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Mount Huckle
Mount Huckle is a mainly ice-covered mountain, high, near the northern end of the Douglas Range in eastern Alexander Island, 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 contine .... It rises south-southeast of Mount Spivey on the west side of Toynbee Glacier and is inland from George VI Sound. Mount Huckle is the fourth highest mountain of Alexander Island, proceeded by Mount Cupola and succeeded by Mount Paris in the nearby Rouen Mountains. The mountain was possibly first seen in 1909 by the French Antarctic Expedition, 1908–10, French Antarctic Expedition under Jean-Baptiste Charcot, but not recognized as part of Alexander Island. It was photographed from the air in 1936–37 by the British Graham Land Expedition under John Riddoch Rymill, and surveyed from the ground ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Island
Alexander Island, which is also known as Alexander I Island, Alexander I Land, Alexander Land, Alexander I Archipelago, and Zemlja Alexandra I, is the largest island of Antarctica. It lies in the Bellingshausen Sea west of Palmer Land, Antarctic Peninsula from which it is separated by Marguerite Bay and George VI Sound. The George VI Ice Shelf entirely fills George VI Sound and connects Alexander Island to Palmer Land. The island partly surrounds Wilkins Sound, which lies to its west.Stewart, J. (2011) ''Antarctic An Encyclopedia'' McFarland & Company Inc, New York. 1776 pp. . Alexander Island is about long in a north–south direction, wide in the north, and wide in the south. Alexander Island is the second-largest uninhabited island in the world, after Devon Island. History Alexander Island was discovered on January 28, 1821, by a Russian expedition under Fabian Gottlieb von Bellingshausen, who named it Alexander I Land for the reigning Tsar Alexander I of Russia. Wha ... [...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] |
Douglas Range
The Douglas Range () is a sharp-crested range, with peaks rising to 3,000 metres, extending 120 km (75 mi) in a northwest–southeast direction from Mount Nicholas to Mount Edred and forming a steep east escarpment of Alexander Island within the British Antarctic Territory, overlooking the north part of George VI Sound. Geography History Mount Nicholas was seen in 1909 from a distance by the French Antarctic Expedition under Charcot. The full extent of the range was observed by Lincoln Ellsworth on his trans-Antarctic flight of November 23, 1935, and its east escarpment first roughly mapped from air photos taken on that flight by W.L.G. Joerg. The east face of the range was roughly surveyed from George VI Sound by the British Graham Land Expedition (BGLE) in 1936 and resurveyed by the Falkland Islands Dependencies Survey (FIDS) in 1948–50. The entire range, including the west slopes, was mapped in detail from air photos taken by the Ronne Antarctic Research ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subduction Zone
Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle. A region where this process occurs is known as a subduction zone, and its surface expression is known as an arc-trench complex. The process of subduction has created most of the Earth's continental crust. Rates of subduction are typically measured in centimeters per year, with the average rate of convergence being approximately two to eight centimeters per year along most plate boundaries. Subduction is possible because the cold oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle underlying the cold, rigid lithosphere. Once initiated, stable subduction is driven mostly by the negative buoyancy of the dens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Spivey
Mount Spivey () is a flat-topped, mainly ice-covered mountain, rising to about 2,135 m, standing on the west side of Toynbee Glacier and 9 nautical miles (17 km) south of Mount Nicholas. It is situated near the northern extremity of the Douglas Range of the northeast portion of Alexander Island, Antarctica. First photographed from the air in 1937 by the British Graham Land Expedition under Rymill, Mount Spivey was later surveyed from the ground in 1948 by the Falkland Islands Dependencies Survey and named for Robert E. Spivey, general assistant at Stonington Island, who took part as a member in the Falkland Islands Dependencies Survey sledge journey to George VI Sound in 1949. See also * Mount Huckle Mount Huckle is a mainly ice-covered mountain, high, near the northern end of the Douglas Range in eastern Alexander Island, Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south ... * Mount Sanderson * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toynbee Glacier
Toynbee Glacier () is a glacier situated in the northeast portion of Alexander Island, Antarctica, extending 17 nautical miles (31 km) long and 5 nautical miles (9 km) wide, lying between Mount Huckle, Mount Spivey and Mount Stephenson of the northern portion of the Douglas Range on the west and Mount Tyrrell and Mount Tilley on the east. It flows north from the east face of Mount Stephenson into the George VI Ice Shelf that occupies George VI Sound. The glacier was first photographed from the air in 1937 by the British Graham Land Expedition under Rymill. Surveyed in 1948 by the Falkland Islands Dependencies Survey and named for Patrick A. Toynbee, FIDS air pilot at Stonington Island in 1948 and 1949. Further reading * Defense Mapping Agency 1992, Sailing Directions (planning Guide) and (enroute) for Antarctica', P 377 * Jane G. Ferrigno, Alison J. Cook, Amy M. Mathie, Richard S. Williams, Jr., Charles Swithinbank, Kevin M. Foley, Adrian J. Fox, Janet W. Thomson, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George VI Sound
George VI Sound or Canal Jorge VI or Canal Presidente Sarmiento or Canal Seaver or King George VI Sound or King George the Sixth Sound is a major bay/ fault depression, 300 miles (483 km) long and mainly covered by a permanent ice shelf. It is in the shape of the letter J without any upper bar. It lines the east and south shores of Alexander Island, separating it from the vestigial, quite small, Wordie Ice Shelf and Palmer Land (the south-west of the Antarctic Peninsula) and the north-facing "English Coast". A quite central point of it is . Various lakes adjoin; these receive large amounts of melt ice from the George VI Ice Shelf. These include Hodgson, Moutonee and Ablation Lakes. Several glaciers flow eastward into the sound from the east interior of Alexander Island, the vast majority of these glaciers are south of Planet Heights, where all of these glaciers are named after moons, satellites and planets of the Solar System in the same vein as the Heights, named by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Cupola
Mount Cupola () is a dome-shaped mountain, high, marking the southeastern limit of the Rouen Mountains in the northern part of Alexander Island. It was first photographed from the air by the British Graham Land Expedition in 1937, and surveyed in 1948 by the Falkland Islands Dependencies Survey. The descriptive name was given by the UK Antarctic Place-Names Committee in 1960. Mount Cupola is the fifth-highest point of Alexander Island, succeeded by Mount Huckle in the Douglas Range The Douglas Range () is a sharp-crested range, with peaks rising to 3,000 metres, extending 120 km (75 mi) in a northwest–southeast direction from Mount Nicholas to Mount Edred and forming a steep east escarpment of Alexander Island .... See also * Mount Calais * Mount Paris * Mount Spivey Further reading * Damien Gildea, Antarctic Peninsula - Mountaineering in Antarctica: Travel Guide' * Defense Mapping Agency 1992, Sailing Directions (planning Guide) and (enroute) for Antar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Paris
Mount Paris () is a conspicuous mountain, about 2,800 m, 4 nautical miles (7 km) southeast of Mount Bayonne situated in the northern portion of Alexander Island, Antarctica. The mountain was first mapped by the French Antarctic Expedition, 1908–10, under Charcot, who named it for the French capital, Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), ma .... The mountain was resighted in 1936 by the British Graham Land Expedition (BGLE) and charted as mountains, but subsequent study of air photos taken by the Ronne Antarctic Research Expedition (RARE), 1947–48, has caused the name to be restricted to this single mountain. Mount Paris is the third-highest peak of Alexander Island, while Mount Egbert remains second standing at 2,850 m in height. References * Mount ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rouen Mountains
The Rouen Mountains () are a prominent mountain range, reaching to about 2,800 m and extending 35 miles (60 km) NW-SE from Mount Bayonne to Care Heights and Mount Cupola, in north Alexander Island, Antarctica. This mountain range is known to occupy some of the highest peaks of Alexander Island, much like the nearby Douglas Range. Mount Paris is the highest point of the Rouen Mountains, exceeding 2,800 m approximately. The mountains were first mapped by the French Antarctic Expedition of 1908–10, under J. B. Charcot and named by him after the French city of Rouen. Charcot indicated a break in these mountains south of Mount Paris, but air photos taken by the Ronne Antarctic Research Expedition of 1947–48, as interpreted by Searle of the Falkland Islands Dependencies Survey (FIDS) indicate that the mountains are continuous southeast to Mount Cupola. They were partly surveyed by FIDS in 1948 and further delineated from U.S. satellite imagery of January 1974 and February 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Antarctic Expedition, 1908–10
The French Antarctic Expedition is any of several French expeditions in Antarctica. First expedition In 1772, Yves-Joseph de Kerguelen-Trémarec and the naturalist Jean Guillaume Bruguière sailed to the Antarctic region in search of the fabled Terra Australis. Kerguelen-Trémarec took possession of various Antarctic territories for France, including what would later be called the Kerguelen Islands. In Kerguelen-Trémarec's report to King Louis XV, he greatly overestimated the value of the Kerguelen Islands. The King sent him on a second expedition to Kerguelen in late 1773. When it became clear that these islands were desolate, useless, and not the Terra Australis, he was sent to prison. Second expedition In 1837, during an 1837–1840 expedition across the deep southern hemisphere, Captain Jules Dumont d'Urville sailed his ship ''Astrolabe'' along a coastal area of Antarctica which he later named Adélie Land, in honor of his wife. During the Antarctic part of this exp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jean-Baptiste Charcot
Jean-Baptiste-Étienne-Auguste Charcot (15 July 1867 – 16 September 1936), born in Neuilly-sur-Seine, was a French scientist, medical doctor and polar scientist. His father was the neurologist Jean-Martin Charcot (1825–1893). Life Jean-Baptiste Charcot was appointed leader of the French Antarctic Expedition with the ship ''Français'' exploring the west coast of Graham Land from 1904 until 1907. The expedition reached Adelaide Island in 1905 and took pictures of the Palmer Archipelago and Loubet Coast. From 1908 until 1910, another expedition followed with the ship '' Pourquoi Pas ?'', exploring the Bellingshausen Sea and the Amundsen Sea and discovering Loubet Land, Marguerite Bay, Mount Boland and Charcot Island, which was named after his father, Jean-Martin Charcot. anhere./ref> He named Hugo Island after Victor Hugo, the grandfather of his wife, Jeanne Hugo. Later on, Jean-Baptiste Charcot explored Rockall in 1921 and Eastern Greenland and Svalbard from 1925 until 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
