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Edge Glacier
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 Davis Valley () is an ice-free valley just east of Floridas Ridge in north-east Dufek Massif, in the Pensacola Mountains, Antarctica. Mapping and name Davis Valley was mapped by the United St ... [...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. 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 in 1947–68 and includes areas claimed by the United Kingdom, Chile and Argentina. History On the occasion of a visit by 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 Territory had been named Queen Elizabeth Land after The Queen. The Secretary of State for Foreign and Com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dufek Massif
The Dufek Massif () is a rugged, largely snow-covered massif long, standing west of the Forrestal Range in the northern part of the Pensacola Mountains, Antarctica. Discovery and name The Dufek Massif was discovered and photographed on January 13, 1956, on a transcontinental patrol plane flight of United States Navy Operation Deep Freeze from McMurdo Sound to the vicinity of the Weddell Sea and return. It was named by the United States Advisory Committee on Antarctic Names (US-ACAN) for Rear Admiral George J. Dufek United States Navy, who was in direct operational command of United States Navy Task Force 43 during that operation. The entire Pensacola Mountains were mapped by the United States Geological Survey (USGS) in 1967 and 1968 from ground surveys and U.S. Navy tricamera aerial photographs taken in 1964. Location The Dufek Massif runs southwest-northeast in the northwest of the Pensalcola Mountains. It is to the east of the mouth of the Foundation Ice Stream, where ... [...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, Antarctica. Discovery and name The Forrestal Range was discovered and photographed on 13 January 1956 on a transcontinental patrol plane flight of United States Navy Operation Deep Freeze I from McMurdo Sound to the vicinity of the Weddell Sea and return. It was named by the United States Advisory Committee on Antarctic Names (US-ACAN) after , first supercarrier of the U.S. Navy. The entire Pensacola Mountains were mapped by United States Geological Survey (USGS) in 1967 and 1968 from United States Navy tricamera aerial photographs taken in 1964. Location The Forrestal Range extends in a north-northeast direction along the west side of the Support Force Glacier. The Median Snowfield is to its south and the Sallee Snowfield to its west, separating it from the Dufek Massif. The Ford Ice Piedmont is to its north. Major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pensacola Mountains
The Pensacola Mountains () are a large group of mountain ranges and peaks that extend in a northeast–southwest direction in the Transantarctic Mountains System, Queen Elizabeth Land region of Antarctica. They comprise the 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. Discovery and naming The Pensacola Mountains were 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. They were named by the United States Advisory Committee on Antarctic Names (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 United St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), founded as the Geological Survey, is an agency of the U.S. Department of the Interior whose work spans the disciplines of biology, geography, geology, and hydrology. The agency was founded on March 3, 1879, to study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The agency also makes maps of planets and moons, based on data from U.S. space probes. The sole scientific agency of the U.S. Department of the Interior, USGS is a fact-finding research organization with no regulatory responsibility. It is headquartered in Reston, Virginia, with major offices near Lakewood, Colorado; at the Denver Federal Center; and in NASA Research Park in California. In 2009, it employed about 8,670 people. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on its hundredth anniversary, was "Earth Science in the Pub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Navy
The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 million tons in 2021. It has the world's largest aircraft carrier fleet, with List of aircraft carriers in service, eleven in service, one undergoing trials, two new carriers under construction, and six other carriers planned as of 2024. With 336,978 personnel on active duty and 101,583 in the Ready Reserve, the U.S. Navy is the third largest of the United States military service branches in terms of personnel. It has 299 deployable combat vessels and about 4,012 operational aircraft as of 18 July 2023. The U.S. Navy is one of six United States Armed Forces, armed forces of the United States and one of eight uniformed services of the United States. The United States Navy traces its origins to the Continental Navy, which was established during ... [...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 name of English origin, derived from the Old English ''Rædwulf'' and Old High German ''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 . * 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. First name Middle Ages * Ralph the Timid (died 1057), pre-Conquest Norman earl of Hereford, England * 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Davis Valley
Davis Valley () is an ice-free valley just east of Floridas Ridge in north-east Dufek Massif, in the Pensacola Mountains, Antarctica. Mapping and name Davis Valley was mapped by the United States Geological Survey (USGS) from surveys and United States Navy air photos in 1956–66. It was named by the United States Advisory Committee on Antarctic Names (US-ACAN) for Edward H. Davis, a construction mechanic with the Ellsworth Station winter party in 1957. Location David Valley is towards the northeast of the Dufek Massif, between Jaeger Table to the southwest and Boyd Escarpment to the northeast. The Ford Ice Piedmont is to the north and the Sallee Snowfield is to the south. Features include Preslik Spur, Clemons Spur, Edge Glacier, Forlidas Ridge, Forlidas Pond and Wujeck Ridge. 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 val ... [...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 Gabb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foundation Ice Stream
Foundation Ice Stream () is a major ice stream in the Pensacola Mountains of Antarctica. 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. Exploration and name The United States Geological Survey (USGS) mapped the stream from surveys and United States Navy air photos, 1956–66. The United States Advisory Committee on Antarctic Names (US-ACAN) named the stream in recognition of the National Science Foundation, which provided major support to the U.S. Antarctic Research Program during this period. Course File:Thomas Hills USGS.jpg, Head of the ice stream File:C83060s1 Ant.Map Blackburn Nunatak.jpg, west of mid-section File:C83052s5 Schmidt Hills.jpg, east of mid-section File:C82052s5 Ant.Map Cordiner Peaks.jpg, Mouth of the ice stream The Foundation Ice Stream originates to the west of the Patuxent Range. It flows northwest past the Rambo Nunataks to the north and T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
