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Serpent Nunatak
Serpent Nunatak () is a nunatak which is seen in the shape of a reverse letter S, rising to about just west of Tufts Pass lying within the Nichols Snowfield, in the northern portion of Alexander Island, Antarctica. It is situated northeast of Lizard Nunatak and south of Lesnovo Hill. The feature was descriptively named by United Kingdom Antarctic Place-Names Committee in 1977 because of the nunataks shape, the reverse letter S supposedly resembles a Serpent. See also * Geode Nunataks * Stephenson Nunatak Stephenson Nunatak () is a prominent, pyramid-shaped rock nunatak, rising to about 640 m, which rises 300 m above the surrounding ice at the northwest side of Kirwan Inlet in the southeast part of Alexander Island, Antarctica. Discovered and roug ... * Titan Nunatak Nunataks of Alexander Island {{AlexanderIsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nunatak
A nunatak (from Inuit ''nunataq'') is the summit or ridge of a mountain that protrudes from an ice field or glacier that otherwise covers most of the mountain or ridge. They are also called glacial islands. Examples are natural pyramidal peaks. When rounded by glacial action, smaller rock promontories may be referred to as rognons. The word is of Greenlandic origin and has been used in English since the 1870s. Description The term is typically used in areas where a permanent ice sheet is present and the nunataks protrude above the sheet.J. J. Zeeberg, ''Climate and Glacial History of the Novaya Zemlya Archipelago, Russian Arctic''. pp. 82–84 Nunataks present readily identifiable landmark reference points in glaciers or ice caps and are often named. While some nunataks are isolated, sometimes they form dense clusters, such as Queen Louise Land in Greenland. Nunataks are generally angular and jagged, which hampers the formation of glacial ice on their tops, although snow can a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tufts Pass
Tufts Pass () is a pass extending in an east–west direction between the Rouen Mountains and the Elgar Uplands in the north part of Alexander Island, Antarctica. The mountain pass was probably first sighted from the air and roughly mapped by the British Graham Land Expedition in 1937. Remapped from air photos taken by the Ronne Antarctic Research Expedition in 1947–48, by Searle of the Falkland Islands Dependencies Survey in 1960. Named by the RARE for Tufts University, Medford, Massachusetts, United States, where Dr. Robert Nichols was head of the geology department before joining the RARE. See also * Haffner Pass * Quinault Pass * Whistle Pass Whistle Pass () is a snow pass at about 1,050 m at the head of Sullivan Glacier in north Alexander Island, Antarctica. The pass trends in a NE-SW direction and provides access to and from the upper part of Hampton Glacier. So named by British ... Mountain passes of Alexander Island {{AlexanderIsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nichols Snowfield
Nichols Snowfield () is a snowfield, 22 nautical miles (41 km) long and 8 nautical miles (15 km) wide, bounded by the Rouen Mountains and Elgar Uplands to the east and Lassus Mountains to the west, in the north part of Alexander Island, Antarctica. The snowfield was first sighted from the air and roughly mapped by the British Graham Land Expedition (BGLE) in 1937. Mapped in detail from air photos taken by the Ronne Antarctic Research Expedition (RARE), 1947–48, by Searle of the Falkland Islands Dependencies Survey (FIDS) in 1960. Named by the RARE for Dr. Robert L. Nichols, head of the Department of Geology, Tufts University Tufts University is a private research university on the border of Medford and Somerville, Massachusetts. It was founded in 1852 as Tufts College by Christian universalists who sought to provide a nonsectarian institution of higher learning. ..., and senior scientist of the Ronne expedition. Snow fields of Antarctica Bodies of ice of A ... [...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] |
Lizard Nunatak
Lizard Nunatak () is a nunatak rising to about situated within the Nichols Snowfield, in the northern portion of Alexander Island, Antarctica. It is situated 12 km east by north of Mount Kliment Ohridski and 9 km south-southeast of the summit of Landers Peaks in Sofia University Mountains, and 6.4 km southwest of Serpent Nunatak and 9.38 km north by west of Tegra Nunatak in Rouen Mountains. The feature was so named by the UK Antarctic Place-Names Committee in 1977 from its shape and in association with Serpent Nunatak lying to the northeast. See also * Admirals Nunatak * Gannon Nunataks The Gannon Nunataks () are a notable twin-peaked group of nunataks (about high) and several smaller rock outcrops, located between the northern end of the LeMay Range and the Lully Foothills, situated in the west-central portion of Alexander Is ... * Knott Nunatak References Nunataks of Alexander Island {{AlexanderIsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lesnovo Hill
Lesnovo Hill ( bg, хълм Лесново, ‘Halm Lesnovo’ \'h&lm le-'sno-vo) is the mostly ice-covered hill rising to 1286 mReference Elevation Model of Antarctica. Polar Geospatial Center. University of Minnesota, 2019 at the west extremity of Care Heights in Rouen Mountains, northern Alexander Island in . It surmounts |
United Kingdom 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 the South Georgia and the South Sandwich Islands (SGSSI). Such names are formally approved by the Commissioners of the BAT and SGSSI respectively, and published in the BAT Gazetteer and the SGSSI Gazetteer maintained by the Committee. The BAT names are also published in the international Composite Gazetteer of Antarctica maintained by SCAR. The Committee may also consider proposals for new place names for geographical features in areas of Antarctica outside BAT and SGSSI, which are referred to other Antarctic place-naming authorities, or decided by the Committee itself if situated in the unclaimed sector of Antarctica. Names attributed by the committee * Anvil Crag, named for descriptive features * Anckorn Nunataks, named after J. F. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snake
Snakes are elongated, Limbless vertebrate, limbless, carnivore, carnivorous reptiles of the suborder Serpentes . Like all other Squamata, squamates, snakes are ectothermic, amniote vertebrates covered in overlapping Scale (zoology), scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads (cranial kinesis). To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have evolved elongate bodies without limbs or with greatly reduced limbs about twenty-five times independently via convergent evolution, leading to many lineages of legless lizards. These resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, altho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geode Nunataks
The Geode Nunataks () are a group of small nunataks on the west side of Sibelius Glacier, immediately north of the northern extremity of the Finlandia Foothills, in northeast Alexander Island, Antarctica. They were so named by the UK Antarctic Place-Names Committee in 1977; the nunataks are composed of lava flows with abundant geodes (cavities within the rock containing quartz and calcite crystals). See also * Appalachia Nunataks * Ceres Nunataks * Gannon Nunataks The Gannon Nunataks () are a notable twin-peaked group of nunataks (about high) and several smaller rock outcrops, located between the northern end of the LeMay Range and the Lully Foothills, situated in the west-central portion of Alexander Is ... References Nunataks of Alexander Island {{AlexanderIsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephenson Nunatak
Stephenson Nunatak () is a prominent, pyramid-shaped rock nunatak, rising to about 640 m, which rises 300 m above the surrounding ice at the northwest side of Kirwan Inlet in the southeast part of Alexander Island, Antarctica. Discovered and roughly surveyed in 1940-41 by Finn Ronne and Carl R. Eklund of the United States Antarctic Service. Resurveyed in 1949 by the Falkland Islands Dependencies Survey and named by the United Kingdom Antarctic Place-Names Committee for Alfred Stephenson, surveyor with the British Graham Land Expedition, who led a sledge party south into George VI Sound to about 72S in 1936. There happens to be another landform on Alexander Island which is named after Alfred Stephenson, that being Mount Stephenson, the highest point of Alexander Island rising to 2,987 m. See also * Admirals Nunatak * Atoll Nunataks * Dione Nunataks Further reading * Damien Gildea, Antarctic Peninsula - Mountaineering in Antarctica: Travel Guide' * New Zealand Journal of Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
