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Mutorashanga
300px, Entrance of an adit of a chromite mine, Mutorashanga">chromite.html" ;"title="adit of a chromite">adit of a chromite mine, Mutorashanga Mutorashanga is a small ferrochrome mining town in Mashonaland West province in Zimbabwe. Situated on Zimbabwe's Great Dyke mountain range, about 100 kilometers north of the capital, Harare.http://www.mbendi.com/indy/ming/chrm/af/zi/p0005.htm The mines at Mutorashanga are largely owned by Zimasco, a chrome mining company owned in turn by Sinosteel Corporation, although some are operated by contractors. The area is well known for its abundant aloes, now threatened by mining, and other endemic flora. Aloe Ortholopha is endemic to the section of the Great Dyke mountain range in the Mutorashanga area. Zimasco operates ferrochrome mines in Shurugwi and Lalapanzi in Zimbabwe's Midlands Province. It also operates Zimbabwe's largest ferrochrome smelter in the Midlands town of Kwekwe. Muriel Gold Mine, south of Mutorashanga, also forms part of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mutorashanga
300px, Entrance of an adit of a chromite mine, Mutorashanga">chromite.html" ;"title="adit of a chromite">adit of a chromite mine, Mutorashanga Mutorashanga is a small ferrochrome mining town in Mashonaland West province in Zimbabwe. Situated on Zimbabwe's Great Dyke mountain range, about 100 kilometers north of the capital, Harare.http://www.mbendi.com/indy/ming/chrm/af/zi/p0005.htm The mines at Mutorashanga are largely owned by Zimasco, a chrome mining company owned in turn by Sinosteel Corporation, although some are operated by contractors. The area is well known for its abundant aloes, now threatened by mining, and other endemic flora. Aloe Ortholopha is endemic to the section of the Great Dyke mountain range in the Mutorashanga area. Zimasco operates ferrochrome mines in Shurugwi and Lalapanzi in Zimbabwe's Midlands Province. It also operates Zimbabwe's largest ferrochrome smelter in the Midlands town of Kwekwe. Muriel Gold Mine, south of Mutorashanga, also forms part of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Dyke
The Great Dyke is a linear geological feature that trends nearly north-south through the centre of Zimbabwe passing just to the west of the capital, Harare. It consists of a band of short, narrow ridges and hills spanning for approximately . The hills become taller as the range goes north, and reach up to above the Mvurwi Range. The range is host to vast ore deposits, including gold, silver, chromium, platinum, nickel and asbestos. Geology and Soils Geologically the Great Dyke is not a dyke, but is lopolithic and Y-shaped in cross-section. It is a group of layered ultramafic intrusions that extend across Zimbabwe with a strike of about N20°E. The width of the intrusions vary from 3 to . The Great Dyke is unusual in that most ultramafic layered intrusions display near horizontal sill or sheet forms. The well-layered lower units of ultramafic rocks comprising the Great Dyke are locally overlain by erosional remnants of gabbroic rock. These mark the centres of the four s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lomagundi District
Lomagundi is a former district of Zimbabwe, originally an alternative form of the name ''Nemakonde'', who was a chief of the Shona in the area. The eastern border of Lomagundi was the Great Dyke The Great Dyke is a linear geological feature that trends nearly north-south through the centre of Zimbabwe passing just to the west of the capital, Harare. It consists of a band of short, narrow ridges and hills spanning for approximately . The .... Notes and references Districts of Zimbabwe {{Zimbabwe-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Union Carbide
Union Carbide Corporation is an American chemical corporation wholly owned subsidiary (since February 6, 2001) by Dow Chemical Company. Union Carbide produces chemicals and polymers that undergo one or more further conversions by customers before reaching consumers. Some are high-volume commodities and others are specialty products meeting the needs of smaller markets. Markets served include paints and coatings, packaging, wire and cable, household products, personal care, pharmaceuticals, automotive, textiles, agriculture, and oil and gas. The company is a former component of the Dow Jones Industrial Average. Founded in 1917 as the Union Carbide and Carbon Corporation, from a merger with National Carbon Company, the company's researchers developed an economical way to make ethylene from natural gas liquids, such as ethane and propane, giving birth to the modern petrochemical industry. The company divested consumer products businesses Eveready and Energizer batteries, Glad bags ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phoenix (plant)
''Phoenix'' is a genus of 14 species of Arecaceae, palms, native plant, native to an area starting from the Canary Islands in the west, across northern and central Africa, to the extreme southeast of Europe (Crete), and continuing throughout southern Asia from Turkey east to southern China and Malaysia. The diverse habitats they occupy include swamps, deserts, and mangrove sea coasts. Most ''Phoenix'' species originate in Semi-arid climate, semi-arid regions, but usually occur near high groundwater levels, rivers, or Spring (hydrosphere), springs. The genus is unusual among members of subfamily Coryphoideae in having pinnate, rather than palmate leaves; tribe Caryoteae also have pinnate or bipinnate leaves.Riffle, Robert L. & Craft, Paul (2003) ''An Encyclopedia of Cultivated Palms''. Portland: Timber Press. / The palms were more numerous and widespread in the past than they are at present. Some ''Phoenix'' palms have become naturalised in other parts of the world; in particular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syzygium
''Syzygium'' () is a genus of flowering plants that belongs to the myrtle family, Myrtaceae. The genus comprises about 1200 species, and has a native range that extends from Africa and Madagascar through southern Asia east through the Pacific. Its highest levels of diversity occur from Malaysia to northeastern Australia, where many species are very poorly known and many more have not been described taxonomically. Most species are evergreen trees and shrubs. Several species are grown as ornamental plants for their attractive glossy foliage, and a few produce edible fruits that are eaten fresh or used in jams and jellies. The most economically important species, however, is the clove ''Syzygium aromaticum'', of which the unopened flower buds are an important spice. Some of the edible species of ''Syzygium'' are planted throughout the tropics worldwide, and several have become invasive species in some island ecosystems. Several species of ''Syzygium'' bear fruits that are edible for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triathlon
A triathlon is an endurance multisport race consisting of Swimming (sport), swimming, Cycle sport, cycling, and running over various distances. Triathletes compete for fastest overall completion time, racing each segment sequentially with the time transitioning between the disciplines included. The word is of Greek language, Greek origin, from τρεῖς or ''treis'' (three) and ἆθλος or ''athlos'' (competition). The sport originated in the late 1970s in Southern California as sports clubs and individuals developed the sport. This history has meant that #Nonstandard variations, variations of the sport were created and still exist. It also led to other three-stage races using the name triathlon despite not being continuous or not consisting of swim, bike, and run elements. Triathletes train to achieve endurance, strength and speed. The sport requires focused persistent and Sports periodization, periodised training for each of the three disciplines, as well as combination ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asbestos
Asbestos () is a naturally occurring fibrous silicate mineral. There are six types, all of which are composed of long and thin fibrous crystals, each fibre being composed of many microscopic "fibrils" that can be released into the atmosphere by abrasion and other processes. Inhalation of asbestos fibres can lead to various dangerous lung conditions, including mesothelioma, asbestosis, and lung cancer, so it is now notorious as a serious health and safety hazard. Archaeological studies have found evidence of asbestos being used as far back as the Stone Age to strengthen ceramic pots, but large-scale mining began at the end of the 19th century when manufacturers and builders began using asbestos for its desirable physical properties. Asbestos is an excellent electrical insulator and is highly fire-resistant, so for much of the 20th century it was very commonly used across the world as a building material, until its adverse effects on human health were more widely acknowledged ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geographic Coordinate System
The geographic coordinate system (GCS) is a spherical or ellipsoidal coordinate system for measuring and communicating positions directly on the Earth as latitude and longitude. It is the simplest, oldest and most widely used of the various spatial reference systems that are in use, and forms the basis for most others. Although latitude and longitude form a coordinate tuple like a cartesian coordinate system, the geographic coordinate system is not cartesian because the measurements are angles and are not on a planar surface. A full GCS specification, such as those listed in the EPSG and ISO 19111 standards, also includes a choice of geodetic datum (including an Earth ellipsoid), as different datums will yield different latitude and longitude values for the same location. History The invention of a geographic coordinate system is generally credited to Eratosthenes of Cyrene, who composed his now-lost ''Geography'' at the Library of Alexandria in the 3rd century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mashonaland Central Province
Mashonaland Central is a province of Zimbabwe. It has an area of 28,347 km² and a population of 1,152,520 (2012 census), representing about 8.5% of the total Zimbabwe population. Geography Background Bindura is the capital of the province. During the 2002/2003 rainy season, the area experienced heavy flooding, along with several other Zimbabwean provinces. Mashonaland Central districts The province is divided into eight districts: * Bindura * Mbire * Guruve * Mount Darwin * Rushinga * Shamva * Mazowe * Muzarabani See also * Provinces of Zimbabwe * Districts of Zimbabwe The Republic of Zimbabwe is broken down into 10 administrative provinces, which are divided into 59 districts and 1,200 wards. Bulawayo Province * Bulawayo Harare Province * Harare Manicaland Province * Buhera * Chi ... References Provinces of Zimbabwe {{Zimbabwe-gov-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mashonaland West Province
Mashonaland West is a province of Zimbabwe. It has an area of 57,441 km² and a population of approximately 1.5 million (2012). Chinhoyi is the capital of the province. Districts Mashonaland West is divided into 7 districts: * Chegutu * Hurungwe * Kariba * Makonde * Mhondoro-Ngezi * Sanyati * Zvimba Geography See also *Provinces of Zimbabwe *Districts of Zimbabwe The Republic of Zimbabwe is broken down into 10 administrative provinces, which are divided into 59 districts and 1,200 wards. Bulawayo Province * Bulawayo Harare Province * Harare Manicaland Province * Buhera * Chi ... References {{Zimbabwe-gov-stub Provinces of Zimbabwe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smelter
Smelting is a process of applying heat to ore, to extract a base metal. It is a form of extractive metallurgy. It is used to extract many metals from their ores, including Silver mining#Ore processing, silver, iron-making, iron, copper extraction, copper, and other base metals. Smelting uses heat and a chemical reducing agent to decompose the ore, driving off other elements as gases or slag and leaving the metal base behind. The reducing agent is commonly a fossil fuel source of carbon, such as coke (fuel), coke—or, in earlier times, charcoal. The oxygen in the ore binds to carbon at high temperatures due to the Chemical energy, lower potential energy of the bonds in carbon dioxide (). Smelting most prominently takes place in a blast furnace to produce pig iron, which is converted into steel. The carbon source acts as a chemical reactant to remove oxygen from the ore, yielding the purified metal Chemical element, element as a product. The carbon source is oxidized in two stage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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