in the southern Sentinel Range of the Ellsworth Mountains in Antarctica. The glacier flows along the northwestern side of Petvar Heights and merges with the terminus of the southeast-flowing Thomas Glacier as both glaciers emerge from the range. Kornicker Glacier was named by the Advisory Committee on Antarctic Names (2006) after Louis S. Kornicker, a research zoologist at the Department of Invertebrate Zoology (Crustacea), National Museum of Natural History, Smithsonian Institution, 1964–2006, and a member of the Board of Associated Editors, Antarctic Research Series, American Geophysical Union, 1978–90. See also * List of glaciers in the Antarctic * Glaciology Glaciology (; ) is the scientific study of glaciers, or more generally ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth scien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sirma Glacier
Sirma Glacier ( bg, ледник Сирма, lednik Sirma, ) is the long and wide glacier on the west side of Owen Ridge in southern Sentinel Range, Ellsworth Mountains in Antarctica, situated south of Bolgrad Glacier, and flowing west-southwestwards from Mount Southwick, Mount Milton and Mount Inderbitzen to leave the range and join Nimitz Glacier northwest of Modren Peak. The glacier is named after the Bulgarian woman rebel leader Sirma Voyvoda (1773-1858). Location Sirma Glacier is centred at . US mapping in 1961, updated in 1988. See also * List of glaciers in the Antarctic * Glaciology Glaciology (; ) is the scientific study of glaciers, or more generally ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth science that integrates geophysics, geology, physical geography, geomorphology, c ... Maps Vinson Massif. Scale 1:250 000 topographic map. Reston, Virginia: US Geological Survey, 1988. Antarctic Digital Database (AD ... [...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 hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
