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Sallee Snowfield
Sallee Snowfield () is a large snowfield between the Dufek Massif and northern Forrestal Range in the Pensacola Mountains, Antarctica. Mapping and name The Sallee Snowfield was mapped by United States Geological Survey (USGS) from surveys and United States Navy air photos, 1956–66. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lieutenant Commander Ralph W. Sallee, Assistant Meteorological Officer on the staff of the Commander, United States Naval Support Force, Antarctica, in 1967 and 1968. Location The Sallee Snowfield is between the Dufek Massif to the northwest and the Forrestal Range to the southeast. In the north it descends to the Ford Ice Piedmont. The Petite Rocks are in the east of the snowfield. A glacier drains north from the snowfield past the Davis Valley in the northeastern Dufek Massif to the Ford Ice Piedmont. The Edge Glacier extends from the snowfield into the Davis Valley for about . Rocks of the Dufek Intrusion are visible in the Dufuk Massif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen Elizabeth Land
Queen Elizabeth Land is a portion of mainland Antarctica named by the government of the United Kingdom and claimed as part of the British Antarctic Territory, which is the largest of the 14 British Overseas Territories. Situated south of Weddell Sea and between longitudes 20°W and 80°W, stretching from Filchner-Ronne Ice Shelf to the South Pole. It is bordered by Zumberge Coast of Ellsworth Land to the West and by Hercules Inlet to the Northwest. To the Northeast, circle of latitude 82°S is the dividing line against Coats Land. The area of Queen Elizabeth Land was unnamed until 2012, though most of it was unofficially known as Edith Ronne Land#Past name usage, Edith Ronne Land in 1947–68 and includes areas claimed by the United Kingdom, Chile and Argentina. History On the occasion of a visit by Elizabeth II, Queen Elizabeth II to the British Foreign and Commonwealth Office in London on 18 December 2012, it was announced there that a area of the British Antarctic Terr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dufek Massif
Dufek Massif, Augusto Pinochet Massif or Santa Teresita Massif is a rugged, largely snow-covered massif long, standing west of the Forrestal Range in the northern part of the Pensacola Mountains. It was discovered and photographed on January 13, 1956, on a transcontinental patrol plane flight of U.S. Navy Operation Deep Freeze from McMurdo Sound to the vicinity of the Weddell Sea and return, and named by the Advisory Committee on Antarctic Names for Rear Admiral George J. Dufek,Dufek Coast, Dufek Head, and Dufek Mountain are also named for Dufek. U.S. Navy, who was in direct operational command of U.S. Navy Task Force 43 during that operation. The entire Pensacola Mountains were mapped by the U.S. Geological Survey in 1967 and 1968 from ground surveys and U.S. Navy tricamera aerial photographs taken in 1964. The range covers and its highest point is England Peak, at . Other notable local terrain features include Kelley Spur, a rock spur east of Spear Spur on the south side of Du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forrestal Range
The Forrestal Range () is a largely snow-covered mountain range, about long, standing east of Dufek Massif and the Neptune Range in the Pensacola Mountains of Antarctica. Discovered and photographed on 13 January 1956 on a transcontinental patrol plane flight of U.S. Navy Operation Deep Freeze I from McMurdo Sound to the vicinity of the Weddell Sea and return. Named by the US-ACAN after , first supercarrier of the U.S. Navy. The entire Pensacola Mountains were mapped by USGS in 1967 and 1968 from U.S. Navy tricamera aerial photographs taken in 1964. Key mountains * Abele Spur () is a rock spur that descends west from Mount Lechner toward the Herring Nunataks. It was named by US-ACAN at the suggestion of Arthur B. Ford for Gunars Abele, civil engineer on the 1973–1974 United States Antarctic Research Program (USARP)-CRREL survey in this area. * Blount Nunatak () is a prominent nunatak, , standing southwest of Mount Lechner on the west side of Forrestal Range. Discovered and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pensacola Mountains
The Pensacola Mountains are a large group of mountain ranges of the Transantarctic Mountains System, located in the Queen Elizabeth Land region of Antarctica. Geography They extend 450 km (280 mi) in a NE-SW direction. Subranges of the Pensacola Mountains include: Argentina Range, Forrestal Range, Dufek Massif, Cordiner Peaks, Neptune Range, Patuxent Range, Rambo Nunataks and Pecora Escarpment. These mountain units lie astride the extensive Foundation Ice Stream and Support Force Glacier which drain northward to the Ronne Ice Shelf. ;Naming Discovered and photographed on 13 January 1956 in the course of a transcontinental nonstop plane flight by personnel of United States Navy Operation Deep Freeze I from McMurdo Sound to Weddell Sea and return. Named by US-ACAN for the U.S. Naval Air Station, Pensacola, Florida, in commemoration of the historic role of that establishment in training aviators of the U.S. Navy. The mountains were mapped in detail by USGS from surveys ... [...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] |
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage of its active battle fleet alone exceeding the next 13 navies combined, including 11 allies or partner nations of the United States as of 2015. It has the highest combined battle fleet tonnage (4,635,628 tonnes as of 2019) and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the United States Navy is the third largest of the United States military service branches in terms of personnel. It has 290 deployable combat vessels and more than 2,623 operational aircraft . The United States Navy traces its origins to the Continental Navy, which was established during the American Revo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advisory Committee On Antarctic Names
The Advisory Committee on Antarctic Names (ACAN or US-ACAN) is an advisory committee of the United States Board on Geographic Names responsible for recommending commemorative names for features in Antarctica. History The committee was established in 1943 as the Special Committee on Antarctic Names (SCAN). It became the Advisory Committee on Antarctic Names in 1947. Fred G. Alberts was Secretary of the Committee from 1949 to 1980. By 1959, a structured nomenclature was reached, allowing for further exploration, structured mapping of the region and a unique naming system. A 1990 ACAN gazeeter of Antarctica listed 16,000 names. Description The United States does not recognise territorial boundaries within Antarctica, so ACAN assigns names to features anywhere within the continent, in consultation with other national nomenclature bodies where appropriate, as defined by the Antarctic Treaty System. The research and staff support for the ACAN is provided by the United States Geologi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ralph W
Ralph (pronounced ; or ,) is a male given name of English, Scottish and Irish origin, derived from the Old English ''Rædwulf'' and Radulf, cognate with the Old Norse ''Raðulfr'' (''rað'' "counsel" and ''ulfr'' "wolf"). The most common forms are: * Ralph, the common variant form in English, which takes either of the given pronunciations. * Rafe, variant form which is less common; this spelling is always pronounced , as are all other English spellings without "l". * Raife, a very rare variant. * Raif, a very rare variant. Raif Rackstraw from H.M.S. Pinafore * Ralf, the traditional variant form in Dutch, German, Swedish, and Polish. * Ralfs, the traditional variant form in Latvian. * Raoul, the traditional variant form in French. * Raúl, the traditional variant form in Spanish. * Raul, the traditional variant form in Portuguese and Italian. * Raül, the traditional variant form in Catalan. * Rádhulbh, the traditional variant form in Irish. Given name Middle Ages * Ralp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C82045s1 Ant
C8, C08, C.VIII or C-8 may refer to: Transportation Aviation * AEG C.VIII, a World War I German armed reconnaissance aircraft * AGO C.VIII, a World War I German reconnaissance aircraft * Cierva C.8, a 1926 Spanish experimental autogyro * De Havilland Canada C-8 Buffalo, a military transport aircraft of the 1960s * Fairchild C-8, a military transport aircraft of the 1930s * Fokker C.VIII, a 1928 Dutch reconnaissance aircraft * Chicago Express Airlines (defunct) IATA code Automotive * Citroën C8, a brand of minivan * Sauber C8, a 1985 racing car * Spyker C8, a sportscar produced by car manufacturer Spyker Cars * Eighth generation Chevrolet Corvette (C8) Nautical * HMS ''C8'', a 1907 C-class submarine of the Royal Navy * USS ''Raleigh'' (C-8), an 1892 protected cruiser of the United States Navy Rail * LSWR C8 class, a London and South Western Railway locomotive class * C-8 (Cercanías Madrid) * LNER Class C8, a class of 2 4-cylinder compound locomotives Spac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Davis Valley
Davis Valley is an ice-free valley just east of Forlidas Ridge in north-east Dufek Massif, in the Pensacola Mountains of Queen Elizabeth Land, Antarctica. It was mapped by the United States Geological Survey from surveys and U.S. Navy air photos in 1956–66, and was named by the Advisory Committee on Antarctic Names for Edward H. Davis, a construction mechanic with the Ellsworth Station winter party, 1957. Antarctic Specially Protected Area Davis Valley and other, adjacent ice-free valleys, forms one of the most southerly ‘dry valley’ systems on the continent and has exceptional scientific value for the interpretation of past glacial events and climate in this part of Antarctica. With Forlidas Pond some 500 m away, the site is protected under the Antarctic Treaty System as Antarctic Specially Protected Area An Antarctic Specially Protected Area (ASPA) is an area on the continent of Antarctica, or on nearby islands, which is protected by scientists and several different int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dufek Intrusion
The Dufek Intrusion is a mafic layered intrusion that was emplaced into present-day Antarctica approximately 183 million years ago. It comprises two outcropping sections called the Dufek Massif and the Forrestal Range that are thought to be connected beneath the Sallee Snowfield. The Dufek intrusion is associated with large volumes of Jurassic tholeiitic magmatism associated with the breakup of Gondwana. This magmatism stretched from northern Victoria Land to Dronning Maud Land and onwards into Africa and Australia. Stratigraphy within the intrusion includes the 1.8 km thick Dufek Massif section and associated nanataks. This massif section is composed of the 230 m thick Walker Anorthosite, with laminated plagioclase cumulates, overlain by the Aughenbaugh Gabbro. This gabbro consists of laminated plagioclase with and the augite-pigeonite pyroxene cumulus. The upper portion of the intrusion consists of the 1.7 km thick Forrestal Range section, with the Saratoga G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foundation Ice Stream
Foundation Ice Stream is a major ice stream in Antarctica's Pensacola Mountains. The ice stream drains northward for along the west side of the Patuxent Range and the Neptune Range to enter the Ronne Ice Shelf westward of Dufek Massif. The United States Geological Survey mapped the stream from surveys and U.S. Navy air photos, 1956–66. The Advisory Committee on Antarctic Names named the stream in recognition of the National Science Foundation, which provided major support to the U.S. Antarctic Research Program during this period. 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, climato ... References Ice streams of Queen Elizabeth Land Filchner-Ronne Ice Shelf {{Glaciology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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