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Vindication Island
Vindication Island is a small uninhabited island of the Candlemas Islands in the South Sandwich Islands. It is one of about a dozen islands that make up the South Sandwich island arc, a chain of volcanoes in the Southern Ocean that was discovered in 1775 by James Cook. The volcanism is caused by the subduction of the South American Plate beneath the Sandwich Plate. The island has a rectangular outline and is the remnant of three mostly eroded volcanoes. The highest point of the island, Quadrant Peak, directly overlies the coast. Inland Vindication Island features a rich vegetation, consisting of lichens and mosses, while various bird and penguin species breed along the coasts. There is no evidence of recent volcanic activity. History and toponymy Vindication and Candlemas Island were both discovered on 2 February 1775 by James Cook aboard . In 1951–1952 the Argentine frigates and installed a marker on Vindication, claiming Argentine sovereignty over the island; this is t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sentinel-2
Sentinel-2 is an Earth observation mission from the Copernicus Programme that acquires optical imagery at high spatial resolution (10 m to 60 m) over land and coastal waters. The mission's Sentinel-2A and Sentinel-2B satellites were joined in orbit in 2024 by a third, Sentinel-2C, and in the future by Sentinel-2D, eventually replacing the A and B satellites, respectively. The mission supports services and applications such as agricultural monitoring, emergencies management, land cover classification, and water quality. Sentinel-2 has been developed and is being operated by the European Space Agency. The satellites were manufactured by a consortium led by Airbus Defence and Space in Friedrichshafen, Germany. Overview The Sentinel-2 mission includes: * Multispectral image, Multi-spectral data with 13 bands in the Visible spectrum, visible, Infrared#Regions within the infrared, near infrared, and Infrared#Regions within the infrared, short wave infrared part of the Electromagnetic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Georgia
South Georgia is an island in the Atlantic Ocean, South Atlantic Ocean that is part of the British Overseas Territories, British Overseas Territory of South Georgia and the South Sandwich Islands. It lies around east of the Falkland Islands. Stretching in the east–west direction, South Georgia is around long and has a maximum width of . The terrain is mountainous, with the central ridge rising to at Mount Paget. The northern coast is indented with numerous bays and fjords, serving as harbor, harbours. Discovered by Europeans in 1675, South Georgia had no indigenous population due to its harsh climate and remoteness. Captain James Cook in made the first landing, survey and mapping of the island. On 17 January 1775, Cook claimed it a British possession, naming it "Isle of Georgia" after George III, King George III. Through its history of South Georgia and the South Sandwich Islands, history, it served as a whaling and seal hunting base, with intermittent population scattere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erosion
Erosion is the action of surface processes (such as Surface runoff, water flow or wind) that removes soil, Rock (geology), rock, or dissolved material from one location on the Earth's crust#Crust, Earth's crust and then sediment transport, transports it to another location where it is deposit (geology), deposited. Erosion is distinct from weathering which involves no movement. Removal of rock or soil as clastic sediment is referred to as ''physical'' or ''mechanical'' erosion; this contrasts with ''chemical'' erosion, where soil or rock material is removed from an area by Solvation, dissolution. Eroded sediment or solutes may be transported just a few millimetres, or for thousands of kilometres. Agents of erosion include rainfall; bedrock wear in rivers; coastal erosion by the sea and Wind wave, waves; glacier, glacial Plucking (glaciation), plucking, Abrasion (geology), abrasion, and scour; areal flooding; Aeolian processes, wind abrasion; groundwater processes; and Mass wastin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thule Island
Thule Island, also called Morrell Island, is one of the southernmost of the South Sandwich Islands, part of the grouping known as Southern Thule. It is named, on account of its remote location, after the mythical land of Thule, said by ancient geographers to lie at the extreme end of the Earth. The alternative name Morrell Island is after Benjamin Morrell, an American explorer and whaling captain. The island was espied by James Cook and his '' Resolution'' crew on 31 January 1775 during his attempt to find Terra Australis. Geography Thule Island is roughly triangular in shape and in area with a long, panhandle-like peninsula called Hewison Point, , extending to the southeast. Steep slopes ascend to a summit caldera with the peak of Mount Larsen at above sea level. Mount Larsen is named after the Antarctic explorer and whaler Carl Anton Larsen. On the southwestern end lies Wasp Point. Off Hewison Point lies the small islet of Twitcher Rock, the southernmost land on Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cook Island, South Sandwich Islands
Cook Island is the central and largest island of the Southern Thule island group, part of the South Sandwich Islands in the far south Atlantic Ocean. Southern Thule was discovered by a British expedition under Captain James Cook in 1775. Cook Island was named for Cook by a Russian expedition under Fabian Gottlieb von Bellingshausen, which explored the South Sandwich islands in 1819–1820. The island was surveyed in 1930 by Discovery Investigations (DI) personnel on '' Discovery II'', who charted and named many of its features. Other names were later applied by the United Kingdom Antarctic Place-Names Committee (UK-APC). Geography Cook Island measures about wide. It is heavily glaciated and uninhabited. Its highest peak, Mount Harmer, rises to . Mount Holdgate rises at the southeast end of the island. Working clockwise from the northwest, the following points are found on the island's coast. All were named by DI personnel unless otherwise specified. Resolution Point is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bellingshausen Island
Bellingshausen Island is one of the most southerly islands of the South Sandwich Islands, close to Thule Island and Cook Island, and forming part of the Southern Thule group. It is named after its discoverer, Russian Antarctic explorer Fabian von Bellingshausen (1778–1852). The island is a basaltic andesite stratovolcano, and the latest crater, which is about across and deep was formed from an explosion some time between 1968 and 1984. Its highest point, at , is Basilisk Peak. Isaacson Point is its southeast point—an area first charted by Discovery Investigations personnel on the '' Discovery II'' in 1930. It was named after Ms. S. M. Isaacson, an assistant to the staff of the Discovery Committee. See also * Hardy Point * List of Antarctic and sub-Antarctic islands This is a list of Antarctic and sub-Antarctic islands. * Antarctic islands are, in the strict sense, the islands around mainland Antarctica, situated on the Antarctic Plate, and south of the Anta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freezland Rock
Bristol Island is an uninhabited island in the South Sandwich Islands, an archipelago in the Southern Ocean. The island is almost entirely surrounded by ice cliffs and largely covered with ice. It features both the oldest rocks of this archipelago and an active volcano that last erupted in 2016. Geography and geomorphology Bristol Island is one of the South Sandwich Islands, which lie southeast of South Georgia in the Southern Ocean and extend over a distance of in a north–south direction. It lies about southwest of Montagu Island and is separated from Southern Thule by Forsters Passage. The first island of the South Sandwich Islands to be discovered was Freezland Rock, which was sighted on 31 January 1775 by a sailor named Freezland on James Cook's HMS ''Resolution''. Cook considered Bristol Island to be a promontory on a larger island; it was Thaddeus von Bellingshausen who in 1819 determined that Bristol was actually an island. The island is almost inaccessible ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montagu Island
Montagu Island is the largest of the South Sandwich Islands, located in the Scotia Sea off the coast of Antarctica. Almost entirely Glacier, ice-covered with only sparse rocky outcrops, Montagu consists of a large caldera with a large parasitic cone, Mount Oceanite. Several secondary volcanic cones have formed in the caldera, including Mount Belinda. The island is rarely visited owing to the remote location, and there is only sparse vegetation. Penguins and seabirds live along the coasts. Before an eruption in 2001, which continued for several years and formed a lava delta on the northern coast, Mount Belinda was not known to have been active during the Holocene (the past 12,000 years). Geography and geomorphology Montagu Island is part of the South Sandwich Islands, a north–south trending chain of islands north of Antarctica and east of the Scotia Sea southeast of the Falklands. From north to south they include Zavodovski Island, Leskov Island, Visokoi Island, Candlemas Isl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saunders Island (South Sandwich Islands)
Saunders Island is a crescent-shaped island lying between Candlemas Island and Montagu Island in the South Sandwich Islands, a British Overseas Territory in the southern Atlantic Ocean. The long Saunders is a volcanic island composed of an active stratovolcano, Mount Michael, and a cluster of pyroclastic cones on the southeastern side. Mount Michael has a lava lake in its summit crater, which is fumarolically active, and there is widespread evidence of recent eruptions across the island. The island is used as a breeding ground by many bird species, including penguins, but is barren of vegetation apart from lichens and some moss-covered patches. Most of the island is covered in ice. Geography and geology Regional Saunders Island was discovered in 1775 by James Cook from , and is part of the South Sandwich Islands in the southern Atlantic Ocean at the eastern end of the Scotia Sea. They lie about north of Antarctica and about the same distance south-east of the Falklan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Candlemas Island
Candlemas Island is a small uninhabited island of the Candlemas Islands in the South Sandwich Islands. It is one of about a dozen islands that make up the South Sandwich island arc, a chain of volcanoes in the Southern Ocean that was discovered in 1775 by James Cook. The volcanism is caused by the subduction of the South American Plate beneath the Sandwich Plate. The island is remote and rarely visited due to the often hostile weather conditions, but is populated by penguins and seabirds, which form large breeding colonies. The island consists of two parts. The southeastern part is older and consists of the heavily glaciated volcanoes Mount Andromeda - with elevation the highest point of the island - and Mount Perseus, and shows no evidence of recent activity. The northwestern part features the younger scoria cone complex Lucifer Hill, which is surrounded by lava flows. Some of the lava flows may have been emplaced during the 20th century. The older rocks consist mostly of ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Visokoi Island
Visokoi Island is an uninhabited volcanic island and one the three Traversay Islands that constitute a subgroup of the South Sandwich Islands, in the Southern Ocean. Visokoi consists of one major volcano, Mount Hodson, whose height is usually given as . The mountain is mostly covered by glaciers, except for several low areas on the coast like the northern Finger Point and eastern Irving Point. Several parasitic vents are found especially on the eastern side, and one vent close to Finger Point is still hot. Eruptions were reported in 1830, 1927 and 1930, and a large landslide took place during historical time. Geography and geomorphology Visokoi is one of the South Sandwich Islands, which lie southeast of South Georgia in the Southern Ocean and extend over a distance of in north-south direction. Leskov Island is west and Zavodovski Island north from Visokoi; together they makes up the Traversay Islands subgroup of the South Sandwich Islands. Icebergs occur in the surroun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
