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Saunders Island, South Sandwich Islands
Saunders Island is a crescent-shaped island long, lying between Candlemas Island and Montagu Island in the South Georgia and the South Sandwich Islands, South Sandwich Islands, a British Overseas Territory in the southern Atlantic Ocean. It is a volcanic island composed of an active stratovolcano, Mount Michael. History Saunders Island was discovered in 1775 by Captain James Cook, who named it for Charles Saunders (admiral), Sir Charles Saunders, First Lord of the Admiralty. It was charted in greater detail by Fabian Gottlieb von Bellingshausen, Bellingshausen in 1819, and in 1930 by Discovery Investigations (DI) personnel aboard RRS Discovery II, ''Discovery II''. The island was surveyed in 1964 by . Polar explorer Ernest Shackleton sometimes misspells the island's name as "Sanders Island" in his book ''s:South: the story of Shackleton's last expedition, 1914-1917, South''. Features The centre of the island is Mount Michael, a volcano known to have erupted explosively in 1819 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Michael
Mount Michael ( es, Monte Miguel) is an active volcanic mountain, 843 m, surmounting Saunders Island in the South Sandwich Islands, a British Overseas Territory The British Overseas Territories (BOTs), also known as the United Kingdom Overseas Territories (UKOTs), are fourteen dependent territory, territories with a constitutional and historical link with the United Kingdom. They are the last remna ... in the southern Atlantic Ocean. It is one of the few volcanoes in an overseas territory of the United Kingdom. The island was discovered by a British expedition under Cook in 1775, but the mountain was presumably first charted in 1820 by a Russian expedition under Bellingshausen. Recharted in 1930 by DI personnel on the Commander W.M. Carey, Royal Navy, captain of the '' Discovery II'' at the time of the survey. Persistent lava lake In 2019, it was discovered that Mount Michael has a persistent lava lake, a rare phenomenon which is known to occur at only eight vol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Geophysical Union
The American Geophysical Union (AGU) is a 501(c)(3) nonprofit organization of Earth, atmospheric, ocean, hydrologic, space, and planetary scientists and enthusiasts that according to their website includes 130,000 people (not members). AGU's activities are focused on the organization and dissemination of scientific information in the interdisciplinary and international fields within the Earth and space sciences. The geophysical sciences involve four fundamental areas: atmospheric and ocean sciences; solid-Earth sciences; hydrologic sciences; and space sciences. The organization's headquarters is located on Florida Avenue in Washington, D.C. History The AGU was established in December 1919 by the National Research Council (NRC) to represent the United States in the International Union of Geodesy and Geophysics (IUGG), and its first chairman was William Bowie of the United States Coast and Geodetic Survey (USCGS). For more than 50 years, it operated as an unincorpora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The New York Times
''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid digital subscribers. It also is a producer of popular podcasts such as '' The Daily''. Founded in 1851 by Henry Jarvis Raymond and George Jones, it was initially published by Raymond, Jones & Company. The ''Times'' has won 132 Pulitzer Prizes, the most of any newspaper, and has long been regarded as a national "newspaper of record". For print it is ranked 18th in the world by circulation and 3rd in the U.S. The paper is owned by the New York Times Company, which is publicly traded. It has been governed by the Sulzberger family since 1896, through a dual-class share structure after its shares became publicly traded. A. G. Sulzberger, the paper's publisher and the company's chairman, is the fifth generation of the family to head the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuff
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock containing 25% to 75% ash is described as tuffaceous (for example, ''tuffaceous sandstone''). Tuff composed of sandy volcanic material can be referred to as volcanic sandstone. Tuff is a relatively soft rock, so it has been used for construction since ancient times. Because it is common in Italy, the Romans used it often for construction. The Rapa Nui people used it to make most of the '' moai'' statues on Easter Island. Tuff can be classified as either igneous or sedimentary rock. It is usually studied in the context of igneous petrology, although it is sometimes described using sedimentological terms. Tuff is often erroneously called tufa in guidebooks and in television programmes. Volcanic ash The material that is expelled in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinnacle
A pinnacle is an architectural element originally forming the cap or crown of a buttress or small turret, but afterwards used on parapets at the corners of towers and in many other situations. The pinnacle looks like a small spire. It was mainly used in Gothic architecture. The pinnacle had two purposes: # Ornamental – adding to the loftiness and verticity of the structure. They sometimes ended with statues, such as in Milan Cathedral. # Structural – the pinnacles were very heavy and often rectified with lead, in order to enable the flying buttresses to contain the stress of the structure vaults and roof. This was done by adding compressive stress (a result of the pinnacle weight) to the thrust vector and thus shifting it downwards rather than sideways. History The accounts of Jesus' temptations in Matthew's and Luke's gospels both suggest that the Second Temple in Jerusalem had one or more pinnacles ( gr, το πτερυγιον του ιερου): :Then he (Satan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bight (geography)
In geography, a bight is a concave bend or curvature in a coastline, river or other geographical feature (such as a cliff), or it may refer to a very open bay formed by such a feature. Such bays are typically broad, open, shallow and only slightly recessed. Description Bights are distinguished from sounds, in that sounds are much deeper. Traditionally, explorers defined a bight as a bay that could be sailed out of on a single tack in a square-rigged sailing vessel, regardless of the direction of the wind (typically meaning the apex of the bight is less than 25 degrees from the edges). The term is derived from Old English ''byht'' (“bend, angle, corner; bay, bight”) with German ''Bucht'' and Danish ''bugt'' as cognates, both meaning "bay". Bight is not etymologically related to " bite" (Old English ''bītan''). Notable examples * Bay of Campeche * Bay of Plenty * Bight of Benin * Bight of Biafra or Bight of Bonny * Canterbury Bight * German Bight or Heligoland B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom Antarctic Place-Names Committee
The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and the South Georgia and the South Sandwich Islands (SGSSI). Such names are formally approved by the Commissioners of the BAT and SGSSI respectively, and published in the BAT Gazetteer and the SGSSI Gazetteer maintained by the Committee. The BAT names are also published in the international Composite Gazetteer of Antarctica maintained by SCAR. The Committee may also consider proposals for new place names for geographical features in areas of Antarctica outside BAT and SGSSI, which are referred to other Antarctic place-naming authorities, or decided by the Committee itself if situated in the unclaimed sector of Antarctica. Names attributed by the committee * Anvil Crag, named for descriptive features *Anckorn Nunataks, named after J. F. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lava Lake
Lava lakes are large volumes of molten lava, usually basaltic, contained in a volcanic vent, crater, or broad depression. The term is used to describe both lava lakes that are wholly or partly molten and those that are solidified (sometimes referred to as ''frozen lava lakes''). Formation Lava lakes can form in three ways: *from one or more vents in a crater that erupts enough lava to partially fill the crater; or *when lava pours into a crater or broad depression and partially fills the crater; or *atop a new vent that erupts lava continuously for a period of several weeks or more and slowly builds a crater progressively higher than the surrounding ground. Behaviors Lava lakes occur in a variety of volcanic systems, ranging from the basaltic Erta Ale lake in Ethiopia and the basaltic andesite volcano of Villarrica, Chile, to the unique phonolitic lava lake at Mt. Erebus, Antarctica. Lava lakes have been observed to exhibit a range of behaviours. A "constantly circu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saunders Island ASTER
Saunders is a surname of English and Scottish patronymic origin derived from Sander, a mediaeval form of Alexander.See also: Sander (name) People * Ab Saunders (1851–1883), American cowboy and gunman * Al Saunders (born 1947), American football coach * Alan Saunders (broadcaster) (1954–2012), broadcaster for the Australian Broadcasting Corporation * Alan Saunders (police officer) (1886–1964), Inspector-General of Police in Palestine, 1937–1943 * Alan Saunders (public servant) (1892–1957), English public servant and cricketer * Albert Charles Saunders (1874–1943), Canadian politician * Alfred Saunders (1820–1905), New Zealand politician * Alfred Thomas Saunders (1854–1940), generally known as A. T. Saunders, South Australian historian * Alison Saunders (born 1961), British barrister and Director of Public Prosecutions * Allen Saunders (1899–1986), American cartoonist * Alvin Saunders (1817–1899), American politician * Amy Saunders, British performer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest Shackleton
Sir Ernest Henry Shackleton (15 February 1874 – 5 January 1922) was an Anglo-Irish Antarctic explorer who led three British expeditions to the Antarctic. He was one of the principal figures of the period known as the Heroic Age of Antarctic Exploration. Born in Kilkea, County Kildare, Ireland, Shackleton and his Anglo-Irish family moved to Sydenham in suburban south London when he was ten. Shackleton's first experience of the polar regions was as third officer on Captain Robert Falcon Scott's ''Discovery'' expedition of 1901–1904, from which he was sent home early on health grounds, after he and his companions Scott and Edward Adrian Wilson set a new southern record by marching to latitude 82°S. During the ''Nimrod'' expedition of 1907–1909, he and three companions established a new record Farthest South latitude at 88°S, only 97 geographical miles (112 statute miles or 180 kilometres) from the South Pole, the largest advance to the pole ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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