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Brown Peak (Sturge Island)
Brown Peak is a stratovolcano and the highest point of the Balleny Islands. It is situated on the northern part of Sturge Island. Discovery and naming John Balleny discovered Brown Peak in February 1839, and named it for W. Brown, a merchant who provided financial support to the Enderby Brothers' expedition. In 1841, Captain James Clark Ross, who sighted the islands on his own expedition to Antarctica, gave it the name Russell Peak. Possible 2001 eruption Satellite imagery suggests that an eruption may have occurred on or about 12 June 2001. See also * List of volcanoes in Antarctica This is a list of volcanoes in Antarctica. Table A 2017 study claimed to have found 138 volcanoes, of which 91 were previously unknown. Some volcanoes are entirely under the ice sheet. Unconfirmed volcanoes are not included in the table below. ... References Bibliography * External links * * Volcanoes of the Balleny Islands Mountains of New Zealand Stratovolcanoes of New Zeala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sturge Island
Sturge Island is one of the three main islands in the uninhabited Balleny Islands group located in the Southern Ocean. It lies southeast of Buckle Island and north-east of Belousov Point on the Antarctic mainland. The island, in Oates Land, also forms part of the Ross Dependency, claimed by New Zealand. Description The island is roughly a parallelogram in shape, with long east and west coasts and shorter coasts facing north-west and south-east. Of volcanic origin, it is about in width, with a maximum length of , between Cape Freeman in the north and Cape Smyth in the south. It is mostly covered by ice and snow throughout the year. The island's highest point reaches with the unclimbed stratovolcano Brown Peak, the highest point in the Balleny chain. Discovery and naming The Balleny Islands were discovered by British mariner John Balleny in 1839. Sturge Island was named after Thomas Sturge, one of the London merchants who had financed Balleny's expedition. Important Bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balleny Islands
The Balleny Islands () are a series of uninhabited islands in the Southern Ocean extending from 66°15' to 67°35'S and 162°30' to 165°00'E. The group extends for about in a northwest-southeast direction. The islands are heavily glaciated and of volcanic origin. Glaciers project from their slopes into the sea. The islands were formed by the so-called Balleny hotspot. The group includes three main islands: Young, Buckle and Sturge, which lie in a line from northwest to southeast, and several smaller islets and rocks: *northeast of Young Island: Seal Rocks, Pillar *southeast of Young Island: Row Island, Borradaile Island (with Swan Base shelter hut) *south of Buckle Island: Scott Cone, Chinstrap Islet, Sabrina Islet (with Sabrina Refuge shelter hut), and the Monolith The islands are claimed by New Zealand as part of the Ross Dependency (see Territorial claims in Antarctica). Islands and rocks from north to south The islands' area totals and the highest point has been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Antarctica
East Antarctica, also called Greater Antarctica, constitutes the majority (two-thirds) of the Antarctic continent, lying on the Indian Ocean side of the continent, separated from West Antarctica by the Transantarctic Mountains. It lies almost entirely within the Eastern Hemisphere and its name has been accepted for more than a century. It is generally higher than West Antarctica and includes the Gamburtsev Mountain Range in the center. The geographic South Pole is located within East Antarctica. Apart from small areas of the coast, East Antarctica is permanently covered by ice and it has relatively low biodiversity, with only a small number of species of terrestrial plants, animals, algae, and lichens. The coasts are the breeding ground for various seabirds and penguins, and the leopard seal, Weddell seal, elephant seal, crabeater seal and Ross seal breed on the surrounding pack ice in summer. Location and description Almost completely covered in thick, permanent ice, East A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra Prominent Peak
An ultra-prominent peak, or Ultra for short, is a mountain summit with a topographic prominence of or more; it is also called a P1500. The prominence of a peak is the minimum height of climb to the summit on any route from a higher peak, or from sea level if there is no higher peak. There are approximately 1,524 such peaks on Earth. Some well-known peaks, such as the Matterhorn and Eiger, are not Ultras because they are connected to higher mountains by high cols and therefore do not achieve enough topographic prominence. The term "Ultra" originated with earth scientist Steve Fry, from his studies of the prominence of peaks in Washington (state), Washington in the 1980s. His original term was "ultra major mountain", referring to peaks with at least of prominence. Distribution Currently, 1,518 Ultras have been identified above sea level: 639 in Asia, 356 in North America, 209 in South America, 120 in Europe (including 12 in the Caucasus), 84 in Africa, 69 in Oceania, and 41 in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balleny Map , a townland in County Antrim, Northern Ireland
{{disambiguation ...
Balleny may refer to: * John Balleny (d. 1857), an English captain and explorer of the Antarctic * Balleny Islands, a series of uninhabited islands in the Antarctic Ocean * Balleny, County Down, a townland in County Down, Northern Ireland * Balleny, County Antrim In Ireland Counties are divided into Civil Parishes and Parishes are further divided into townlands. The following is a list of townlands in County Antrim, Northern Ireland: __NOTOC__ A Acravally, Aganlane (also known as Parkmore), Aghaboy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stratovolcano
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Balleny
John Balleny (died 1857) was the English captain of the sealing schooner , who led an exploration cruise for the English whaling firm Samuel Enderby & Sons to the Antarctic in 1838–1839. During the expedition of 1838–1839, Balleny, sailing in company with Thomas Freeman and , sailed into the Southern Ocean along a corridor of longitude centering on the line of 175°E., south of New Zealand. Biography Balleny was born approximately 1770, and by 1798 was living in St George in the East, then the shipping quarter of London, and was part owner of a 569 ton ship, ''Blenheim''. He was recorded as ship's master for a few trading ships up until 1824, including the trading ship ''Lord Cathcart'' and the 269-ton brig ''Peace''. In 1824, he owned part of a whaling barque, ''Caledonia'', but was not longer registered as the master of any ship for the following year, possibly indicating his retirement. Voyage of ''Eliza Scott'' Samuel Enderby & Sons had sent two unsuccessful expeditions towa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enderby Brothers
Samuel Enderby & Sons was a whaling and sealing company based in London, England, founded circa 1775 by Samuel Enderby (1717–1797). The company was significant in the history of whaling in the United Kingdom, not least for encouraging their captains to combine exploration with their business activities, and sponsored several of the earliest expeditions to the subantarctic, Southern Ocean and Antarctica itself. History of the company: 1773–1800 Enderby had acquired at least one ship, ''Almsbury'', c. 1768, renamed ''Rockingham'', that he used as a trader. In 1773 Enderby began the Southern Fishery, a whaling firm with ships registered in London and Boston. All of the captains and harpooners were American Loyalists. The vessels transported finished goods to the American colonies, and brought whale oil from New England to England. Some of Enderby's ships were reportedly chartered for the tea cargoes that were ultimately dumped into Boston Harbor during the Boston Tea Party ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Clark Ross
Sir James Clark Ross (15 April 1800 – 3 April 1862) was a British Royal Navy officer and polar explorer known for his explorations of the Arctic, participating in two expeditions led by his uncle John Ross, and four led by William Edward Parry, and, in particular, for his own Antarctic expedition from 1839 to 1843. Biography Early life Ross was born in London, the son of George Ross and nephew of John Ross, under whom he entered the Royal Navy on 5 April 1812. Ross was an active participant in the Napoleonic Wars, being present at an action where HMS ''Briseis'', commanded by his uncle, captured ''Le Petit Poucet'' (a French privateer) on 9 October 1812. Ross then served successively with his uncle on HMS ''Actaeon'' and HMS ''Driver''. Arctic exploration Ross participated in John's unsuccessful first Arctic voyage in search of a Northwest Passage in 1818 aboard ''Isabella''. Between 1819 and 1827 Ross took part in four Arctic expeditions under William Ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In Antarctica ...
This is a list of volcanoes in Antarctica. Table A 2017 study claimed to have found 138 volcanoes, of which 91 were previously unknown. Some volcanoes are entirely under the ice sheet. Unconfirmed volcanoes are not included in the table below. See also * Geology of Antarctica * Lists of volcanoes References Bibliography * Volcano World Web site {{Antarctica Antarctica * Volcanoes A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
