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Crosscut Point
Crosscut Point () is a series of jagged rocks forming the north end of Vindication Island in the South Sandwich Islands. It was charted in 1930 by Discovery Investigations personnel on the ''Discovery II'', and so named because numerous crosscutting dikes have withstood weathering and produced this irregular formation. See also *Saw Rock Saw Rock () is a rock, 25 m high, lying 0.4 nautical miles (0.7 km) north of Crosscut Point, the north extremity of Vindication Island, in the South Sandwich Islands. Charted in 1930 by Discovery Investigations, DI personnel on the ''RRS Disc ... References * Headlands of South Georgia and the South Sandwich Islands {{SouthGeorgia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vindication Island
Vindication Island ( es, Isla Vindicación) is a small uninhabited island in the South Sandwich Islands. It lies about from Candlemas Island, separated by the Nelson Channel. The island is mostly ice free. Geography This small island is part of the Candlemas Islands subgroup of the South Sandwich Islands. The island's highest point is Quadrant Peak at , while the south-easternmost cape is Chinstrap Point. Its southwesternmost point is Knob Point, charted in 1930 by Discovery Investigations personnel on the ''Discovery II'', and probably so named because a conspicuous height of land overlooks the point. Splinter Crag forms its northern peak. Vindication Island is the eroded remains of a former volcanic group. Unlike neighbouring Candlemas Island Candlemas Island ( es, Isla Candelaria) is a small uninhabited island of the Candlemas Islands in the South Sandwich Islands. It lies about from Vindication Island, separated by the Nelson Channel. On the northwest flank of the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Sandwich Islands
) , anthem = "God Save the King" , song_type = , song = , image_map = South Georgia and the South Sandwich Islands in United Kingdom.svg , map_caption = Location of South Georgia and the South Sandwich Islands in the southern Atlantic Ocean , mapsize = 255px , subdivision_type = Sovereign state , subdivision_name = , established_title2 = Separation from Falkland Islands , established_date2 = 3 October 1985 , official_languages = English , demonym = , capital = King Edward Point , coordinates = , largest_settlement = capital , largest_settlement_type = largest settlement , ethnic_groups = , ethnic_groups_year = , government_type = Directly administered dependency under a constitutional monarchy , leader_title1 = Monarch , leader_name1 = Charles III , leader_title2 = Commissioner , leader_name2 = Alison Blake , national_representation = Government of the United Kingdom , national_representation_type1 = Minister , national_representation1 = Zac Go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Discovery Investigations
The Discovery Investigations were a series of scientific cruises and shore-based investigations into the biology of whales in the Southern Ocean. They were funded by the British Colonial Office and organised by the Discovery Committee in London, which was formed in 1918. They were intended to provide the scientific background to stock management of the commercial Antarctic whale fishery. The work of the Investigations contributed hugely to our knowledge of the whales, the krill they fed on, and the oceanography of their habitat, while charting the local topography, including Atherton Peak. The investigations continued until 1951, with the final report being published in 1980. Laboratory Shore-based work on South Georgia took place in the marine laboratory, Discovery House, built in 1925 at King Edward Point and occupied until 1931. The scientists lived and worked in the building, travelling half a mile or so across King Edward Cove to the whaling station at Grytviken to work on w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RRS Discovery II
RRS ''Discovery II'' was a British Royal Research Ship which, during her operational lifetime of about 30 years, carried out considerable hydrographical and marine biological survey work in Antarctic waters and the Southern Ocean in the course of the Discovery Investigations research program. Built in Port Glasgow, launched in 1928 and completed in 1929, she was the first purpose-built oceanographic research vessel and was named after Robert Falcon Scott's 1901 ship, RRS ''Discovery''. Career The ship's maiden voyage took place from December 1929 to May 1931 and consisted of a hydrographic survey of the South Sandwich Islands. From October 1932 until May 1933 she operated in the Antarctic, calling at South Africa, Australia and New Zealand. Similar voyages took place from 1934 to 1939 during which she supplied the British Graham Land expedition. Her last voyage before the onset of war was from September 1937 to May 1939. In December 1935 and January 1936 the ship was invo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dike (geology)
A dike or dyke, in Geology, geological usage, is a sheet of rock that is formed in a Fracture (geology), fracture of a pre-existing rock body. Dikes can be either Intrusive rock, magmatic or Sedimentary rock, sedimentary in origin. Magmatic dikes form when magma flows into a crack then solidifies as a sheet intrusion, either cutting across layers of rock or through a contiguous mass of rock. Clastic dikes are formed when sediment fills a pre-existing crack.Essentials of Geology, 3rd Ed, Stephen Marshak Magmatic dikes A magmatic dike is a sheet of igneous rock that cuts across older rock beds. It is formed when magma fills a fracture in the older beds and then cools and solidifies. The dike rock is usually more resistant to weathering than the surrounding rock, so that erosion exposes the dike as a natural wall or ridge. It is from these natural walls that dikes get their name. Dikes preserve a record of the fissures through which most mafic magma (fluid magma low in silica) reac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saw Rock
Saw Rock () is a rock, 25 m high, lying 0.4 nautical miles (0.7 km) north of Crosscut Point, the north extremity of Vindication Island, in the South Sandwich Islands. Charted in 1930 by DI personnel on the ''Discovery II ''Discovery II'', built in 1971, is the second of three Discovery sternwheel riverboats operated by the Riverboat Discovery company. ''Discovery II'' is still in use as a tour vessel on the Chena and Tanana rivers near Fairbanks, Alaska. Hist ...'' and named by them, probably for association with Crosscut Point. Rock formations of South Georgia and the South Sandwich Islands {{SouthGeorgia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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