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Mining Industry Of The Gambia
Mining in the Gambia, which is limited to the production of clay, laterite, sand and gravel, silica sand, and zircon, does not play a significant role in the Gambian economy.Omayra Bermúdez-Lugo"The Mineral Industries of the Gambia, Guinea-Bissau, and Senegal" ''2005 Minerals Yearbook''. U.S. Geological Survey (August 2007). ''This article incorporates text from this U.S. government source, which is in the public domain.'' Legal framework The Department of State for Trade, Industry, and Employment is the government entity responsible for the administration of the mining sector. A new mineral and mining law proposed in 2001 was still under consideration for approval by the Government as of 2005. The government has put in place policies to attract foreign direct investment, including free repatriation of capital and profits, special Investment certificates, and constitutional guarantees and safeguards against nationalization and expropriation of investments. Mining As of 2005, Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining
Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic viability of investing in the equipment, labor, and energy required to extract, refine and transport the materials found at the mine to manufacturers who can use the material. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain most materials that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carnegie Corporation Ltd
Carnegie may refer to: People *Carnegie (surname), including a list of people with the name *Clan Carnegie, a lowland Scottish clan Institutions Named for Andrew Carnegie * Carnegie Building (Troy, New York), on the campus of Rensselaer Polytechnic Institute *Carnegie College, in Dunfermline, Scotland, a former further education college *Carnegie Community Centre, in downtown Vancouver, British Columbia * Carnegie Council for Ethics in International Affairs *Carnegie Endowment for International Peace, a global think tank with headquarters in Washington, DC, and four other centers, including: ** Carnegie Middle East Center, in Beirut **Carnegie Europe, in Brussels **Carnegie Moscow Center *Carnegie Foundation (other), any of several foundations *Carnegie Hall, a concert hall in New York City *Carnegie Hall, Inc., a regional cultural center in Lewisburg, West Virginia * Carnegie Hero Fund * Carnegie Institution for Science, also called Carnegie Institution of Washington ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In The Gambia
Mining in the Gambia, which is limited to the production of clay, laterite, sand and gravel, silica sand, and zircon, does not play a significant role in the Gambian economy.Omayra Bermúdez-Lugo"The Mineral Industries of the Gambia, Guinea-Bissau, and Senegal" ''2005 Minerals Yearbook''. U.S. Geological Survey (August 2007). ''This article incorporates text from this U.S. government source, which is in the public domain.'' Legal framework The Department of State for Trade, Industry, and Employment is the government entity responsible for the administration of the mining sector. A new mineral and mining law proposed in 2001 was still under consideration for approval by the Government as of 2005. The government has put in place policies to attract foreign direct investment, including free repatriation of capital and profits, special Investment certificates, and constitutional guarantees and safeguards against nationalization and expropriation of investments. Mining As of 200 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rutile
Rutile is an oxide mineral composed of titanium dioxide (TiO2), the most common natural form of TiO2. Rarer Polymorphism (materials science), polymorphs of TiO2 are known, including anatase, akaogiite, and brookite. Rutile has one of the highest refractive index, refractive indices at visible wavelengths of any known crystal and also exhibits a particularly large birefringence and high dispersion (optics), dispersion. Owing to these properties, it is useful for the manufacture of certain optical elements, especially Polarization (waves), polarization optics, for longer light, visible and infrared, infrared wavelengths up to about 4.5 micrometres. Natural rutile may contain up to 10% iron and significant amounts of niobium and tantalum. Rutile derives its name from the Latin ('red'), in reference to the deep red color observed in some specimens when viewed by transmitted light. Rutile was first described in 1803 by Abraham Gottlob Werner. Occurrence Rutile is a common accessory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ilmenite
Ilmenite is a titanium-iron oxide mineral with the idealized formula . It is a weakly magnetic black or steel-gray solid. Ilmenite is the most important ore of titanium and the main source of titanium dioxide, which is used in paints, printing inks, fabrics, plastics, paper, sunscreen, food and cosmetics. Structure and properties Ilmenite is a heavy (specific gravity 4.7), moderately hard (Mohs hardness 5.6 to 6), opaque black mineral with a submetallic luster. It is almost always massive, with thick tabular crystals being quite rare. It shows no discernible cleavage, breaking instead with a conchoidal to uneven fracture. Ilmenite crystallizes in the trigonal system with space group ''R''. The ilmenite crystal structure consists of an ordered derivative of the corundum structure; in corundum all cations are identical but in ilmenite Fe2+ and Ti4+ ions occupy alternating layers perpendicular to the trigonal c axis. Pure ilmenite is paramagnetic (showing only very weak attrac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Mineral
In geology, a heavy mineral is a mineral with a density that is greater than 2.9 g/cm3, most commonly referring to dense components of siliciclastic sediments. A heavy mineral suite is the relative percentages of heavy minerals in a stone. Heavy mineral suites are used to help determine the provenance and history of sedimentary rocks. As heavy minerals are a minor constituent of most sedimentary rock, they must be separated out to be studied. Heavy mineral separation generally uses a dense liquid in either a separatory funnel or centrifuge. Liquids used include bromoform, tetrabromoethane, tribromoethane, methylene iodide Diiodomethane or methylene iodide, commonly abbreviated "MI", is an organoiodine compound. Diiodomethane is a colorless liquid; however, it decomposes upon exposure to light liberating iodine, which colours samples brownish. It is slightly solubl ..., and polytungstate liquids. References Petrology Sedimentology {{petrology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metric Tons
The tonne ( or ; symbol: t) is a unit of mass equal to 1000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton to distinguish it from the non-metric units of the short ton ( United States customary units), and the long ton ( British imperial units). It is equivalent to approximately 2204.6 pounds, 1.102 short tons, and 0.984 long tons. The official SI unit is the megagram (symbol: Mg), a less common way to express the same mass. Symbol and abbreviations The BIPM symbol for the tonne is t, adopted at the same time as the unit in 1879.Table 6 . BIPM. Retrieved on 2011-07-10. Its use is also official for the metric ton in the United States, having been adopted by the United States |
Environmental Impact Assessment
Environmental Impact assessment (EIA) is the assessment of the environmental consequences of a plan, policy, program, or actual projects prior to the decision to move forward with the proposed action. In this context, the term "environmental impact assessment" is usually used when applied to actual projects by individuals or companies and the term " strategic environmental assessment" (SEA) applies to policies, plans and programmes most often proposed by organs of state. It is a tool of environmental management forming a part of project approval and decision-making. Environmental assessments may be governed by rules of administrative procedure regarding public participation and documentation of decision making, and may be subject to judicial review. The purpose of the assessment is to ensure that decision makers consider the environmental impacts when deciding whether or not to proceed with a project. The International Association for Impact Assessment (IAIA) defines an enviro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dredge
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value. In all but a few situations the excavation is undertaken by a specialist floating plant, known as a dredger. Dredging is carried out in many different locations and for many different purposes, but the main objectives are usually to recover material of value or use, or to create a greater depth of water. Dredges have been classified as suction or mechanical. Dredging has significant environmental impacts: it can disturb marine sediments, leading to both short- and long-term water pollution, destroy important seabed ecosystems, and can release human-sourced toxins captured in the sediment. Description ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brufut
{{Infobox settlement , official_name =Brufut, The Gambia, West Africa. , other_name = , native_name = , nickname = , settlement_type = , motto = , image_skyline = , imagesize = 300px , image_caption = , image_flag = , flag_size = , image_seal = , seal_size = , image_shield = , shield_size = , image_blank_emblem = , blank_emblem_type = , blank_emblem_size = , image_map = , mapsize = , map_caption = , image_map1 = , mapsize1 = , map_caption1 = , image_dot_map = , dot_mapsize = , dot_map_caption = , dot_x = , dot_y = , pushpin_map = Gambia , pushpin_label_position =bottom , pushpin_map_caption =Location in the Gambia , subdivision_type = Country , subdivision_name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mineral Sands
Heavy mineral sands are a class of ore deposit which is an important source of zirconium, titanium, thorium, tungsten, rare-earth elements, the industrial minerals diamond, sapphire, garnet, and occasionally precious metals or gemstones. Heavy mineral sands are placer deposits formed most usually in beach environments by concentration due to the specific gravity of the mineral grains. It is equally likely that some concentrations of heavy minerals (aside from the usual gold placers) exist within streambeds, but most are of a low grade and are relatively small. Grade and tonnage distribution The grade of a typical heavy mineral sand ore deposit is usually low. Within the 21st century, the lowest cut-off grades of heavy minerals, as a total heavy mineral (THM) concentrate from the bulk sand, in most ore deposits of this type is around 1% heavy minerals, although several are higher grade. Of this total heavy mineral concentrate (THM), the components are typically * Zircon, fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kartung
Kartung or Kartong is a coastal village in south-western Gambia on the border with Senegal. It is located approximately 60 kilometres from Banjul and 9.5 kilometres from Gunjur. It is located in Kombo South District in the Western Division. As of 2009, it has an estimated population of 5213. The village stands on the bank of the Hallahin Bolong River and is accessed by canoes. Kartung is a multi-ethnic and religious village, but the most dominant religion is Islam that gave rise to the sacred place Folonko. Climate Kartong has a tropical savanna climate Tropical savanna climate or tropical wet and dry climate is a tropical climate sub-type that corresponds to the Köppen climate classification categories ''Aw'' (for a dry winter) and ''As'' (for a dry summer). The driest month has less than of p ... (Aw) with no rainfall from November to May and heavy to very heavy rainfall from June to October. References Populated coastal places in the Gambia The Gambia–Senegal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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