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Mining In Guinea
The mining industry of Guinea was developed during colonial rule. The minerals extracted consisted of iron, gold, diamond, and bauxite. Guinea ranks first in the world in bauxite reserves and 6th in the extraction of high-grade bauxite, the aluminium ore. The mining industry and exports of mining products accounted for 17% of Guinea's gross domestic product (GDP) in 2010. Mining accounts for over 50% of its exports. The country accounts for 94% of Africa's mining production of bauxite. The large mineral reserve, which has mostly remained untapped, is of immense interest for international firms. In recent years, the mining industry in Guinea has suffered from controversy, specifically with respect to the iron ore mining industry and the block of mines in Northern Guinea. In 2019, the country was the world's 3rd largest producer of bauxite. In 2023, Guinea became the top source of bauxite for China. History The mining tradition of Guinea is ancient and can be traced to a period ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guinea Siguiri Miner Woman
Guinea, officially the Republic of Guinea, 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, Côte 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 Guinea (region), eponymous region, such as Guinea-Bissau and Equatorial Guinea. Guinea has a population of 14 million and an area of . Formerly French Guinea, it achieved independence in 1958. Guinea has a history of military coup d'état, coups d'état.Nicholas Bariyo & Benoit FauconMilitary Faction Stages Coup in Mineral-Rich Guinea ''Wall Street Journal'' (5 September 2021).Krista LarsonEXPLAINER: Why is history repeating itself in Guinea's coup? Associated Press (7 September 2021).Danielle PaquettHere's what we know about the unfolding coup in Guinea ''Washington Post'' (6 Septembe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Politics Of Guinea
Politics of Guinea takes place in a framework of a presidential representative democratic republic, whereby the President of Guinea is both head of state and head of government of Guinea. Executive power is exercised by the government. Legislative power is vested in both the government and the National Assembly. History Conté era (1984–2008) A military dictatorship, led by then-Lt. Col. Lansana Conté and styling itself the Military Committee of National Recovery (CMRN), took control of Guinea in April 1984, shortly after the death of independent Guinea's first president, Sékou Touré. With Conté as president, the CMRN set about dismantling Touré's oppressive regime, abolishing the authoritarian constitution, dissolving the sole political party and its mass youth and women's organizations, and announcing the establishment of the Second Republic. The new government released all political prisoners and committed itself to the protection of human rights. In order to reve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compagnie Des Bauxites De Guinée
Compagnie des bauxites de Guinée (CBG) is a Guinean mining company. Since 1963 it has extracted bauxite from the notable mine in Sangarédi, in Boké Region in Guinea. It is 49% owned by the Guinean State, with the remainder owned by the Boké Investment Company, a 100%-owned subsidiary of Halco Mining, a consortium opened in 1962 by Harvey Aluminum Company to run mining operations in Guinea. Halco's stock is owned by Alcoa (45%), Rio Tinto Alcan (45%) and Dadco Investments (10%). Guinea is the world's 5th largest producer of bauxite, yet the country holds the world's largest reserves of the valuable ore used to produce aluminum. Estimates of the country's reserves rise as high as 25 billion tons, or the majority of the world's bauxite. Bauxite mining in Guinea Guinea possesses a third of the best bauxite reserves in the world, or about 20 billion tons, with a high content (45-62 %) of alumina and a low silica content (0.8-2 %). Despite being ranked second after Australia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reynolds Group Holdings
Reynolds Group Holdings was a New Zealand–based packaging company with roots in the former Reynolds Metals Company, which was the second-largest aluminum company in the United States, and the third-largest in the world. Reynolds Metals was acquired by Alcoa in Reynolds Group Holdings became Pactiv Evergreen through an IPO in 2020. Reynolds Metals became known for the consumer product Reynolds Wrap foil, as well as for developing and promoting new uses for aluminum. Its RV '' Aluminaut'' submarine was operated by Reynolds Submarine Services Corporation. It was headquartered for most of its existence in Richmond, Virginia; the Modernist style Reynolds Metals Company International Headquarters was built there in 1958. History The Reynolds Metals Company was founded in 1919 as the U.S. Foil Company in Louisville, Kentucky, by Richard S. Reynolds Sr., nephew of tobacco king R. J. Reynolds. Initially, the new company supplied lead and tin foil wrappers to cigarette and cand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fria
Fria is a town and Sub-prefecture in Lower Guinea, lying north of Conakry near the Amaria Dam on the Konkouré River. As of 2014 it had a population of 61,691 people. Overview There are some variations in the name of the town: Friguia, Kimbo or Kimbo-city. Fria is known for its local caves, the Grottes de Bogoro and the Grottes de Konkouré). The town's economy relies heavily upon bauxite mining and aluminum production. The town of Fria was built around a company called Kimbo-Fria, now ACG Fria (Aluminum Company of Guinea), Africa's first aluminum factory. ACG-Fria is the only operating alumina refinery in Guinea, producing 600,000 tonnes of alumina and 2.8 million tonnes of bauxite per year. The president of Guinea, Lansana Conte, signed an agreement with RUSAL privatizing the bauxite and aluminum complex in Fria run by the Alumina Company of Guinea. This will allow for eventual doubling of the company's capacity. Transportation Fria Airport serves the city. Railwa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alumina Company Of Guinea
The Alumina Company of Guinea (ACG-Fria) is a bauxite mining company based in Fria, Guinea. They are the main aluminium producing company in the country, and was once part-owned by the government of Guinea in Conakry and by the Reynolds Metals Company of Richmond, Virginia Richmond ( ) is the List of capitals in the United States, capital city of the Commonwealth (U.S. state), U.S. commonwealth of Virginia. Incorporated in 1742, Richmond has been an independent city (United States), independent city since 1871. ..., of the United States. However, in 2006 the president of Guinea, Lansana Conte signed an agreement with Russian giant, United Company RUSAL privatizing the bauxite and aluminum complex in Fria. This will allow for eventual doubling of the company's capacity. External linksMbendi.com Mining companies of Guinea Aluminium companies of Guinea Rusal Boké Region {{guinea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bauxite Mining
Bauxite () is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (), boehmite (γ-AlO(OH)), and diaspore (α-AlO(OH)), Mixture, mixed with the two iron oxides goethite (FeO(OH)) and haematite (), the aluminium Clay minerals, clay mineral kaolinite () and small amounts of anatase () and ilmenite ( or ). Bauxite appears dull in Lustre (mineralogy), luster and is reddish-brown, white, or tan. In 1821, the French people, French geologist Pierre Berthier discovered bauxite near the village of Les Baux-de-Provence, Les Baux in Provence, southern France. Formation Numerous classification schemes have been proposed for bauxite but, , there was no consensus. Vadász (1951) distinguished Laterite, lateritic bauxites (silicate bauxites) from karst bauxite ores (carbonate bauxites): * The carbonate bauxites occur predominantly in Europe, Guyana, Suriname, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boké Region
Boké Region () is located in western Guinea. It is bordered by the countries of Senegal and Guinea-Bissau and the Guinean regions of Kindia and Labé. Its capital is the city of Boké. Administrative divisions Boké Region is divided into five prefectures; which are further sub-divided into 37 sub-prefectures: * Boffa Prefecture (8 sub-prefectures) * Boké Prefecture (10 sub-prefectures) * Fria Prefecture (4 sub-prefectures) * Gaoual Prefecture (8 sub-prefectures) * Koundara Prefecture (7 sub-prefectures) Mining reserves Boké Region is the home to a great part of Guinea's aluminium (or bauxite) reserves. At least two of the country's largest mining facilities are located there: * Compagnie des Bauxites de Guinée, or CBG, which is operated by Halco Mining, an international and intercorporate aluminium mining entity. * Alumina Company of Guinea, or ACG, operating the Friguia bauxite-alumina complex in Fria Prefecture. See also * Aluminium in Africa *Regions of G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overburden
In mining, overburden (also called waste or spoil) is the material that lies above an area that lends itself to economical exploitation, such as the rock, soil, and ecosystem that lies above a coal seam or ore body. Overburden is distinct from tailings, the material that remains after economically valuable components have been extracted from the generally finely milled ore. Overburden is removed during surface mining, but is typically not contaminated with toxic components. Overburden may also be used to restore an exhausted mining site during reclamation. Interburden is material that lies between two areas of economic interest, such as the material separating coal seams within strata.Peng, Syd S. (1986) ''Coal Mine Ground Control'' (2nd edition), Wiley, New York, page 303, Analogous uses Overburden is also used for all soil and ancillary material above the bedrock horizon in a given area. By analogy, overburden is also used to describe the soil and other material that lies a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nickel
Nickel is a chemical element; it has symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive, but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further corrosion. Even so, pure native nickel is found in Earth's crust only in tiny amounts, usually in ultramafic rocks, and in the interiors of larger nickel–iron meteorites that were not exposed to oxygen when outside Earth's atmosphere. Meteoric nickel is found in combination with iron, a reflection of the origin of those elements as major end products of supernova nucleosynthesis. An iron–nickel mixture is thought to compose Earth's outer and inner cores. Use of nickel (as natural meteoric nickel–iron alloy) has been traced as far back as 3500 BCE. Nickel was first isolated and classifie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Manganese
Manganese is a chemical element; it has Symbol (chemistry), symbol Mn and atomic number 25. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. Manganese was first isolated in the 1770s. It is a transition metal with a multifaceted array of industrial alloy uses, particularly in stainless steels. It improves strength, workability, and resistance to wear. Manganese oxide is used as an oxidising agent, as a rubber additive, and in glass making, fertilisers, and ceramics. Manganese sulfate can be used as a fungicide. Manganese is also an essential human dietary element, important in macronutrient metabolism, bone formation, and free radical defense systems. It is a critical component in dozens of proteins and enzymes. It is found mostly in the bones, but also the liver, kidneys, and brain. In the human brain, the manganese is bound to manganese metalloproteins, most notably glutamine synthetase in astrocytes. Manganese is commonly found in labo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science), crystal forms of calcium carbonate . Limestone forms when these minerals Precipitation (chemistry), 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 (rock), dolomite, a closely related rock, which contains a high percentage of the mineral Dolomite (mine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
