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ores | A Wisdom Archive on ores | | ores A selection of articles related to ores | |
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ores, Ore, Ore - Important ore minerals, Mineral resource classification, Economic geology
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| ARTICLES RELATED TO ores | | | |  ores: Encyclopedia II - Pyrenees - GeographyThe Pyrenees are part of the following French départements, from east to west: Pyrénées-Orientales, Aude, Ariège, Haute-Garonne, Hautes-Pyrénées, and Pyrénées-Atlantiques.
The Pyrenees are also part of the following Spanish provinces, from east to west: Girona, Barcelona, Lleida, Huesca, Zaragoza, Navarre, and Guipúzcoa.
Finally, the Pyrenees are also part of the independent principality of Andorra.
The Pyrenees are typically divided into three sections: the Central, the ...
See also:Pyrenees, Pyrenees - Geography, Pyrenees - Geology, Pyrenees - Landscape, Pyrenees - Natural resources, Pyrenees - Climate, Pyrenees - Flora and fauna, Pyrenees - Demographics, Pyrenees - Sports, Pyrenees - Ski resorts include, Pyrenees - Summits, Pyrenees - Highest summits, Pyrenees - The others above 3000 m, Pyrenees - Other famous summits below 3000 m, Pyrenees - External link and references Read more here: » Pyrenees: Encyclopedia II - Pyrenees - Geography |
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| | | | | | ores: Encyclopedia II - Radium - Notable characteristics The heaviest of the alkaline earth metals, radium is intensely radioactive and resembles Barium chemically. This metal is found (combined) in minute quantities in the uranium ore pitchblende, and various other uranium minerals. Radium preparations are remarkable for maintaining themselves at a higher temperature than their surroundings, and for their radiations, which are of three kinds: alpha rays, beta rays, and gamma rays. Radium ...
See also:Radium, Radium - Notable characteristics, Radium - Applications, Radium - History, Radium - Occurrence, Radium - Compounds, Radium - Isotopes, Radium - Radioactivity, Radium - Precautions Read more here: » Radium: Encyclopedia II - Radium - Notable characteristics |
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| | | | | | ores: Encyclopedia II - Molybdenum - Biological role Molybdenum has been found to have a role in the biology of all classes of organisms. It is found in two groups of enzymes, the nitrogenases and the molybdopterins.
The nitrogenases are found in bacteria, and are involved in the pathways of nitrogen fixation. The bacteria may be found inside plants. The molybdenum atom is present in a cluster(see cluster chemistry), which includes iron and sulfur atoms. The name molybdopterin is misleading as the group of enzymes includes tungsten-containing enzymes, and the word "molybdopterin" does n ...
See also:Molybdenum, Molybdenum - Notable characteristics, Molybdenum - Applications, Molybdenum - History, Molybdenum - Occurrence, Molybdenum - Biological role, Molybdenum - Isotopes, Molybdenum - Precautions, Molybdenum - Toxicity in animals Read more here: » Molybdenum: Encyclopedia II - Molybdenum - Biological role |
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| | | | | | ores: Encyclopedia II - Iron - History The first signs of use of iron come from the Sumerians and the Egyptians, where around 4000 BC, a few items, such as the tips of spears, daggers and ornaments, were being fashioned from iron recovered from meteorites. Because meteorites fall from the sky some linguists have conjectured that the English word iron (OE īsern), which has cognates in many northern and western European languages, derives from the Etruscan a ...
See also:Iron, Iron - Notable characteristics, Iron - Applications, Iron - History, Iron - Occurrence, Iron - Extraction from ore, Iron - Compounds, Iron - Biological role, Iron - Isotopes, Iron - Precautions Read more here: » Iron: Encyclopedia II - Iron - History |
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| | | | | ores: Encyclopedia II - Open-pit mining - Extraction Open Cut mines are dug on benches, which describe horizontal levels of the mine. These benches are usually on 3 metre or 6 metre levels, depending on the size of the machinery being used. Quarries rarely use benches, as the majority of quarries are dug using (relatively) small-scale machinery.
The walls of the pit are generally dug on an angle less than vertical, to prevent and minimise damage and danger from rock falls. This depends on how weathered the rocks are, and the type of rock, and also how many structural weaknesses occur within the rocks, ...
See also:Open-pit mining, Open-pit mining - Extraction, Open-pit mining - Rehabilitation, Open-pit mining - Typical Open Cut Grades, Open-pit mining - Open-pit mines Read more here: » Open-pit mining: Encyclopedia II - Open-pit mining - Extraction |
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| | | | | ores: Encyclopedia II - Anorthosite - Proterozoic anorthosite
Anorthosite - Age.
Although a few anorthosite bodies were emplaced either late in the Archean Eon, or early in the Phanerozoic Eon, the vast majority of Proterozoic anorthosites were emplaced, as their name suggests, during the Proterozoic Eon (ca. 2500-542 Ma).
Anorthosite - Mode of occurrence.
Anorthosite plutons occur in a wide range of sizes. Some smaller plutons, exemplified by many anorthosite bodies in the U.S., cover only a few dozen square kilometres. Larger plutons, like the Mt. Lister Anorthosite, in northern Labrador ...
See also:Anorthosite, Anorthosite - Proterozoic anorthosite, Anorthosite - Age, Anorthosite - Mode of occurrence, Anorthosite - Physical characteristics, Anorthosite - Chemical and isotopic characteristics, Anorthosite - Origins of Proterozoic anorthosites, Anorthosite - High-alumina orthopyroxene megacrysts, Anorthosite - Archean anorthosite, Anorthosite - Economic value of anorthosite Read more here: » Anorthosite: Encyclopedia II - Anorthosite - Proterozoic anorthosite |
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| | | | | ores: Encyclopedia II - Uranium - History The use of uranium, in its natural oxide form, dates back to at least AD 79, when it was used to add a yellow colour to ceramic glazes (yellow glass with 1% uranium oxide was found near Naples, Italy).
The discovery of the element is credited to the German chemist Martin Heinrich Klaproth who in 1789 found uranium as part of the mineral called pitchblende. It was named after the planet Uranus, which had been discovered eight years earlier by William Herschel. It was first isolated as a metal in 1841 by Eugene-Melchior Peligot. In 1850 ...
See also:Uranium, Uranium - Notable characteristics, Uranium - Applications, Uranium - History, Uranium - Military applications, Uranium - Uranium exploration and mining, Uranium - Rise stagnation and possible renaissance of uranium mining, Uranium - Risks of uranium mining, Uranium - Codenames tuballoy and oralloy, Uranium - Compounds, Uranium - Occurrence, Uranium - Production and distribution, Uranium - Isotopes, Uranium - Precautions Read more here: » Uranium: Encyclopedia II - Uranium - History |
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| | | | | | ores: Encyclopedia II - Bashkortostan - Geography Bashkortostan contains part of the southern Urals and the adjacent plains.
Area: 143,600 km².
Borders: Bashkortostan borders Perm Krai (N), Sverdlovsk Oblast (NE), Chelyabinsk Oblast (NE/E/SE), Orenburg Oblast (SE/S/SW), Tatarstan (W), and Udmurtia (NW).
Highest point: Mount Yamantaw (1,638 m).
Maximum N->S distance: 550 km.
Maximum E->W distance: over 430 km.
Average elevation: no data.
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See also:Bashkortostan, Bashkortostan - Terminology, Bashkortostan - Geography, Bashkortostan - Time zone, Bashkortostan - Rivers, Bashkortostan - Lakes, Bashkortostan - Mountains, Bashkortostan - Natural resources, Bashkortostan - Climate, Bashkortostan - Administrative divisions, Bashkortostan - Demographics, Bashkortostan - Population development, Bashkortostan - History, Bashkortostan - Politics, Bashkortostan - Economy, Bashkortostan - Education, Bashkortostan - Culture, Bashkortostan - Tourism Read more here: » Bashkortostan: Encyclopedia II - Bashkortostan - Geography |
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| | | | | ores: Encyclopedia II - Poverty in Africa - Misused Money It is estimated that over $500 billion (U.S.) has been given to African nations in the form of direct aid. The consensus is that the money has had little long term effect. A good portion of that money was not given directly to residents of the continent, but to governments, government officials, contractors employed by the donor countries, and others who generally de-patriated the funds back to Europe or the Americas. The sum is large, of the same order of magnitude as ...
See also:Poverty in Africa, Poverty in Africa - Scope, Poverty in Africa - Overpopulation, Poverty in Africa - Mismanagement of land, Poverty in Africa - Loss of traditional land uses, Poverty in Africa - Misused Money, Poverty in Africa - Capital Flight, Poverty in Africa - Human Resources, Poverty in Africa - Disease, Poverty in Africa - Lack of Infrastructure, Poverty in Africa - Conflict, Poverty in Africa - External link Read more here: » Poverty in Africa: Encyclopedia II - Poverty in Africa - Misused Money |
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| | | | | ores: Encyclopedia II - Newmont Mining Corporation - History
Newmont Mining Corporation - Early years.
Newmont Mining Corporation was founded in 1921 in New York by Colonel William Boyce Thompson as a holding company to invest in worldwide mineral, oil, and relations companies. The name Newmont was chosen by Thompson as a contraction of New York, and Montana, because, as one biographer put it, "he grew up in the latter and made his money in the former."
In 1929, Newmont became a mining company with its first gold production by acquiring California's Empire Star Mine ...
See also:Newmont Mining Corporation, Newmont Mining Corporation - History, Newmont Mining Corporation - Early years, Newmont Mining Corporation - Gold at Carlin, Newmont Mining Corporation - Major restructuring, Newmont Mining Corporation - Controversies, Newmont Mining Corporation - Yanacocha mine, Newmont Mining Corporation - Pollution at Buyat Bay Read more here: » Newmont Mining Corporation: Encyclopedia II - Newmont Mining Corporation - History |
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| | | | | ores: Encyclopedia II - Newmont Mining Corporation - History
Newmont Mining Corporation - Early years.
Newmont Mining Corporation was founded in 1921 in New York by Colonel William Boyce Thompson as a holding company to invest in worldwide mineral, oil, and relations companies. The name Newmont was chosen by Thompson as a contraction of New York, and Montana, because, as one biographer put it, "he grew up in the latter and made his money in the former."
In 1929, Newmont became a mining company with its first gold production by acquiring California's Empire Star Mine ...
See also:Newmont Mining Corporation, Newmont Mining Corporation - History, Newmont Mining Corporation - Early years, Newmont Mining Corporation - Gold at Carlin, Newmont Mining Corporation - Major restructuring, Newmont Mining Corporation - Indonesian environmental controversy Read more here: » Newmont Mining Corporation: Encyclopedia II - Newmont Mining Corporation - History |
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| | | | | ores: Encyclopedia II - Reflection seismology - Outline of the method Seismic waves are a form of elastic wave that travel in the Earth. Any medium that can support wave propagation may be described as having an impedance. The seismic (or acoustic) impedance Z is defined by the equation
Z = Vρ,
where V is the seismic wave velocity and ρ (Greek rho) is the density of the rock. When a seismic wave encounters a boundary between two different materia ...
See also:Reflection seismology, Reflection seismology - Applications, Reflection seismology - Hydrocarbon exploration, Reflection seismology - Crustal studies, Reflection seismology - Outline of the method, Reflection seismology - Reflection experiments, Reflection seismology - Interpretation of reflections, Reflection seismology - Reflection and transmission, Reflection seismology - Environmental impact, Reflection seismology - History Read more here: » Reflection seismology: Encyclopedia II - Reflection seismology - Outline of the method |
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| | | | | | | ores: Encyclopedia II - Tributyl phosphate - Use
Tributyl phosphate - Industrial.
TBP is a solvent and plasticizer for cellulose esters (eg. nitrocellulose and cellulose acetate). It forms stable hydrophobic complexes with some metals; these complex are soluble in organic solvents and in supercritical CO2. It is used for solvent extraction of rare earth metals from their ores, and of components of spent nuclear fuel (see Nuclear Chemistry section).
TBP finds its use as a solvent in inks, synthetic resins, gums, adhesives (namely for veneer plywood) ...
See also:Tributyl phosphate, Tributyl phosphate - History, Tributyl phosphate - Production, Tributyl phosphate - Use, Tributyl phosphate - Industrial, Tributyl phosphate - Nuclear Chemistry, Tributyl phosphate - Hazards, Tributyl phosphate - Sources Read more here: » Tributyl phosphate: Encyclopedia II - Tributyl phosphate - Use |
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| | | | | ores: Encyclopedia II - Mission San Juan Capistrano - Mission history
Mission San Juan Capistrano - The Spanish Mission Era 1776 – 1820.
The Mission site was chosen as a logical halfway point between San Gabriel and San Diego, situated within the First Military District. Actually, the Mission was founded twice; the site was originally consecrated by Father Fermín Francisco de Lasuén and Father Gregório Amúrrio on October 30, 1775 near an Indian settlement named Sajivit. Eight days later, Mission San Diego de Alcalá came under Indian attack. Since it was ...
See also:Mission San Juan Capistrano, Mission San Juan Capistrano - Mission history, Mission San Juan Capistrano - The Spanish Mission Era 1776 – 1820, Mission San Juan Capistrano - The Mexican Rancho Era 1821 – 1847, Mission San Juan Capistrano - California Statehood 1850 – 1900, Mission San Juan Capistrano - The 20th Century and beyond 1901 – present, Mission San Juan Capistrano - Mission industries, Mission San Juan Capistrano - The Mission bells, Mission San Juan Capistrano - The return of the swallows, Mission San Juan Capistrano - Historic designations Read more here: » Mission San Juan Capistrano: Encyclopedia II - Mission San Juan Capistrano - Mission history |
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