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North Fiji Basin
The North Fiji Basin (NFB) is an oceanic basin west of Fiji in the south-west Pacific Ocean. It is an actively spreading back-arc basin delimited by the Fiji islands to the east, the inactive Vitiaz Trench to the north, the Vanuatu/New Hebrides island arc to the west, and the Hunter fracture zone to the south. Roughly triangular in shape with its apex located at the northern end of the New Hebrides Arc, the basin is actively spreading southward and is characterised by three spreading centres and an oceanic crust younger than 12 . The opening of the NFB began when a slab roll-back was initiated beneath the New Hebrides and the island arc started its clockwise rotation. The opening of the basin was the result of the collision between the Ontong Java Plateau and the Australian Plate along the now inactive Solomon–Vitiaz subduction system north of the NFB. The NFB is the largest and most developed back-arc basin of the south-west Pacific. It is opening in a complex geologica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Fiji Basin NOAA
North is one of the four compass points or cardinal directions. It is the opposite of south and is perpendicular to east and west. ''North'' is a noun, adjective, or adverb indicating direction or geography. Etymology The word ''north'' is related to the Old High German ''nord'', both descending from the Proto-Indo-European unit *''ner-'', meaning "left; below" as north is to left when facing the rising sun. Similarly, the other cardinal directions are also related to the sun's position. The Latin word ''borealis'' comes from the Greek '' boreas'' "north wind, north", which, according to Ovid, was personified as the wind-god Boreas, the father of Calais and Zetes. ''Septentrionalis'' is from ''septentriones'', "the seven plow oxen", a name of ''Ursa Major''. The Greek ἀρκτικός (''arktikós'') is named for the same constellation, and is the source of the English word ''Arctic''. Other languages have other derivations. For example, in Lezgian, ''kefer'' can mean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Hebrides Plate
The New Hebrides Plate, sometimes called the Neo-Hebridean Plate, is a minor tectonic plate located in the Pacific Ocean, near the island country of Vanuatu. The plate is bounded on the southwest by the Indo-Australian Plate which is subducting below it. The New Hebrides Trench is seismically active, producing See also * List of earthquakes in Vanuatu Earthquakes in Vanuatu are frequent and are sometimes accompanied by tsunami, though these events are not often destructive. The archipelago, which was formerly known as New Hebrides, lies atop a complex and active plate boundary in the southwester ... References Citations * {{DEFAULTSORT:New Hebrides Plate Tectonic plates Geology of the Pacific Ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aneityum
Aneityum (also known as Anatom or Keamu) is the southernmost island of Vanuatu, in the province of Tafea. Geography Aneityum is the southernmost island of Vanuatu (not counting the Matthew and Hunter Islands, which are disputed with New Caledonia, but considered by the people of Aneityum Island part of their custom ownership). Its southeastern cape Nétchan Néganneaing is the southernmost point of land in Vanuatu, more southerly than the southern satellite islet Inyeug. The latter, however, is surrounded by Intao Reef, that extends even further south, albeit submerged, thus being the southernmost feature of Vanuatu. The island is in size. It rises to an elevation of in Mount Inrerow Atamein. The larger of its two villages is Anelcauhat ( Anelghowhat), on the south side. Population Aneityum had a population of 915 in 2009. This population is believed to have been between 9,000 and 20,000 prior to the arrival of the Europeans, in 1793. However, introduced diseases and black ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hunter Ridge
The Hunter Ridge (previously known as Hunter Island Ridge, Matthew Ridge), is an active volcanic arc oceanic ridge located on the oceanic New Hebrides Plate in the south-west Pacific Ocean extending at least . It defines the south-western limit of the North Fiji Basin (NFB) and is an area of unique range in volcanic geochemistry, which transpires to have been due partially to a new, previously unrecognised, subduction zone. Geography The ridge contains Matthew Island and Hunter Island and extends from southern Vanuatu near the Volsmar seamount via the region of Ceva-i-Ra (Conway Reef) towards Fiji. Its length on this definition is about but earlier work included other parts of the Hunter Fracture Zone that are now known to be discontinuous topographically and on such historic definitions the length approached or more. The West Matthew volcano had its the most recent eruption in 1956, still had steam admissions in 1983, having formed a new volcanic cone from below the sea surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mya (unit)
Mya may refer to: Brands and product names * Mya (program), an intelligent personal assistant created by Motorola * Mya (TV channel), an Italian Television channel * Midwest Young Artists, a comprehensive youth music program Codes * Burmese language, ISO 639-3 code is * Moruya Airport's IATA code * The IOC, license plate, and UNDP country code for Myanmar ("MYA") People * Mya (given name) * Mya (singer) (Mya Marie Harrison, born 1979), an American R&B singer-songwriter and actress * Bo Mya (1927–2006), nom de guerre of a Myanmar rebel leader, chief rapist of the Karen National Union Other uses * ''Mýa'' (album), a 1998 album by Mýa * ''Mya'' (bivalve), a genus of soft-shell clams * MYA (unit) for "million years ago", a science-related unit of time used in astronomy, geology and biology See also * A (motor yacht) (M/Y A), a superyacht * Maia (other) * Maya (other) Maya may refer to: Civilizations * Maya peoples, of southern Mexico and norther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Louisville Seamount Chain
The Louisville Ridge, also known as the Louisville Seamount Chain, is an underwater chain of over 70 seamounts located in the Southwest portion of the Pacific Ocean. As one of the longest seamount chains on Earth it stretches some Vanderkluysen, L.; Mahoney, J. J.; Koppers, A. A.; and Lonsdale, P. F. (2007)Geochemical Evolution of the Louisville Seamount Chain American Geophysical Union, Fall Meeting 2007, abstract #V42B-06. from the Pacific-Antarctic Ridge northwest to the Tonga-Kermadec Trench, where it subducts under the Indo-Australian Plate as part of the Pacific Plate. The chain may have been formed by movement of the Pacific Plate over the Louisville hotspot or by leakage of magma from the shallow mantle up through the Eltanin fracture zone, which it follows closely. Depth-sounding data first revealed the existence of the seamount chain in 1972. Seamounts The Louisville Ridge includes the following: * Burton Seamount * Currituck Seamount * Danseur Seamount * Darvin G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lau Basin
The Lau Basin is a back-arc basin (also addressed as "interarc basin") at the Australian-Pacific plate boundary. It is formed by the Pacific plate subducting under the Australian plate. The Tonga-Kermadec Ridge, a frontal arc, and the Lau-Colville Ridge, a Back-arc region, remnant arc, sit to the eastern and western sides of the basin, respectively.Gill, J. B. 1976. "Composition and Age of Lau Basin and Ridge Volcanic Rocks: Implications for Evolution of an Interarc Basin and Remnant Arc." Bulletin of the Geological Society of America 87 (10): 1384–1395. History Lau Basin is a young basin (<= 5 m.y. old) that separates a previously continuous island arc by Extensional tectonics, extensional rifting. During the Pliocene, the Pacific plate was subducting beneath the Australian plate. The slab of the Pacific plate melted as it was thrust down, and then rose to form the original Tonga-Kermadec Ridge. Around 25 Ma B.P, the Pacific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
West Torres Plateau
West or Occident is one of the four cardinal directions or points of the compass. It is the opposite direction from east and is the direction in which the Sun sets on the Earth. Etymology The word "west" is a Germanic word passed into some Romance languages (''ouest'' in French, ''oest'' in Catalan, ''ovest'' in Italian, ''oeste'' in Spanish and Portuguese). As in other languages, the word formation stems from the fact that west is the direction of the setting sun in the evening: 'west' derives from the Indo-European root ''*wes'' reduced from ''*wes-pero'' 'evening, night', cognate with Ancient Greek ἕσπερος hesperos 'evening; evening star; western' and Latin vesper 'evening; west'. Examples of the same formation in other languages include Latin occidens 'west' from occidō 'to go down, to set' and Hebrew מַעֲרָב maarav 'west' from עֶרֶב erev 'evening'. Navigation To go west using a compass for navigation (in a place where magnetic north is the same dire ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
D'Entrecasteaux Ridge
The d'Entrecasteaux () Ridge (DER) is a double oceanic ridge in the south-west Pacific Ocean, north of New Caledonia and west of Vanuatu Islands. It forms the northern extension of the New Caledonia–Loyalty Islands arc, and is now actively subducting under the Vanuatu/New Hebrides arc. The subduction of the DER is responsible for the anomalous morphology of the central part of New Hebrides arc whose movement more closely matches the north-east direction of the subducting Australian Plate (the rest of the New Hebrides arc rotate west in front of the southward expanding North Fiji Basin). The name honours French naval officer Antoine Bruni d'Entrecasteaux, explorer of the south-west Pacific in the late 18th century. Geological setting The DER extends north from the New Caledonia ridge to the New Hebrides/Vanuatu Trench and thus separates the North Loyalty Basin ( ) to the south from the West Santos Basin ( bsl) to the north. The DER has a western and an eastern part with distin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matthew And Hunter Islands
Hunter Island and Matthew Island are two small and uninhabited high islands in the South Pacific, located east of New Caledonia and south-east of Vanuatu archipelago. Hunter Island and Matthew Island, apart, are claimed by Vanuatu as part of Tafea Province, and considered by the people of Aneityum part of their custom ownership, and were claimed by France as part of New Caledonia. Small, arid, without fresh water and not easily accessible, the islands had no interest for Britain or France during their colonisation of the Pacific in the course of the 18th and 19th centuries. France officially annexed both islands in 1929. In 1965, the United Kingdom also claimed the two islands, as part of the New Hebrides. France conducted a symbolic occupation in 1975. In 1980, on its independence, Vanuatu claimed sovereignty, but made no occupation of the islands. In 1979, Météo-France set up an automatic weather station on one of the islands, and the French Navy regularly visits bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banks Islands
The Banks Islands (in Bislama ''Bankis'') are a group of islands in northern Vanuatu. Together with the Torres Islands to their northwest, they make up the northernmost province of Torba. The island group lies about north of Maewo, and includes Gaua and Vanua Lava, two of the 13 largest islands in Vanuatu. In 2009, the islands had a population of 8,533. The island group's combined land area is 780 km2. Geography The largest island is Gaua (formerly called Santa Maria), which has a rugged terrain, rising to Mount Gharat, an active volcano at the centre of the island, at . Gaua's freshwater Lake Letas, in its volcanic crater, is the largest lake in Vanuatu. A slightly smaller island in the group, Vanua Lava, is higher, at ; it too has an active volcano: Mount Suretamate (also spelled Süretimiat or Sere'ama, ). To the east of Vanua Lava are two islets in the groupo, Ravenga and Kwakea (also spelled Qakea). Sola, the provincial capital, is on Vanua Lava. The third largest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
