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Boyd Escarpment
The Boyd Escarpment () is a rock and snow escarpment which extends northeast for from Wujek Ridge, in the Dufek Massif, Pensacola Mountains, Antarctica. It includes Bennett Spur, Cox Nunatak and Rankine Rock. Name The Boyd Escarpment was named in 1979 by the United States Advisory Committee on Antarctic Names (US-ACAN) after Walter W. Boyd, Jr., a U.S. International Geophysical Year glaciologist who wintered at Little America, 1957; geologist, United States Geological Survey (USGS), for three summers in the Pensacola Mountains, 1962–66. Location The Boyd Escarpment is the northern part of the Dufek Massif, facing the Ford Ice Piedmont to the north, with the Sallee Snowfield to its south. It is east of Davis Valley. Features include, from west to east, Bennett Spur, Cox Nunatak and Rankine Rock. Features Bennett Spur . A rock spur between Wujek Ridge and Cox Nunatak. Named by US-ACAN in 1979 after David W. Bennett who, with Robin Worcester, comprised the first of the a ... [...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] |
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] |
Escarpment
An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations. Due to the similarity, the term '' scarp'' may mistakenly be incorrectly used interchangeably with ''escarpment.'' ''Escarpment'' referring to the margin between two landforms, and ''scarp'' referring to a cliff or a steep slope. In this usage an escarpment is a ridge which has a gentle slope on one side and a steep scarp on the other side. More loosely, the term ''scarp'' also describes a zone between a coastal lowland and a continental plateau which shows a marked, abrupt change in elevation caused by coastal erosion at the base of the plateau. Formation and description Scarps are generally formed by one of two processes: either by differential erosion of sedimentary rocks, or by movement of the Earth's crust at a geologic fault. The first process is the more common type: the escarpment is a transition from one seri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wujek Ridge
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 value for t ... [...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] |
International Geophysical Year
The International Geophysical Year (IGY; ), also referred to as the third International Polar Year, was an international scientific project that lasted from 1 July 1957 to 31 December 1958. It marked the end of a long period during the Cold War when scientific interchange between East and West had been seriously interrupted. Sixty-seven countries participated in IGY projects, although one notable exception was the mainland China, People's Republic of China, which was protesting against the participation of the Republic of China (Taiwan). East and West agreed to nominate the Belgian Marcel Nicolet as secretary general of the associated international organization. The IGY encompassed fourteen Earth science disciplines: Auroral light, aurora, airglow, cosmic rays, Earth's magnetic field, geomagnetism, gravity, ionosphere, ionospheric physics, longitude and latitude determinations (precision mapping), meteorology, oceanography, Ionizing radiation, nuclear radiation, glaciology, seismo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little America (exploration Base)
Little America was a series of Antarctica, Antarctic exploration bases from 1929 to 1958, located on the Ross Ice Shelf, south of the Bay of Whales. They were built on ice that is moving very slowly, the relative location on the ice sheet, has moved and eventually breaks off into an iceberg. The geographic location has new ice that has shifted to this location, and is technically over the open water. The coordinates are approximate. Little America I The first base in the series was established in January 1929 by Richard E. Byrd, Richard Byrd, and was abandoned in 1930. This was where the film ''With Byrd at the South Pole'' (1930), about Byrd's trip to the South Pole, was filmed. Little America II Little America II was established in 1934, some above the site of the original base, with some of the original base accessed via tunnel. This base was briefly set adrift in 1934, but the iceberg fused to the main glacier. During the 1934–1935 expedition, many souvenir letters ... [...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] |
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] |
Ford Ice Piedmont
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] |
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] |
