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Jones Escarpment
Jones Escarpment is a curving escarpment, extending for in a southerly direction from the Riddell Nunataks and facing eastward, located north-northwest of Mount Starlight in Mac. Robertson Land. It was mapped from Australian National Antarctic Research Expeditions surveys and air photos, 1955–65, and was named by the Antarctic Names Committee of Australia for W.K. Jones, a geophysicist at Wilkes Station Wilkes Station was an Antarctic research station established 29 January 1957 by the United States as one of seven U.S. stations established for the International Geophysical Year (IGY) program in Antarctica. It was taken over by Australia on ... in 1960. References Escarpments of Antarctica Landforms of Mac. Robertson Land {{MacRobertsonLand-geo-stub ... [...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] |
Escarpment
An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations. The terms ''scarp'' and ''scarp face'' are often used interchangeably with ''escarpment''. Some sources differentiate the two terms, with ''escarpment'' referring to the margin between two landforms, and ''scarp'' referring to a cliff or a steep slope. In this usage an escarpment is a ridge which has a gentle slope on one side and a steep scarp on the other side. More loosely, the term ''scarp'' also describes a zone between a coastal lowland and a continental plateau which shows a marked, abrupt change in elevation caused by coastal erosion at the base of the plateau. Formation and description Scarps are generally formed by one of two processes: either by differential erosion of sedimentary rocks, or by movement of the Earth's crust at a geologic fault. The first process is the more common type: the escarpment is a t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riddell Nunataks
Riddell Nunataks () is a group of low exposed rock ridges, with snow and ice nearly extending to the summits, lying 5 miles northwest of Anare Nunataks in Mac. Robertson Land. Extending for 10 nautical miles (19 km) in a southerly direction from the ridges is a curving escarpment, the Jones Escarpment. They were discovered by an ANARE (Australian National Antarctic Research Expeditions) party led by R.G. Dovers in 1954, and named for Alfred Riddell, carpenter at Mawson Station The Mawson Station, commonly called Mawson, is one of three permanent bases and research outposts in Antarctica managed by the Australian Antarctic Division (AAD). Mawson lies in Holme Bay in Mac. Robertson Land, East Antarctica in the Austra ... in 1955. References Nunataks of Mac. Robertson Land {{MacRobertsonLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Starlight
Athos Range () is the northernmost range in the Prince Charles Mountains of Mac. Robertson Land, Antarctica. The range consists of many individual mountains and nunataks that trend east–west for along the north side of Scylla Glacier. These mountains were first observed from aircraft of U.S. Navy Operation Highjump, 1946–47. The western part of the range was first visited by an ANARE Australian National Antarctic Research Expeditions (ANARE) party led by John Béchervaise in November 1955. The range was again visited in December 1956 by the ANARE southern party, 1956–57, led by W.G. Bewsher, and a depot was established at the eastern extremity. It was named after a character in ''The Three Musketeers'', a novel by Alexandre Dumas, ''père'' which was the most popular book read on the southern journey. Key mountains * Mount Albion () is a mountain south-southeast of Mount O'Shea in the south part of the Athos Range. Discovered by an ANARE southern party led by W.G. Bew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian National Antarctic Research Expeditions
The Australian National Antarctic Research Expeditions (ANARE ) is the historical name for the Australian Antarctic Program (AAp) administered for Australia by the Australian Antarctic Division (AAD). History Australia has had a long involvement in south polar regions since as early as Douglas Mawson's Australasian Antarctic Expedition in 1911. Further Australian exploration of the Antarctic continent was conducted during the British Australian and New Zealand Antarctic Research Expedition (BANZARE), which was conducted over the years 1929–1931. The Australian National Antarctic Research Expeditions were established in 1947 with expeditions to Macquarie Island and Heard Island. In 1948 the Australian Antarctic Division (AAD) was established to administer the expedition program. ANARE Name The name ANARE fell out of official use in the early 2000s. However current and former Australian Antarctic expeditioners continue to use the term informally as a means of identifica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctic Names Committee Of Australia
The Australian Antarctic Names and Medals Committee (AANMC) was established to advise the Government on names for features in the Australian Antarctic Territory and the subantarctic territory of Heard Island and the McDonald Islands. The committee also issues nominations Governor General for the award of the Australian Antarctic Medal. Committee members were appointed by the Minister or Parliamentary Secretary responsible for Antarctic matters. The committee was founded in 1952 as the Antarctic Names Committee of Australia, and changed to the current name in 1982 to reflect the multiple functions that the committee is responsible for. The committee was replaced by the Australian Antarctic Division Place names Committee in 2015. Features named by the committee * Fyfe Hills, named after W.V. Fyfe, Surveyor General of Western Australia * Goldsworthy Ridge, named after R.W. Goldsworthy, survey field assistant * Gowlett Peaks, named after Alan Gowlett, engineer * Haigh Nunatak, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilkes Station
Wilkes Station was an Antarctic research station established 29 January 1957 by the United States as one of seven U.S. stations established for the International Geophysical Year (IGY) program in Antarctica. It was taken over by Australia on 7 February 1959. History Navy personnel from the United States constructed the main part of Wilkes in a period of 16 days in January and February 1957, unloading 11,000 tons of material and supplies. It took a crew of over 100 to erect the station which housed 24 naval personnel and scientists for the next 18 months. As this was the time of the Cold War, there was considerable concern by the United States and Australia about Russian activity in Antarctica. Wilkes was seen to be strategically located because of its proximity to the south magnetic pole. Australia assumed custody of Wilkes, which remained the property of the U.S. State Department, in February 1959. Although Australia officially took over the operational command, the remain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Escarpments Of Antarctica
An escarpment is a steep slope or long cliff that forms as a result of faulting or erosion and separates two relatively level areas having different elevations. The terms ''scarp'' and ''scarp face'' are often used interchangeably with ''escarpment''. Some sources differentiate the two terms, with ''escarpment'' referring to the margin between two landforms, and ''scarp'' referring to a cliff or a steep slope. In this usage an escarpment is a ridge which has a gentle slope on one side and a steep scarp on the other side. More loosely, the term ''scarp'' also describes a zone between a coastal lowland and a continental plateau which shows a marked, abrupt change in elevation caused by coastal erosion at the base of the plateau. Formation and description Scarps are generally formed by one of two processes: either by differential erosion of sedimentary rocks, or by movement of the Earth's crust at a geologic fault. The first process is the more common type: the escarpment is a tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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