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Chapters: Geology of Nauru, Moqua Well, Command Ridge, Canals in Nauru, Moqua Caves, Ijuh. Source: Wikipedia. Pages: 24. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Geography of Nauru -An aerial image of Nauru in 2002 from the U.S. Department of Energy's Atmospheric Radiation Measurement Program. Regenerated vegetation covers 63% of land that was mined.Nauru is positioned in the Nauru Basin of the Pacific Ocean, on a part of the Pacific Plate that formed at a mid oceanic ridge at 132 Ma. From mid Eocene (35mya) to Oligocene times a submarine volcano built up over a hotspot, and formed a seamount composed of basalt. The seamount is over 4300 meters high. This hotspot was simultaneous with a major Pacific Plate reorganisation. The volcano was eroded to sealevel and a coral atoll grew on top to a thickness of about 500 meters. Coral near the surface has been dated from 5 Mya to 0.3 Mya. The original limestone has been dolomitised by magnesium from sea water. The coral was raised above sea level about 30 meters, and is now a dolomite limestone outcrop which was eroded in classic karst style into pinnacles up to 20 meters high. To at least a depth of 55 meters below sea level, the limestone has been dissolved forming cavities, sinkholes and caves. Holes on the topside of the island were filled up by a phosphate layer up to several meters thick. Anibare Bay was formed by the underwater collapse of the east side of the volcano. Buada Lagoon was formed by solution of the limestone when the sea level was lower, followed by collapse. Nauru is moving at 104 mm per year to the north west along with the Pacific Plate. Freshwater can be found in Buada lagoon, and also in some brackish ponds at the escarpment base in Ijuw and Anabar in the northeast. There is an underground lake in Moqua Cave in the...More: http://booksllc.net/?id=21304 ... Read more

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Nauru est un État insulaire d'Océaniesitué en Micronésie et composé d'une unique île peuplée de 13 770 habitants en juillet 2008. Située à 42 kilomètres au sud de l'équateur, l'île ne mesure que 21,3 km2 de superficie et est formée d'un plateau central peu élevé culminant à 71 mètres d'altitude au Command Ridge ceinturé par une étroite plaine côtière. Sur cette plaine se concentrent les logements et les infrastructures industrielle, agricoles, publiques et de transport, l'intérieur des terres étant majoritairement dévolu à l'extraction du minerai de phosphate qui constitue la seule richesse naturelle de Nauru. Le pays n'a pas de capitale officielle, toutefois Yaren est désigné de facto comme capitale car le district abrite le Parlement et par sa superficie, l'île est considérée comme la plus petite république du monde. L'île alors peuplée de quelques centaines de Nauruans aux origines micronésiennes et mélanésienne est approchée par le navigateur britannique John Fearn en 1798. Elle accède à l'indépendance le 31 janvier 1968. ... Read more

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High Quality Content by WIKIPEDIA articles! Nauru, officially the Republic of Nauru and formerly known as Pleasant Island, is an island nation in Micronesia in the South Pacific. Its nearest neighbor is Banaba Island in Kiribati, 300 km to the east. Nauru is the world's smallest island nation, covering just 21 square kilometres (8.1 square miles). Settled by Micronesian and Polynesian people, Nauru was annexed and claimed as a colony by the German Empire in the late 19th century. After World War I, Nauru became a League of Nations mandate administered by Australia, New Zealand, and the United Kingdom. During World War II, Nauru was occupied by Japanese troops who were bypassed by the Allied advance across the Pacific, and after the war ended, it entered into trusteeship again. Nauru was declared independent in 1968. ... Read more