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Organpipe Point
Organpipe Point is a prominent east–west trending headland rising to about 60 or 70 m on the northwest coast of Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica and forming the north side of the entrance to Charybdis Cove and the southwest side of the entrance to Griffin Cove. The feature is descriptively named in association with the notable doleritic rock showing sub-vertical continuous columnar joints resembling organ pipes. Location The point is located at which is 1.23 km northeast of Slab Point, 350 m east of Zavala Island, 830 m southwest of Gargoyle Bastion and 2.26 km south-southwest of Williams Point Williams Point is the point forming both the north extremity of Varna Peninsula and the northeast tip of Livingston Island in the South Shetland Islands, Antarctica. Separated from Zed Islands to the north by Iglika Passage. The discovery of ... (British mapping in 1968, and Bulgarian in 2005 and 2009). Maps * L.L. Ivanov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Varna Peninsula
Varna Peninsula ( bg, полуостров Варна, poluostrov Varna, ) is a roughly rectangular predominantly ice-covered peninsula forming the northeast extremity of Livingston Island in the South Shetland Islands, Antarctica. It is bounded by Hero Bay to the northwest, by Moon Bay to the southeast, and by McFarlane Strait to the northeast. The peninsula is approximately 14 km long in the southwest–northeast direction and 10 km wide, with a central area occupied by Vidin Heights. The north and east extremities of Varna Peninsula are formed by Phelps Promontory and Williams Point, and by Inott Point respectively. The coast is indented by Lister Cove and Dragon Cove to the northeast, and by Griffin Cove, Charybdis Cove and Eliseyna Cove to the northwest. Bezmer Point is also on the northwest coast of the peninsula. The area was visited by early 19th century sealers. Williams Point was the first land discovered in the Antarctic Treaty area, by the British ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Livingston Island
Livingston Island (Russian name ''Smolensk'', ) is an Antarctic island in the Southern Ocean, part of the South Shetlands Archipelago, a group of Antarctic islands north of the Antarctic Peninsula. It was the first land discovered south of 60° south latitude in 1819, a historic event that marked the end of a centuries-long pursuit of the mythical ''Terra Australis Incognita'' and the beginning of the exploration and utilization of real Antarctica. The name Livingston, although of unknown derivation, has been well established in international usage since the early 1820s. Geography Livingston Island is situated in West Antarctica northwest of Cape Roquemaurel on the Antarctic mainland, south-southeast of Cape Horn in South America, southeast of the Diego Ramírez Islands (the southernmost land of South America), due south of the Falkland Islands, southwest of South Georgia Islands, and from the South Pole.L. IvanovGeneral Geography and History of Livingston Island.In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Shetland Islands
The South Shetland Islands are a group of Antarctic islands with a total area of . They lie about north of the Antarctic Peninsula, and between southwest of the nearest point of the South Orkney Islands. By the Antarctic Treaty of 1959, the islands' sovereignty is neither recognized nor disputed by the signatories and they are free for use by any signatory for non-military purposes. The islands have been claimed by the United Kingdom since 1908 and as part of the British Antarctic Territory since 1962. They are also claimed by the governments of Chile (since 1940, as part of the Antártica Chilena province) and Argentina (since 1943, as part of Argentine Antarctica, Tierra del Fuego Province). Several countries maintain research stations on the islands. Most of them are situated on King George Island, benefitting from the airfield of the Chilean base Eduardo Frei. There are sixteen research stations in different parts of the islands, with Chilean stations being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antarctica
Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost . Antarctica holds the record for the lowest measured temperature on Earth, . The coastal regions can reach temperatures over in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charybdis Cove
Charybdis Cove is the 1.2 km wide cove indenting for 580 m the northwest coast of Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica and entered between Organpipe Point to the north and Slab Point to the south. The feature is named after the Charybdis, a mythical Greek sea monster which wrecked ships and devoured sailors. Location The cove is centred at which is 16.25 km northeast of Siddins Point and 2.92 km south-southwest of Williams Point Williams Point is the point forming both the north extremity of Varna Peninsula and the northeast tip of Livingston Island in the South Shetland Islands, Antarctica. Separated from Zed Islands to the north by Iglika Passage. The discovery of ... (British mapping in 1968, and Bulgarian mapping in 2005 and 2009). Maps * L.L. Ivanov et al. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands. Scale 1:100000 topographic map. Sofia: Antarctic Place-names Commission of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Griffin Cove
Griffin Cove is the 800 m wide cove indenting for 260 m the northwest coast of Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica and entered between Gargoyle Bastion to the northeast and Organpipe Point to the southwest. The feature is named after the griffin, a legendary bird often portrayed as a monster. Location The cove is centred at which is 17.15 km northeast of Siddins Point and 1.95 km south by west of Williams Point Williams Point is the point forming both the north extremity of Varna Peninsula and the northeast tip of Livingston Island in the South Shetland Islands, Antarctica. Separated from Zed Islands to the north by Iglika Passage. The discovery of ... (British mapping in 1968, and Bulgarian mapping in 2005 and 2009). Maps * L.L. Ivanov et al. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands. Scale 1:100000 topographic map. Sofia: Antarctic Place-names Commission of Bulgaria, 2005. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dolerite
Diabase (), also called dolerite () or microgabbro, is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine-grained to aphanitic chilled margins which may contain tachylite (dark mafic glass). ''Diabase'' is the preferred name in North America, while ''dolerite'' is the preferred name in the rest of the English-speaking world, where sometimes the name ''diabase'' refers to altered dolerites and basalts. Some geologists prefer to avoid confusion by using the name ''microgabbro''. The name ''diabase'' comes from the French ', and ultimately from the Greek - meaning "act of crossing over, transition". Petrography Diabase normally has a fine but visible texture of euhedral lath-shaped plagioclase crystals (62%) set in a finer matrix of clinopyroxene, typically augite (20–29%), with minor olivine (3% up to 12% in olivine diabase), magnetite (2%), and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Organ Pipe
An organ pipe is a sound-producing element of the pipe organ that resonates at a specific pitch when pressurized air (commonly referred to as ''wind'') is driven through it. Each pipe is tuned to a specific note of the musical scale. A set of organ pipes of similar timbre comprising the complete scale is known as a rank; one or more ranks constitutes a stop. Construction Materials Organ pipes are generally made out of either metal or wood. Very rarely, glass, porcelain, plastic, paper, Papier-mâché, or even stone pipes may be seen. A historical organ in the Philippines has pipes made exclusively of bamboo. Metal Metal pipes are usually made of lead; for increased rigidity it is alloyed with tin along with trace amounts of antimony and copper. The percentage of each metal in the alloy influences the characteristics of the resulting pipe. A high proportion of tin results in a slightly brighter colour (optical colour, not timbre). In addition, high amounts of tin give a glea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slab Point
Slab Point is a rocky point on the northwest coast of Varna Peninsula, Livingston Island in the South Shetland Islands, Antarctica forming the north side of the entrance to Eliseyna Cove and the south side of the entrance to Charybdis Cove. The feature is descriptively named from the ice cliffs bounding it to the south. Location The point is located at which is 3.17 km northeast of Kotis Point, 1.5 km southeast of Balsha Island, 800 m south of Zavala Island, 1.23 km southwest of Organpipe Point and 3.47 km south-southwest of Williams Point Williams Point is the point forming both the north extremity of Varna Peninsula and the northeast tip of Livingston Island in the South Shetland Islands, Antarctica. Separated from Zed Islands to the north by Iglika Passage. The discovery of ... (British mapping in 1968, and Bulgarian in 2005 and 2009). Maps * L.L. Ivanov et al. Antarctica: Livingston Island and Greenwich Island, South Shetland Islands. Scale 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zavala Island
Zavala Island ( bg, остров Завала, ostrov Zavala, ) is an ice-free island in the Dunbar group off the northwest coast of Varna Peninsula on Livingston Island in the South Shetland Islands, Antarctica. It is extending , with surface area .L.L. IvanovAntarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2009. The area was visited by early 19th century sealers. The island is named after the settlement of Zavala and the homonymous Zavala Mountain in western Bulgaria. Location Zavala Island is located at , which is east-northeast of Balsha Island, southwest of Aspis Island, north of Slab Point, and west of Organpipe Point. Bulgarian topographic survey by the Tangra 2004/05 expedition. British mapping in 1968, Chilean in 1971, Argentine in 1980, and Bulgarian in 2005 and 2009. Maps * L.L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
