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List Of Volcanoes In Antarctica ...
This is a list of volcanoes in Antarctica. Table A 2017 study claimed to have found 138 volcanoes, of which 91 were previously unknown. Some volcanoes are entirely under the ice sheet. Unconfirmed volcanoes are not included in the table below. See also * Geology of Antarctica * Lists of volcanoes References Bibliography * Volcano World Web site {{Antarctica Antarctica * Volcanoes A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are ... [...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] |
Coulman Island
Coulman Island is an ice-covered island in the Ross Sea, located southeast of Cape Jones, Victoria Land, Antarctica. It is long, wide and in elevation. Emperor penguins inhabit this island. It was discovered in 1841 by Sir James Clark Ross who named it for his father-in-law, Thomas Coulman. A notable landmark of this island is Cape Anne, the south-easternmost point of the island, so named by Sir James Clark Ross for his wife. Cape Wadworth is the northernmost point of the island. The island is composed of several overlapping shield volcanoes that form part of the Hallett Volcanic Province of the McMurdo Volcanic Group. A wide and deep caldera called the Hawkes Heights can be found on the south end of the island. Important Bird Area (IBA) The island was founded in 1841, however, the island is currently recognized as an important bird area because it holds a huge super-colony of emperor penguins and is the largest colony of this species in the world. However, scientists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hudson Mountains
The Hudson Mountains are a mountain range in western Ellsworth Land just east of Cranton Bay and Pine Island Bay at the eastern extremity of Amundsen Sea. They are of volcanic origin, consisting of low scattered mountains and nunataks that protrude through the West Antarctic Ice Sheet. The Hudson Mountains are bounded on the north by Cosgrove Ice Shelf and on the south by Pine Island Glacier. Geology The Hudson Mountains contain slightly eroded parasitic cones that overlie three extensively eroded Miocene stratovolcanoes: Mount Manthe, Teeters Nunatak and Mount Moses. Potential steam was reported in 1974 and an unconfirmed report of an eruption detected by satellite was made in 1985, indicating that the Hudson Mountains may be volcanically active. Volcanic activity of the Hudson Mountains has produced predominantly subaerial basaltic lava flows, although subglacial or subaqueous tuffs and lava flows have also been noted. A tephra layer deposited from a subglacial eruption has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Hampton
Mount Hampton is a shield volcano with a circular ice-filled caldera. It is a twin volcano with Whitney Peak to the northwest and has erupted phonolite rocks. It is the northernmost of the volcanoes which comprise the Executive Committee Range in Marie Byrd Land, Antarctica and was active during the Miocene. Geography and geology Mount Hampton is the northernmost volcano of the Executive Committee Range in Marie Byrd Land, Antarctica. It has the form of a symmetrical uneroded shield volcano with an "impressive" appearance and an ice-filled wide caldera. Like other volcanoes in the Executive Committee Range, it is a paired volcano with the northwesterly high Whitney Peak and the southeasterly high Marks Peak, which is the main summit of Mount Hampton. The northwesterly summit is associated with its own caldera, which is partly cut by the Mount Hampton caldera on the southeastern flank and buried by the lava flows from the latter. The centres of the two calderas are about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hallett Peninsula
Hallett Peninsula () is a triangular, dome-shaped peninsula, long, with cliffs on its eastern seaboard side and on its west side. The peninsula extends from Cape Hallett to Cape Wheatstone and is joined to the mainland by a narrow ridge between Tucker Glacier and Edisto Inlet. It was so named by the New Zealand Geological Survey Antarctic Expedition, 1957–58, because Hallett Station on Seabee Hook was established at the north end of the peninsula. The peninsula is an elongated shield volcano complex similar to the Adare and Daniell peninsulas. It forms part of the Hallett Volcanic Province of the McMurdo Volcanic Group. Basalt Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ...ic lava of the Hallett Peninsula has been dated to 6.4 ± 0.4 million years old. See also * Heave-ho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Haddington
Mount Haddington is a massive high shield volcano comprising much of James Ross Island in Graham Land, Antarctica. It is wide and has had numerous subglacial eruptions throughout its history, forming many tuyas. Some of its single eruptions were bigger in volume than a whole normal-sized volcano. Old eruption shorelines are widespread on the volcano's deeply eroded flanks. Haddington formed along the Larsen Rift dominantly during the Miocene and Pliocene epochs but more recent eruptions have produced tuff cones on its slopes. The youngest tuff cones and pyroclastic cones on the eastern slope are situated below the summit icecap and may have formed in the last few thousand years. Effusive eruptions have created large deltas composed of hyaloclastite breccia and lava flows. Mount Haddington was discovered on December 31, 1842 by the Ross expedition, a voyage of scientific exploration of the Antarctic from 1839 to 1843 led by James Clark Ross. Ross named the mountain after the E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaussberg
Gaussberg (or Schwarzen Berg, Mount Gauss) is an extinct, high volcanic cone in East Antarctica fronting on Davis Sea immediately west of Posadowsky Glacier. It is ice-free and conical in nature, having formed subglacially about 55,000 years ago. The current edifice is thought to be the remains of a once-larger mountain that has been reduced by glacial and subaerial erosion. The volcano has produced lamproite magmas, and is the youngest volcano to have produced such magmas on Earth. Research history Discovered in February 1902 by the German Antarctic Expedition under Erich von Drygalski, who named it after his expedition ship which in 1902 remained stuck in ice for a year. The ship in turn was named in honour of the German mathematician Carl Friedrich Gauss. Drygalski observed the volcano with the help of a tethered balloon. Owing to its peculiar composition, Gaussberg has been intensively researched. The mountain was investigated in 1912 by the 1911-1914 Australasia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franklin Island (Antarctica)
Franklin Island is an island long, lying in the Ross Sea about east of Cape Hickey, Victoria Land. It was discovered on January 27, 1841 by James Clark Ross, and named for Sir John Franklin, the noted Arctic explorer, who as Governor of Van Diemen's Land (Tasmania) had royally entertained the expedition on its way south at Hobart in 1840. Though located just north of Beaufort Island and appearing at first glance to be part of the same group, it is not usually considered to be part of the Ross Archipelago. The island is the eroded remnant of a shield volcano that formed 4.8 +/- 2.0 million years ago, the vent of which is now submerged off the east coast. The island hosts a breeding colony of Adélie penguins. Bernacchi Head () forms the southern extremity of Franklin Island. The Franklin Shoals () lie close by. See also * Composite Antarctic Gazetteer * List of Antarctic islands south of 60° S * Scientific Committee on Antarctic Research * Territorial claims in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Frakes
Mount Frakes is a prominent shield volcano marking the highest elevation in the Crary Mountains, in Marie Byrd Land, Antarctica and is the third highest volcanic elevation on the continent. The mountain was mapped by the USGS from surveys and U.S. Navy air photos, 1959–66. Named by US-ACAN for Lawrence A. Frakes, United States Antarctic Program geologist who worked three summer seasons in the Falkland Islands and Antarctica, 1964-65 through 1967–68. See also *List of volcanoes in Antarctica *List of Ultras of Antarctica This is a list of all the Ultra prominent peaks (with topographic prominence greater than 1,500 metres) in Antarctica. Some islands in the South Atlantic have also been included and can be found at the end of the list. Antarctica South Atl ... References Sources * * External links "Mount Frakes, Antarctica" on Peakbagger Polygenetic shield volcanoes Volcanoes of Marie Byrd Land Shield volcanoes of Antarctica Crary Mountains {{M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Erebus
Mount Erebus () is the second-highest volcano in Antarctica (after Mount Sidley), the highest active volcano in Antarctica, and the southernmost active volcano on Earth. It is the sixth-highest ultra mountain on the continent. With a summit elevation of , it is located in the Ross Dependency on Ross Island, which is also home to three inactive volcanoes: Mount Terror, Mount Bird, and Mount Terra Nova. The volcano has been active since about 1.3 million years ago and has a long-lived lava lake in its inner summit crater that has been present since at least the early 1970s. The volcano was the site of the Air New Zealand Flight 901 accident, which occurred in November 1979. Geology and volcanology Mount Erebus is the world's southernmost active volcano. It is the current eruptive centre of the Erebus hotspot. The summit contains a persistent convecting phonolitic lava lake, one of five long-lasting lava lakes on Earth. Characteristic eruptive activity consists of Str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Discovery
Mount Discovery is a conspicuous, isolated stratovolcano, lying at the head of McMurdo Sound and east of Koettlitz Glacier, overlooking the NW portion of the Ross Ice Shelf. It forms the center of a three-armed mass of which Brown Peninsula is one extension to the north; Minna Bluff is a second to the east; the third is Mount Morning to the west. Mount Discovery was discovered by the British National Antarctic Expedition (1901–04) and named for their expedition ship ''Discovery''. __NOTOC__ See also * Eady Ice Piedmont *List of volcanoes in Antarctica *List of Ultras of Antarctica This is a list of all the Ultra prominent peaks (with topographic prominence greater than 1,500 metres) in Antarctica. Some islands in the South Atlantic have also been included and can be found at the end of the list. Antarctica South Atl ... References Sources * * * External links "Mount Discovery, Antarctica" on Peakbagger Stratovolcanoes of New Zealand Mountains of Victoria ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deception Island
Deception Island is an island in the South Shetland Islands close to the Antarctic Peninsula with a large and usually "safe" natural harbor, which is occasionally troubled by the underlying active volcano. This island is the caldera of an active volcano, which seriously damaged local scientific stations in 1967 and 1969. The island previously held a whaling station. It is now a tourist destination with over 15,000 visitors per year. Two research stations are operated by Argentina and Spain during the summer season. While various countries have asserted sovereignty, it is still administered under the Antarctic Treaty System. Geography Located within the Bransfield Strait, the island is roughly circular and horseshoe-shaped, with a maximum diameter around . The highest peak, Mont Pond on the east side of the island, has an elevation of , while Mount Kirkwood on the west has an elevation of . Over half (57%) of the island is covered by glaciers up to 10 m thick, ice-cor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
