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Pyramid Peak (Victoria Land)
Pyramid Peak () is a peak in the southeast part of Destination Nunataks, Victoria Land Victoria Land is a region in eastern Antarctica which fronts the western side of the Ross Sea and the Ross Ice Shelf, extending southward from about 70°30'S to 78°00'S, and westward from the Ross Sea to the edge of the Antarctic Plateau. I ..., rising to . It is located north of Sphinx Peak. It was named by the Northern Party of the New Zealand Federated Mountain Clubs Antarctic Expedition of 1962–63. References Mountains of Victoria Land Pennell Coast {{VictoriaLand-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyramidal Peak
A pyramidal peak, sometimes called a glacial horn in extreme cases, is an angular, sharply pointed mountain peak which results from the cirque erosion due to multiple glaciers diverging from a central point. Pyramidal peaks are often examples of nunataks. Formation Glaciers, typically forming in drainages on the sides of a mountain, develop bowl-shaped basins called cirques (sometimes called ‘corries’ - from Scottish Gaelic ʰəɾə(a bowl) - or s). Cirque glaciers have rotational sliding that abrades the floor of the basin more than walls and that causes the bowl shape to form. As cirques are formed by glaciation in an alpine environment, the headwall and ridges between parallel glaciers called arêtes become more steep and defined. This occurs due to freeze/thaw and mass wasting beneath the ice surface. It is widely held that a common cause for headwall steepening and extension headward is the crevasses known as bergschrund that occur between the moving ice and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Destination Nunataks
The Destination Nunataks () are a group of peaks and nunataks, long and wide, rising to at Pyramid Peak and including Sphinx Peak, Andrews Peak, Mummy Ridge, and unnamed nunataks to the northwest, located in northeast Evans Névé, northwest of the Barker Range, Victoria Land, Antarctica. Exploration and naming This group was visited in 1970–71 by a Victoria University of Wellington Antarctic Expedition (VUWAE) geological party led by M.G. Laird. The name "Destination Rocks" was originally used for the feature because these nunataks were near the northern limits of Laird's expedition. The name Destination Nunataks, as approved by the New Zealand Antarctic Place-Names Committee (NZ-APC) and the United States Advisory Committee on Antarctic Names (US-ACAN) in 1985, applies to the entire group described rather than to just two nunataks at the southeast end as indicated on some maps. Location The Destination Nunataks lie at the end of a ridge extended southeast from the We ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria Land
Victoria Land is a region in eastern Antarctica which fronts the western side of the Ross Sea and the Ross Ice Shelf, extending southward from about 70°30'S to 78°00'S, and westward from the Ross Sea to the edge of the Antarctic Plateau. It was discovered by Captain James Clark Ross in January 1841 and named after Queen Victoria. The rocky promontory of Minna Bluff is often regarded as the southernmost point of Victoria Land, and separates the Scott Coast to the north from the Hillary Coast of the Ross Dependency to the south. The region includes ranges of the Transantarctic Mountains and the McMurdo Dry Valleys (the highest point being Mount Abbott in the Northern Foothills), and the flatlands known as the Labyrinth. The Mount Melbourne is an active volcano in Victoria Land. Early explorers of Victoria Land include James Clark Ross and Douglas Mawson. In 1979, scientists discovered a group of 309 meteorites A meteorite is a solid piece of debris from an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphinx Peak
The Destination Nunataks () are a group of peaks and nunataks, long and wide, rising to at Pyramid Peak and including Sphinx Peak, Andrews Peak, Mummy Ridge, and unnamed nunataks to the northwest, located in northeast Evans Névé, northwest of the Barker Range, Victoria Land, Antarctica. Exploration and naming This group was visited in 1970–71 by a Victoria University of Wellington Antarctic Expedition (VUWAE) geological party led by M.G. Laird. The name "Destination Rocks" was originally used for the feature because these nunataks were near the northern limits of Laird's expedition. The name Destination Nunataks, as approved by the New Zealand Antarctic Place-Names Committee (NZ-APC) and the United States Advisory Committee on Antarctic Names (US-ACAN) in 1985, applies to the entire group described rather than to just two nunataks at the southeast end as indicated on some maps. Location The Destination Nunataks lie at the end of a ridge extended southeast from the W ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Victoria Land
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
