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Elder Peak
Chapman Snowfield () is a large snowfield lying west of the central ridge in the Churchill Mountains in the Ross Dependency region of Antarctica. Location Chapman Snowfield is bounded to the north by Elder Peak and the massif surmounted by Mount Wharton, to the south by Soza Icefalls, Black Icefalls and the head of Starshot Glacier, and to the west by the Wallabies Nunataks and the All-Blacks Nunataks. The Gamble Glacier flows northwest from Chapman Snowfield between Green Nunatak to the southwest and Keating Massif to the northeast. The Soza Icefalls and Black Icefalls extend south to near the head of Starshot Glacier. Chapman Snowfield was named after William H. Chapman, topographic engineer, United States Geological Survey, leader of the 1961–62 Topo North – Topo South survey of mountains west of the Ross Sea from Cape Roget, Adare Peninsula, to Otway Massif at the head of Beardmore Glacier, a traverse totalling . This first helicopter-supported traverse with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Snow Field
A snow field, snowfield or neve is an accumulation of permanent snow and ice, typically found above the snow line, normally in mountainous and glacial terrain. Glaciers A glacier (; or ) is a persistent body of dense ice, a form of rock, that is constantly moving downhill under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires ... originate in snowfields. The lower end of a glacier is usually free from snow and névé in summer. In the upper end and above the upper boundary of a glacier, the snow field is an ice field covered with snow. The glacier upper boundary, where it emerges from under a snow field, is ill-defined because of gradual transition.Thomas Chrowder Chamberlin, Rollin D. Salisbury (1904) "Geology"p. 258 References Bodies of ice Landforms {{glaciology-stub it:Formazioni nevose perenni#Nevaio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Green Nunatak
Wallabies Nunataks () is a large group of nunataks near the polar plateau, to the west of the Churchill Mountains, Antarctica. Location The Wallabies Nunataks are 10 nautical miles (18 km) northeast of All-Blacks Nunataks at the east side of the Byrd Névé. They border the Chapman Snowfield to the west. They were named by the New Zealand Geological Survey Antarctic Expedition (NZGSAE) (1960–61) for the Australian national rugby team. Features Bledisloe Glacier . A glacier flowing north west between All-Blacks Nunataks and Wallabies Nunataks. It was named in association with the adjacent All-Blacks and Wallabies Nunataks, and specifically named after the Bledisloe Cup, which is contested between the New Zealand and Australian rugby union teams, the All-Blacks and the Wallabies. Mount Stent . A high mountain at the southern extreme of the Wallabies Nunataks. It was named in honor of N. E. Stent, a member of the 1961 Cape Hallett winter-over team, working as a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Wilhoite Nunataks
All-Blacks Nunataks () is a group of conspicuous nunataks lying midway between Wallabies Nunataks and Wilhoite Nunataks at the southeast margin of the Byrd Névé in Antarctica. Named by the New Zealand Geological Survey Antarctic Expedition (1960–61) after the well-known New Zealand national rugby union team. Location The All-Blacks Nunataks are to the southeast of the Byrd Névé and the Lonewolf Nunataks. The All-Blacks Nunataks and the Wallabies Nunataks bind the Chapman Snowfield, which lies further to the east. The Bledisloe Glacier flows to the Byrd Névé between All-Blacks Nunataks and Wallabies Nunataks, and the Skellerup Glacier flows to the Byrd Névé between All-Blacks Nunataks and Wilhoite Nunataks. Features Alexander Cone . A cone-shaped feature in the All-Blacks Nunataks. It was named in honor of John Alexander, involved in operational work at Cape Hallett, Scott Base and the Cape Roberts Project for many years, from 1984 onwards. Geddes Crag . A crag i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Nunatak
A nunatak (from Inuit language, Inuit ) 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 often form natural pyramidal peaks. Isolated nunataks are also called glacial islands, and smaller nunataks rounded by glacial action may be referred to as rognons. The word is of Greenlandic language, Greenlandic origin and has been used in English since the 1870s. Description The term ''nunatak'' is typically used in areas where a permanent ice sheet is present and the ridge protrudes 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 are isolated, they can also form dense clusters, such as Queen Louise Land in Greenland. Nunataks are generally angular and jagged, hampering the formation of glacial ice on thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Transantarctic Mountains
The Transantarctic Mountains (abbreviated TAM) comprise a mountain range of uplifted rock (primarily sedimentary) in Antarctica which extends, with some interruptions, across the continent from Cape Adare in northern Victoria Land to Coats Land. These mountains divide East Antarctica and West Antarctica. They include a number of separately named mountain groups, which are often again subdivided into smaller ranges. The range was first sighted by James Clark Ross in 1841 at what was later named the Ross Ice Shelf in his honour. It was first crossed during the British National Antarctic Expedition of 1901-1904. Geography The mountain range stretches between the Ross Sea and the Weddell Sea, the entire width of Antarctica, hence the name. With a total length of about , the Transantarctic Mountains are one of the longest mountain ranges on Earth. The Antarctandes are even longer, having in common with the Transantarctic Mountains the ranges from Cape Adare to the Queen M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Beardmore Glacier
The Beardmore Glacier in Antarctica is one of the largest valley glaciers in the world, being long and having a width of . It descends about from the Antarctic Plateau to the Ross Ice Shelf and is bordered by the Commonwealth Range of the Queen Maud Mountains on the eastern side and the Queen Alexandra Range of the Central Transantarctic Mountains on the western. Its mouth is east of the Lennox-King Glacier. It is northwest of the Ramsey Glacier. Early exploration The glacier is one of the main passages through the Transantarctic Mountains to the great polar plateau beyond, and was one of the early routes to the South Pole despite its steep upward incline. The glacier was discovered and climbed by Ernest Shackleton during his Nimrod Expedition, ''Nimrod'' Expedition of 1908. Although Shackleton turned back at latitude 88° 23' S, just from the South Pole, he established the first proven route towards the pole and, in doing so, became the first person to set foot up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Otway Massif
The Grosvenor Mountains () are a group of widely scattered mountains and nunataks rising above the Antarctic polar plateau east of the head of Mill Glacier, extending from Mount Pratt in the north to the Mount Raymond area in the south, and from Otway Massif in the northwest to Larkman Nunatak in the southeast. Discovery and naming The Grosvenor Mountains were discovered by Rear Admiral Richard E. Byrd on the Byrd Antarctic Expedition flight to the South Pole in November 1929, and named by him for Gilbert Hovey Grosvenor, President of the National Geographic Society, which helped finance the expedition. Several peaks near Mount Raymond were apparently observed by Ernest Shackleton in 1908, although they were then considered to be a continuation of the Dominion Range. Location The Grosvenor Mountains extend south and east from the Otway Massif, which forms the southeast angle of the juncture of the Mill Stream Glacier and the Mill Glacier. Features of the Otway Massif, which is sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Adare Peninsula
The Adare Peninsula (), is a high ice-covered peninsula, long, in the northeast part of Victoria Land, extending south from Cape Adare to Cape Roget. The peninsula was named by the New Zealand Antarctic Place-Names Committee (NZ-APC) for Cape Adare. The peninsula is considered the southernmost point of the Borchgrevink Coast, named for Carsten Borchgrevink (1864-1934). Geology The Adare Peninsula consists of overlapping shield volcanoes that have been potassium–argon dated 6 to 13 million years old. Potassium–argon dates of 2.27 million years and perhaps 1.14 million years have also been obtained. The Adare Peninsula shields form part of the Hallett Volcanic Province of the McMurdo Volcanic Group. West coast features Named features on the west coast, which faces Robertson Bay, are (from north to south): Cape Adare . A prominent cape of black basalt which is in visual contrast to the rest of the snow-covered coast, forming the north tip of Adare Peninsula. The cape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Cape Roget
Cape Roget is a steep rock cape at the southern end of the east coast of the Adare Peninsula, marking the northern side of the entrance to Moubray Bay, in northern Victoria Land, Antarctica. It was discovered in 1841 by Captain James Clark Ross, who named it for Peter Mark Roget, British physician, lexicographer and Secretary of the Royal Society. Important Bird Area A 371 ha site of sea ice at the northern entrance to Moubray Bay has been designated an Important Bird Area (IBA) by BirdLife International because it supports a colony of about 9,000 breeding pairs of emperor penguin The emperor penguin (''Aptenodytes forsteri'') is the tallest and heaviest of all living penguin species and is Endemism in birds, endemic to Antarctica. The male and female are similar in plumage and size, reaching in length and weighing fr ...s, according to estimates based on 2009 satellite imagery. References Roget Important Bird Areas of Antarctica Penguin colonies { ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Ross Sea
The Ross Sea is a deep bay of the Southern Ocean in Antarctica, between Victoria Land and Marie Byrd Land and within the Ross Embayment, and is the southernmost sea on Earth. It derives its name from the British explorer James Clark Ross who visited this area in 1841. To the west of the sea lies Ross Island and Victoria Land, to the east Roosevelt Island and Edward VII Peninsula in Marie Byrd Land, while the southernmost part is covered by the Ross Ice Shelf, and is about from the South Pole. Its boundaries and area have been defined by the New Zealand National Institute of Water and Atmospheric Research as having an area of . The circulation of the Ross Sea is dominated by a wind-driven ocean gyre and the flow is strongly influenced by three submarine ridges that run from southwest to northeast. The circumpolar deep water current is a relatively warm, salty and nutrient-rich water mass that flows onto the continental shelf at certain locations. The Ross Sea is covered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
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] [Amazon] |
Keating Massif
The Kent Plateau () is an ice-covered plateau in the northern extreme of the Churchill Mountains of Antarctica. Name Kent Plateau was named by the Advisory Committee on Antarctic Names for Commander Donald F. Kent, U.S. Navy, logistics officer to Admiral Dufek at the outset of U.S. Navy Operation Deep Freeze I, 1955–56. Location The Kent Plateau is an ice-covered plateau, long and wide, extending northward from Mount Egerton and Kiwi Pass to the vicinity of Mount Hamilton. The plateau is on the west of a ridge of mountains that runs north from Mount Durnford, dips at Kiwi Pass, then continues north from Mount Moa to Mount Hamilton along the east edge of the plateau. To the west of the plateau along the southeast edge of the Byrd Glacier there is a chain of mountains broken by glaciers that flow down from the plateau region to Byrd Glacier. Glaciers Several short glaciers run down from the plateau into Byrd Glacier. From southwest to northeast they are: Zeller Glacier . ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
