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Geography Of Guadeloupe
Guadeloupe is an archipelago of more than 12 islands, as well as islets and rocks situated where the northeastern Caribbean Sea meets the western Atlantic Ocean. It is located in the Leeward Islands in the northern part of the Lesser Antilles, a partly volcanic island arc. To the north lie Antigua and Barbuda and the British Overseas Territory of Montserrat, with Dominica lying to the south. The two main islands are Basse-Terre (west) and Grande-Terre (east), which form a butterfly shape as viewed from above, the two 'wings' of which are separated by the Grand Cul-de-Sac Marin, and Petit Cul-de-Sac Marin. More than half of Guadeloupe's land surface consists of the 847.8 km2 Basse-Terre. The island is mountainous, containing such peaks as Mount Sans Toucher (4,442 feet; 1,354 metres) and Grande Découverte (4,143 feet; 1,263 metres), culminating in the active volcano La Grande Soufrière, the highest mountain peak in the Lesser Antilles with an elevation of . In c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guadeloupe NASA 61
Guadeloupe (; ; gcf, label=Antillean Creole, Gwadloup, ) is an archipelago and overseas department and region of France in the Caribbean. It consists of six inhabited islands—Basse-Terre, Grande-Terre, Marie-Galante, La Désirade, and the two inhabited Îles des Saintes—as well as many uninhabited islands and outcroppings. It is south of Antigua and Barbuda and Montserrat, north of the Commonwealth of Dominica. The region's capital city is Basse-Terre, located on the southern west coast of Basse-Terre Island; however, the most populous city is Les Abymes and the main centre of business is neighbouring Pointe-à-Pitre, both located on Grande-Terre Island. It had a population of 384,239 in 2019.Populations légales 2019: 971 Guadeloupe INSEE Like the other overseas departments, it is a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Grande Soufrière
La Grande Soufrière ( en, "big sulfur outlet"), is an active stratovolcano on the French island of Basse-Terre, in Guadeloupe. It is the highest mountain peak in the Lesser Antilles, rising 1,467 m high. The last magmatic eruption was in 1580±50 during which the current lava dome was emplaced. More recent eruptions have been phreatic in type. On February 8, 1843, an eruption of La Grande Soufrière caused by an earthquake killed over 5,000 people. Significant seismic activity in 1976 led to a mass evacuation of the island's 72,000 residents. There was a bitter, and well-publicized, controversy between scientists Claude Allègre and Haroun Tazieff on whether evacuation should occur. Allègre held that inhabitants should be evacuated, just in case, while Tazieff held that the ''Soufrière'' was harmless. The prefect decided to evacuate, erring on the side of covering his back. The volcano erupted on August 30, 1976, but much less severely than predicted by the Allègre side ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oceanic Crust
Oceanic crust is the uppermost layer of the oceanic portion of the tectonic plates. It is composed of the upper oceanic crust, with pillow lavas and a dike complex, and the lower oceanic crust, composed of troctolite, gabbro and ultramafic cumulates. The crust overlies the rigid uppermost layer of the mantle. The crust and the rigid upper mantle layer together constitute oceanic lithosphere. Oceanic crust is primarily composed of mafic rocks, or sima, which is rich in iron and magnesium. It is thinner than continental crust, or sial, generally less than 10 kilometers thick; however, it is denser, having a mean density of about 3.0 grams per cubic centimeter as opposed to continental crust which has a density of about 2.7 grams per cubic centimeter. The crust uppermost is the result of the cooling of magma derived from mantle material below the plate. The magma is injected into the spreading center, which consists mainly of a partly solidified crystal mush derived from earlier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subduction
Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle. A region where this process occurs is known as a subduction zone, and its surface expression is known as an arc-trench complex. The process of subduction has created most of the Earth's continental crust. Rates of subduction are typically measured in centimeters per year, with the average rate of convergence being approximately two to eight centimeters per year along most plate boundaries. Subduction is possible because the cold oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle underlying the cold, rigid lithosphere. Once initiated, stable subduction is driven mostly by the negative buoyancy of the de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lesser Antilles Volcanic Arc
The Lesser Antilles Volcanic Arc is a volcanic arc that forms the eastern boundary of the Caribbean Plate. It is part of a subduction zone, also known as the Lesser Antilles subduction zone, where the oceanic crust of the North American Plate is being subducted under the Caribbean Plate.The University of the West Indies Seismic Research CentreCaribbean Volcanoes Accessed: November 18, 2022. This subduction process formed a number of volcanic islands, from the Virgin Islands in the north to the islands off the coast of Venezuela in the south. The Lesser Antilles Volcanic Arc includes 21 'active' volcanoes, notably Soufriere Hills on Montserrat; Mount Pelée on Martinique; La Grande Soufrière on Guadeloupe; Soufrière Saint Vincent on Saint Vincent; Mount Scenery on Saba; and the submarine volcano Kick 'em Jenny which lies about north of Grenada. References * Macdonald, R., C.J. Hawkesworth, and E. Heath. (2000). The Lesser Antilles volcanic chain: a study in arc magmatism. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caribbean Plate
The Caribbean Plate is a mostly oceanic tectonic plate underlying Central America and the Caribbean Sea off the north coast of South America. Roughly 3.2 million square kilometers (1.2 million square miles) in area, the Caribbean Plate borders the North American Plate, the South American Plate, the Nazca Plate and the Cocos Plate. These borders are regions of intense seismic activity, including frequent earthquakes, occasional tsunamis, and volcanic eruptions. Boundary types The northern boundary with the North American Plate is a transform or strike-slip boundary which runs from the border area of Belize, Guatemala (Motagua Fault), and Honduras in Central America, eastward through the Cayman trough along the Swan Islands Transform Fault before joining the southern boundary of the Gonâve Microplate. East of the Mid-Cayman Rise this continues as the Walton fault zone and the Enriquillo–Plantain Garden fault zone into eastern Hispaniola. From there it continues into Puerto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terre-de-Haut Island
Terre-de-Haut Island (; gcf, label=Antillean Creole, Tèdého; also formerly known as ''Petite Martinique'') is the easternmost island in the Îles des Saintes , part of the archipelago of Guadeloupe. Like name of neighboring Terre-de-Bas, name Terre-de-Haut comes from the maritime vocabulary, which called the islands exposed to the "highland" winds and those protected from the wind, "lowlands". Geography Terre-de-Haut is separated from Terre-de-Bas by a narrow channel of . Besides Terre-de-Bas, several small islands surround Terre-de-Haut. It is an island of dominated in the north by Morne Mire hill () and Morel hill (). Morel is on the North of the island, between the bay of Marigot and the bay of Pompierre. There is an ancient fortress there, Caroline battery. The Chameau , in the southwest, is the highest elevation in the archipelago. It is covered with forest. On the summit, there is a watchtower, called La tour modèle. Chameau is the property of the Conservatoire d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terre-de-Bas
Terre-de-Bas (; gcf, label=Antillean Creole, Tèdéba) is a commune in the French overseas department and region of Guadeloupe, in the Lesser Antilles. Terre-de-Bas is made up of Terre-de-Bas Island and several uninhabited islands and islets in the group of Les Saintes islands, to the southwest of Guadeloupe's mainland. Education Public preschools and primary schools:LISTE DES ECOLES PUBLIQUES ET PRIVEES SOUS CONTRAT " . Retrieved on 10 March 2018. * Ecole primaire Petites Anses * Ecole maternelle Grande Anse See also *Communes of the Guadeloupe department
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Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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