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Guinée Maritime
Maritime Guinea (), also known as Lower Guinea, is one of the four natural regions of Guinea. It is located in the west of the country, between the Atlantic Ocean and the Fouta Djallon plateau. Conakry, Guinea's capital and largest city, is located in the region. Geography Maritime Guinea includes the Atlantic coast and coastal plain. The coast is indented with rias, or drowned river valleys, that form inlets, tidal marshes, mangrove forests, and estuaries, and numerous offshore islands. Conakry occupies Tombo Island and the adjacent Kaloum Peninsula. The region is bounded by the Atlantic Ocean to the west, Guinea Bissau to the northwest, the Fouta Djallon, also known as Middle Guinea, to the northeast and east, and Sierra Leone to the south. The region is a gentle coastal plain, between 50 and 80 km (30 and 40 miles) wide, and wider in the south than the north. the Fouta Djallon plateau rises from the plain, and several rivers, including the Fatala, Konkouré River, Konko ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinea
Guinea ( ),, fuf, 𞤘𞤭𞤲𞤫, italic=no, Gine, wo, Gine, nqo, ߖߌ߬ߣߍ߫, bm, Gine officially the Republic of Guinea (french: République de Guinée), is a coastal country in West Africa. It borders the Atlantic Ocean to the west, Guinea-Bissau to the northwest, Senegal to the north, Mali to the northeast, Cote d'Ivoire to the southeast, and Sierra Leone and Liberia to the south. It is sometimes referred to as Guinea-Conakry after its capital Conakry, to distinguish it from other territories in the eponymous region such as Guinea-Bissau and Equatorial Guinea. It has a population of million and an area of . Formerly French Guinea, it achieved independence in 1958. It has a history of military coups d'état.Nicholas Bariyo & Benoit FauconMilitary Faction Stages Coup in Mineral-Rich Guinea ''Wall Street Journal'' (September 5, 2021).Krista LarsonEXPLAINER: Why is history repeating itself in Guinea's coup? Associated Press (September 7, 2021).Danielle PaquettH ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laterite
Laterite is both a soil and a rock type rich in iron and aluminium and is commonly considered to have formed in hot and wet tropical areas. Nearly all laterites are of rusty-red coloration, because of high iron oxide content. They develop by intensive and prolonged weathering of the underlying parent rock, usually when there are conditions of high temperatures and heavy rainfall with alternate wet and dry periods. Tropical weathering (''laterization'') is a prolonged process of chemical weathering which produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils. The majority of the land area containing laterites is between the tropics of Cancer and Capricorn. Laterite has commonly been referred to as a soil type as well as being a rock type. This and further variation in the modes of conceptualizing about laterite (e.g. also as a complete weathering profile or theory about weathering) has led to calls for the term to be abandoned alto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fulani People
The Fula, Fulani, or Fulɓe people ( ff, Fulɓe, ; french: Peul, links=no; ha, Fulani or Hilani; pt, Fula, links=no; wo, Pël; bm, Fulaw) are one of the largest ethnic groups in the Sahel and West Africa, widely dispersed across the region. Inhabiting many countries, they live mainly in West Africa and northern parts of Central Africa, South Sudan, Darfur, and regions near the Red Sea coast in Sudan. The approximate number of Fula people is unknown due to clashing definitions regarding Fula ethnicity. Various estimates put the figure between 25 and 40 million people worldwide. A significant proportion of the Fula – a third, or an estimated 12 to 13 million – are pastoralists, and their ethnic group has the largest nomadic pastoral community in the world., Quote: The Fulani form the largest pastoral nomadic group in the world. The Bororo'en are noted for the size of their cattle herds. In addition to fully nomadic groups, however, there are also semisedentary Fulani —Fu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Susu People
The Susu people are a Mande-speaking ethnic group living primarily in Guinea and Northwestern Sierra Leone, particularly in Kambia District.Susu people Encyclopædia Britannica Influential in Guinea, smaller communities of Susu people are also found in the neighboring and . The Susu are a patrilineal society, predominantly Muslim, who favor endogamous cross-cousin marriages with polygynous households. They have a caste system like all Manding-speaking peoples of West Africa. The artisans such as smiths, carpenters, musicians, jewelers, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baga People
Baga may refer to: People * Baga (king) (3rd century BC), a king of ancient Mauretania * Ena Baga (1906–2004), English pianist * Kiri Baga (born 1995), American figure skater * Rita Baga, Canadian drag queen * Baga Chipz, stage name of Leo Loren, British drag queen Places * Baga, Bhola, Bangladesh * Baga, Patuakhali, Bangladesh * Baga, Borno * Baga, Goa, India ** Baga Creek, a tidal estuary in Baga * Bagà, Catalonia, Spain * Baga, Mainling County, Tibet * Baga, Doufelgou, Togo * Baga, Togo * , Tibet, whose transcription from Chinese is Baga * Mount Baga, Australia * Another name for Mbava in Solomon Islands Other uses * Baga (grape), a Portuguese wine grape variety * Baga (novel), by Robert Pinget * ''Baga Beach'' (film), 2013 Konkani-English film * Bagå Formation, on the island of Bornholm, Denmark * Baga people, of Guinea ** Baga language * British Amateur Gymnastics Association * A synonym for the Portuguese wine grape Alicante Bouschet See also * Baga de Secre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinean Mangroves
The Guinean mangroves are a coastal ecoregion of mangrove swamps in rivers and estuaries near the ocean of West Africa from Senegal to Sierra Leone. Location and description Guinean mangroves can be found: in the Saloum River and Casamance deltas in Senegal; in the lower Gambia River basin; much of the coast of Guinea-Bissau, including the Cacheu River, Cacheu and Mansoa Rivers; across the border in northern Guinea; and much of the coast of Sierra Leone including the Sherbro River. Mangroves thrive on flat coastal inlets and estuary, estuaries where the ocean tides wash warm salt water high upriver, in this ecoregion as far as 100 km, for example in the Farim River, Cacheu River of Guinea-Bissau. Flora The mangroves have a varied composition with ''Rhizophora'', ''Laguncularia racemosa'' and ''Conocarpus erectus'' growing up to 10m tall among larger areas of ''Rhizophora'' and ''Avicennia''. The tallest trees may be and form the equivalent of gallery forests along the cre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Guinean Lowland Forests
The Western Guinean lowland forests ecoregion (WWF #AT0130) is a tropical moist broadleaf forest ecoregion of West Africa. It is centered on Liberia, with portions in surrounding countries. It is the westernmost tropical rainforest in Africa, and has high levels of species endemism, with over 200 species of endemic plants. Geography The ecoregion includes the lowland forests extending from the Atlantic Ocean a few hundred kilometres inland, and from western Côte d'Ivoire across Liberia, southeastern Guinea, most of Sierra Leone, and into southwest Guinea. The terrain is relatively flat, with a mean elevation of 2,225 meters and a few isolated mountains that reach a high point of . Major rivers include the Sewa River, Mano River, Saint Paul River, Cavalla River and Sassandra River. The soils are poor, heavily leached lateritic. The Sassandra River of Côte d'Ivoire separates the Western Guinean forests from the Eastern Guinean forests which lie to the east. Inland and to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinean Forest-savanna Mosaic
Guinea ( ),, fuf, 𞤘𞤭𞤲𞤫, italic=no, Gine, wo, Gine, nqo, ߖߌ߬ߣߍ߫, bm, Gine officially the Republic of Guinea (french: République de Guinée), is a coastal country in West Africa. It borders the Atlantic Ocean to the west, Guinea-Bissau to the northwest, Senegal to the north, Mali to the northeast, Cote d'Ivoire to the southeast, and Sierra Leone and Liberia to the south. It is sometimes referred to as Guinea-Conakry after its capital Conakry, to distinguish it from other territories in the eponymous region such as Guinea-Bissau and Equatorial Guinea. It has a population of million and an area of . Formerly French Guinea, it achieved independence in 1958. It has a history of military coups d'état.Nicholas Bariyo & Benoit FauconMilitary Faction Stages Coup in Mineral-Rich Guinea ''Wall Street Journal'' (September 5, 2021).Krista LarsonEXPLAINER: Why is history repeating itself in Guinea's coup? Associated Press (September 7, 2021).Danielle PaquettHere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inter-Tropical Convergence Zone
The Intertropical Convergence Zone (ITCZ ), known by sailors as the doldrums or the calms because of its monotonous windless weather, is the area where the northeast and the southeast trade winds converge. It encircles Earth near the thermal equator though its specific position varies seasonally. When it lies near the geographic Equator, it is called the near-equatorial trough. Where the ITCZ is drawn into and merges with a monsoonal circulation, it is sometimes referred to as a monsoon trough, a usage that is more common in Australia and parts of Asia. Meteorology The ITCZ was originally identified from the 1920s to the 1940s as the ''Intertropical Front'' (''ITF''), but after the recognition in the 1940s and the 1950s of the significance of wind field convergence in tropical weather production, the term ''Intertropical Convergence Zone'' (''ITCZ'') was then applied. The ITCZ appears as a band of clouds, usually thunderstorms, that encircle the globe near the Equator. In the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aluminum Hydroxide
Aluminium hydroxide, Al(OH)3, is found in nature as the mineral gibbsite (also known as hydrargillite) and its three much rarer polymorphs: bayerite, doyleite, and nordstrandite. Aluminium hydroxide is amphoteric, i.e., it has both basic and acidic properties. Closely related are aluminium oxide hydroxide, AlO(OH), and aluminium oxide or alumina (Al2O3), the latter of which is also amphoteric. These compounds together are the major components of the aluminium ore bauxite. Aluminium hydroxide also forms a gelatinous precipitate in water. Structure Al(OH)3 is built up of double layers of hydroxyl groups with aluminium ions occupying two-thirds of the octahedral holes between the two layers. Four polymorphs are recognized. All feature layers of octahedral aluminium hydroxide units, with hydrogen bonds between the layers. The polymorphs differ in terms of the stacking of the layers. All forms of Al(OH)3 crystals are hexagonal : *gibbsite is also known as γ-Al(OH)3 or α-Al(OH) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Oxide
Iron oxides are chemical compounds composed of iron and oxygen. Several iron oxides are recognized. All are black magnetic solids. Often they are non-stoichiometric. Oxyhydroxides are a related class of compounds, perhaps the best known of which is rust. Iron oxides and oxyhydroxides are widespread in nature and play an important role in many geological and biological processes. They are used as iron ores, pigments, catalysts, and in thermite, and occur in hemoglobin. Iron oxides are inexpensive and durable pigments in paints, coatings and colored concretes. Colors commonly available are in the "earthy" end of the yellow/orange/red/brown/black range. When used as a food coloring, it has E number E172. Stoichiometries Iron oxides feature as ferrous ( Fe(II)) or ferric ( Fe(III)) or both. They adopt octahedral or tetrahedral coordination geometry. Only a few oxides are significant at the earth's surface, particularly wüstite, magnetite, and hematite. * Oxides of FeII ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gneiss
Gneiss ( ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures and pressures than schist. Gneiss nearly always shows a banded texture characterized by alternating darker and lighter colored bands and without a distinct cleavage. Gneisses are common in the ancient crust of continental shields. Some of the oldest rocks on Earth are gneisses, such as the Acasta Gneiss. Description Orthogneiss from the Czech Republic In traditional English and North American usage, a gneiss is a coarse-grained metamorphic rock showing compositional banding (gneissic banding) but poorly developed schistosity and indistinct cleavage. In other words, it is a metamorphic rock composed of mineral grains easily seen with the unaided eye, which form obvious compositional layers, but which has only a weak tendency to fracture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
