Masson Island

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Masson Island
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Masson Island
Location in Antarctica
Geography
Location Antarctica
Coordinates 66°08′S96°35′E / 66.133°S 96.583°E / -66.133; 96.583 Coordinates: 66°08′S96°35′E / 66.133°S 96.583°E / -66.133; 96.583
Length31 km (19.3 mi)
Highest elevation465 m (1,526 ft)
Administration
Administered under the Antarctic Treaty System
Demographics
PopulationUninhabited

Masson Island or Mission Island is an ice-covered island about 31 kilometres (17 nmi) long and rising to 465 metres (1,526 ft), lying 17 kilometres (9 nmi) northwest of Henderson Island within the Shackleton Ice Shelf. Masson Island is located in the western part of Mawson Sea at 66°08′S96°35′E / 66.133°S 96.583°E / -66.133; 96.583 and has an elevation of 465 metres (1,526 ft). Masson Island was discovered in February 1912 by the Australian Antarctic Expedition under Sir Douglas Mawson, who named it for Professor Sir David Orme Masson of Melbourne, a member of the Australian Antarctic Expedition Advisory Committee.

Ice water frozen into the solid state

Ice is water frozen into a solid state. Depending on the presence of impurities such as particles of soil or bubbles of air, it can appear transparent or a more or less opaque bluish-white color.

Island Any piece of sub-continental land that is surrounded by water

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. A grouping of geographically or geologically related islands is called an archipelago, such as the Philippines.

Henderson Island (Shackleton Ice Shelf) island

Henderson Island is an ice-covered island 17 kilometres (9 nmi) long and rising to 240 m (787 ft), lying 17 kilometres (9 nmi) southeast of Masson Island within the Shackleton Ice Shelf. Henderson Island was discovered in August 1912 by the Western Base Party of the Australian Antarctic Expedition under Sir Douglas Mawson and named by him for Prof. G. C. Henderson of Adelaide, a member of the Australian Antarctic Expedition Advisory Committee.

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See also

Scientific Committee on Antarctic Research organization

The Scientific Committee on Antarctic Research (SCAR) is an interdisciplinary body of the International Council for Science (ICSU).

Territorial claims in Antarctica Wikimedia list article

There are seven sovereign states who currently maintain de jure, largely symbolic territorial claims in Antarctica: Argentina, Australia, Chile, France, New Zealand, Norway and the United Kingdom. These countries have tended to place their Antarctic scientific observation and study facilities within their respective claimed territories; however, a number of such facilities are located nowhere near the sectors claimed by their respective countries of operation, and there are multiple other countries such as Russia and the United States who, despite having no territorial claim of their own anywhere in Antarctica, have constructed large research facilities within the sectors claimed by other countries.

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Davis Sea A marginal sea along the coast of East Antarctica between West Ice Shelf and Shackleton Ice Shelf

Davis Sea is an area of the sea along the coast of East Antarctica between West Ice Shelf in the west and the Shackleton Ice Shelf in the east, or between 82° and 96°E. The name "Davis Sea" appears in most leading geographically authoritative publications such as the 2014 10th edition World Atlas from the National Geographic Society and the 2014 12th edition of the Times Atlas of the World, unlike neighboring proposed water body names such as a Russian proposed "Cooperation Sea" name to the west.

Shackleton Ice Shelf ice shelf in Antarctica

Shackleton Ice Shelf is an extensive ice shelf fronting the coast of East Antarctica for about 384 km, projecting seaward about 145 km in the western portion and 64 km in the east. It occupies an area of 33,820 km². It is part of Mawson Sea and separates the Queen Mary Coast to the west from the Knox Coast of Wilkes Land to the east. The existence of this ice shelf was first made known by the USEE under Charles Wilkes who mapped a portion of it from the Vincennes in February 1840. It was explored by the Australian Antarctic Expedition under Douglas Mawson (1911–14) who named it for Sir Ernest Shackleton. The extent of the ice shelf was mapped in greater detail in 1955, using aerial photography obtained by US Navy Operation Highjump, 1946-47. Further mapping by the Soviet Expedition of 1956 showed the portion eastward of Scott Glacier to be a part of this ice shelf.

Mawson Peak volcano on Heard Island

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Charcot Island island in the Antarctic

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Welch Island (Antarctica)

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Denman Glacier glacier in Antarctica

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Mawson Peninsula is a high, narrow, ice-covered peninsula on the George V Coast, on the west side of the Slava Ice Shelf, Antarctica, terminating in Cape Hudson. It extends for over 30 nautical miles (56 km) in a northwesterly direction. The peninsula was photographed from the air by U.S. Navy Operation Highjump, 1946–47, and was sketched and photographed by Phillip Law of the Australian National Antarctic Research Expeditions who flew along it to its northern end in February 1959. It was named by the Antarctic Names Committee of Australia for Sir Douglas Mawson.

Framnes Mountains

The Framnes Mountains are an Antarctic mountain range consisting of Casey Range, Masson Range, David Range, and Brown Range, and adjacent peaks and mountains. The three major ranges and other lesser features were sighted and named in February 1931 by the British Australian New Zealand Antarctic Research Expedition under Douglas Mawson. This coast was also sighted by Norwegian whalers in the same season. The whole area was mapped in detail by Norwegian cartographers from aerial photographs taken by the Lars Christensen Expedition in January 1937. This overall name for the several ranges was given by Lars Christensen after Framnesfjellet, a hill near Sandefjord, Norway.

Australasian Antarctic Expedition research expedition

The Australasian Antarctic Expedition (AAE) was an Australasian scientific team that explored part of Antarctica between 1911 and 1914. It was led by the Australian geologist Douglas Mawson, who was knighted for his achievements in leading the expedition. In 1910 he began to plan an expedition to chart the 3,200-kilometre-long (2,000 mi) coastline of Antarctica to the south of Australia. The Australasian Association for the Advancement of Science approved of his plans and contributed substantial funds for the expedition.

Mawsons Huts architectural structure

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Mount Kirkby is a very large, prominent, linear, flat-topped mountain on the northern face of the Porthos Range in the Prince Charles Mountains of Antarctica. Situated about 3 nautical miles (6 km) east of Crohn Massif, it is approximately 9 kilometres (5 nmi) long east-west and 4 kilometres (2 nmi) wide at the western end, tapering to the east. It rises to 2,438 metres (8,000 ft). The mountain was first visited by the Australian National Antarctic Research Expeditions southern party led by William G. Bewsher in December 1956, and was named by the Antarctic Names Committee of Australia for Sydney L. Kirkby, a surveyor at Mawson Station in 1956 and 1960.

The Masson Range is a high broken chain of mountains, consisting primarily of the North Masson, Central Masson and South Masson Ranges and the Trilling Peaks, forming a part of the Framnes Mountains. Having several peaks over 1,000 metres (3,300 ft), the range extends in a north–south direction for 15 nautical miles (28 km). It was discovered and charted by the British Australian and New Zealand Antarctic Research Expedition, 1929–31, under Douglas Mawson, and named for Professor Sir David Orme Masson, a member of the Advisory Committee for this expedition as well as the Australasian Antarctic Expedition, 1911–14, also under Mawson. The mountains were first visited by an Australian National Antarctic Research Expeditions party led by John Béchervaise in 1956.

Borradaile Island island

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Butler Island (Antarctica)

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Jennings Bluff is a dark, flat-topped outcrop in the Nicholas Range of Antarctica, 10 nautical miles (19 km) north of Mount Storegutt. It rises about 100 metres (330 ft) above the general ice level and has a steep eastern side, backing to an ice scarp in the west. The bluff was discovered by the British Australian New Zealand Antarctic Research Expedition, 1929–31, under Mawson. It was mapped by Norwegian cartographers from aerial photos taken by the Lars Christensen Expedition, 1936–37, and called Brattstabben. It was photographed from Australian National Antarctic Research Expeditions aircraft in 1956 and remapped, and was renamed by the Antarctic Names Committee of Australia in 1961 for Noel Durrent Jennings, an assistant diesel mechanic at Mawson Station in 1960.

Douglas Islands

The Douglas Islands are two small islands 22 kilometres (12 nmi) northwest of Cape Daly, and 6 kilometres (3 nmi) north of Andersen Island, as well as 7 kilometres (4 nmi) north-east of Child Rocks, which are both part of the Robinson Group.. They were discovered by the British Australian New Zealand Antarctic Research Expedition under Mawson, 1929–31, and named for Vice-Admiral Percy Douglas, then Hydrographer of the Royal Navy. The islands were first sighted during an aircraft flight from the Discovery on Dec. 3 1, 1929, and reported to lie in about 66°40′S64°30′E, but after the 1931 voyage they were placed at 67°20′S63°32′E. In 1956, an Australian National Antarctic Research Expeditions sledge party led by P.W. Crohn was unable to find them in this position, but found two uncharted islands farther south to which the name has now been applied.

References

    PD-icon.svg This article incorporates  public domain material from the United States Geological Survey document "Masson Island" (content from the Geographic Names Information System ).

    United States Geological Survey Scientific agency of the United States government

    The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility.

    Geographic Names Information System geographical database

    The Geographic Names Information System (GNIS) is a database that contains name and locative information about more than two million physical and cultural features located throughout the United States of America and its territories. It is a type of gazetteer. GNIS was developed by the United States Geological Survey in cooperation with the United States Board on Geographic Names (BGN) to promote the standardization of feature names.