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Sickle Mountain
Sickle Mountain is a tall mountain standing on the south side of Clarke Glacier and 14 miles (22 km) east of Cape Berteaux, on the west coast of Graham Land. So named by Finn Ronne Finn Ronne (December 20, 1899 – January 12, 1980) was a Norwegian-born U.S. citizen and Antarctic explorer. Background Finn Ronne was born in Horten, in Vestfold county, Norway. His father, Martin Rønne (1861–1932), was a polar explorer w ... of the East Base of the United States Antarctic Service (USAS), 1939–41, because its peculiar shape was suggestive of that of a sickle. See also * Confluence Cone Mountains of Graham Land Fallières Coast {{FallièresCoast-geo-stub ... [...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 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 isolated summits, but most occur in mountain ranges. Mountains are formed through 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 slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clarke Glacier (Graham Land)
Clarke Glacier is a -wide, -long glacier, located on the west coast of Graham Land in Antarctica. It flows west, along the north side of Sickle Mountain and the Baudin Peaks, to Mikkelsen Bay. It was first surveyed in 1936 by the British Graham Land expedition (BGLE) (1934-1937) under John Rymill. In January 1941, it was traversed near its head by a United States Antarctic Service (USAS) sledge party. The lower reaches of the glacier were surveyed in 1948-1949 by the Falkland Islands Dependencies Survey (FIDS), who named the glacier (decision year 1955). The glacier was named for Louis C. G. Clarke, director of the Fitzwilliam Museum, Cambridge from 1937 to 1946, who "greatly assisted the BGLE." See also * List of glaciers in the Antarctic * Geography of Antarctica * Geology of Antarctica * Glaciology Glaciology (; ) is the scientific study of glaciers, or more generally ice and natural phenomena that involve ice. Glaciology is an interdisciplinary Earth scienc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Berteaux
Cape Berteaux is a cape surmounted by a high rock peak between Mikkelsen Bay and Wordie Ice Shelf on the west coast of Graham Land. The French Antarctic Expedition under Charcot, 1908–1910, originally applied the name Berteaux to an island in essentially this position. The British Graham Land Expedition (BGLE) under Rymill, 1934–1937, identified the feature sighted by Charcot as the cape described above. It is named by Charcot for a Monsieur Berteaux ( ; ; pl. ; ; 1512, from Middle French , literally "my lord") is an honorific title that was used to refer to or address the eldest living brother of the king in the French royal court. It has now become the customary French title of respec ... who helped obtain funds for his expedition. Further reading * Defense Mapping Agency 1992, Sailing Directions (planning Guide) and (enroute) for Antarctica', P 376 External links Cape Berteauxon USGS website Cape Berteauxon AADC website Cape Berteauxon SCAR website ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graham Land
Graham Land is the portion of the Antarctic Peninsula that lies north of a line joining Cape Jeremy and Cape Agassiz. This description of Graham Land is consistent with the 1964 agreement between the British Antarctic Place-names Committee and the US Advisory Committee on Antarctic Names, in which the name "Antarctic Peninsula" was approved for the major peninsula of Antarctica, and the names Graham Land and Palmer Land for the northern and southern portions, respectively. The line dividing them is roughly 69 degrees south. Graham Land is named after Sir James R. G. Graham, First Lord of the Admiralty at the time of John Biscoe's exploration of the west side of Graham Land in 1832. It is claimed by Argentina (as part of Argentine Antarctica), Britain (as part of the British Antarctic Territory) and Chile (as part of the Chilean Antarctic Territory). Graham Land is the closest part of Antarctica to South America. Thus it is the usual destination for small ships taking pay ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Finn Ronne
Finn Ronne (December 20, 1899 – January 12, 1980) was a Norwegian-born U.S. citizen and Antarctic explorer. Background Finn Ronne was born in Horten, in Vestfold county, Norway. His father, Martin Rønne (1861–1932), was a polar explorer who served in Roald Amundsen's successful expedition to the South Pole. Ronne received his education in engineering at Horten Technical College. In 1923 Finn Ronne immigrated to the U.S. and gained citizenship in 1929. After working at Westinghouse Electric Corporation for some years, he took part in two of Richard E. Byrd's expeditions to the South Pole, and in 1939 Ronne served as Byrd's executive officer helping discover one thousand miles of new coastline. After serving several years in the United States Navy, gaining the rank of captain, Ronne returned to Antarctica in the 1940s, with support of the American Geographical Society as the leader of the Ronne Antarctic Research Expedition. From 1946 to 1948 his team mapped and explored ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Base
East Base on Stonington Island is the oldest American research station in Antarctica, having been commissioned by Franklin D. Roosevelt in 1939. The station was built as part of two US wintering expeditions – United States Antarctic Service Expedition (1939–1941) and Ronne Antarctic Research Expedition (1947–1948). The base covers from north to south and from east to west. The base was accorded the status of one of the Historic Sites and Monuments in Antarctica on 7 May 2004. First expedition The Antarctic Service Expedition was the first government-funded expedition of Admiral Richard E. Byrd (his first two expeditions in 1928–1930 and 1933–1935 were privately funded). East Base was built using Army knockdown buildings and a crew of 23 led by Richard Black, after Admiral Byrd had to return to Washington on the USS ''Bear''. The war time pressures and pack-ice in the bay which prevented ship movement led to the evacuation of the base in 1941 by air. Second exped ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Antarctic Service
The United States Antarctic Program (or USAP; formerly known as the United States Antarctic Research Program or USARP and the United States Antarctic Service or USAS) is an organization of the United States government which has presence in the Antarctica continent. Founded in 1959, the USAP manages all U.S. scientific research and related logistics in Antarctica as well as aboard ships in the Southern Ocean. United States Antarctic Program The United States established the U.S. Antarctic Research Program (USARP) in 1959—the name was later changed to the U.S. Antarctic Program—immediately following the success of the International Geophysical Year (IGY). Today, the National Science Foundation (NSF) has a Presidential Mandate to manage the United States Antarctic Program, through which it operates three year-round research stations and two research vessels, coordinates all U.S. science on the southernmost continent, and works with other federal agencies, the U.S. military, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sickle
A sickle, bagging hook, reaping-hook or grasshook is a single-handed agricultural tool designed with variously curved blades and typically used for harvesting, or reaping, grain crops or cutting succulent forage chiefly for feeding livestock, either freshly cut or dried as hay. Falx was a synonym but was later used to mean any of a number of tools that had a curved blade that was sharp on the inside edge such as a scythe. Since the beginning of the Iron Age hundreds of region-specific variants of the sickle have evolved, initially of iron and later steel. This great diversity of sickle types across many cultures can be divided into smooth or serrated blades, both of which can be used for cutting either green grass or mature cereals using slightly different techniques. The serrated blade that originated in prehistoric sickles still dominates in the reaping of grain and is even found in modern grain-harvesting machines and in some kitchen knives. History Pre-Neolithic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Confluence Cone
Confluence Cone () is a small but conspicuous nunatak southeast of Sickle Mountain, near the west coast of the Antarctic Peninsula. It was photographed from the air by the Ronne Antarctic Research Expedition in 1947. It was surveyed from the ground by the Falkland Islands Dependencies Survey in 1958, and so named by the UK Antarctic Place-Names Committee The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and ... because of its position at the confluence of several glaciers which merge with Hariot Glacier to flow into the Wordie Ice Shelf. References Nunataks of Graham Land Fallières Coast {{FallièresCoast-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Graham Land
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 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 isolated summits, but most occur in mountain ranges. Mountains are formed through 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 slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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