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Ore Encyclopedia

Ore deposits are relatively rare and tend to be distributed in an irregular fashion around the globe, but there is nothing unusual about the manner in which they form. They develop, in fact, from the same geologic processes that form ordinary igneous, sedimentary, and metamorphic rocks. Igneous ore deposits

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Ore Deposit Article about Ore Deposit by The Free Dictionary

ore deposit[′ȯr di‚päz·ət] (geology) Rocks containing minerals of economic value in such amount that they can be profitably exploited. Ore Deposit an accumulation of an ore body or ore bodies on or below the surface of the earth that, because of size, quality, and mode of occurrence, is suitable for industrial exploitation. Ore deposits consist

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Ore mining Encyclopedia Britannica

Ore, a natural aggregation of one or more minerals that can be mined, processed, and sold at a profit. An older definition restricted usage of the word ore to metallic mineral deposits, but the term has expanded in some instances to include nonmetallics. Although more than 2,800 mineral species

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Category:Ore deposits Wikipedia

Pages in category "Ore deposits" The following 37 pages are in this category, out of 37 total. This list may not reflect recent changes ().

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Hydrothermal mineral deposit Wikipedia

Hydrothermal mineral deposits are accumulations of valuable minerals which formed from hot waters circulating in Earth's crust through fractures. They eventually create rich-metallic fluids concentrated in a selected volume of rock, which become supersaturated and then precipitate ore minerals.In some occurrences, minerals can be extracted at a profit by mining.

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Iron mining in the United States Wikipedia

Iron mining in the United States produced 42.5 million metric tons of iron ore in 2015, worth US$3.8 billion. Iron ore was the third-highest-value metal mined in the United States, after gold and copper. Iron ore was mined from nine active mines and three reclamation operations in Michigan, Minnesota, and Utah.Most of the iron ore was mined in northern Minnesota's Mesabi Range.

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ore National Geographic Society

Ore is a deposit in Earth’s crust of one or more valuable minerals. The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron. Copper ore is mined for a variety of industrial uses. Copper, an excellent conductor of electricity, is used as electrical wire. Copper is also used in construction.

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Ore deposit geology Encyclopedia Britannica

An ore deposit, in its simplest terms, is a portion of the Earth’s crust from which some industrial raw material can be extracted at a profit. As such, its characteristics are as much economic as geochemical.

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Hypogene Wikipedia

In ore deposit geology, hypogene processes occur deep below the earth's surface, and tend to form deposits of primary minerals, as opposed to supergene processes that occur at or near the surface, and tend to form secondary minerals. At great depth the pressure is high, and water can remain liquid at temperatures well above 100 °C.

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Vein ore deposit Encyclopedia Britannica

Vein, in geology, ore body that is disseminated within definite boundaries in unwanted rock or minerals (gangue). The term, as used by geologists, is nearly synonymous with the term lode, as used by miners. There are two distinct types: fissure veins and ladder veins. Fissure veins, the earliest

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Ore and mineral deposits Article about Ore and mineral

ore, metal-bearing mineral mass that can be profitably mined. Nearly all rock deposits contain some metallic minerals, but in many cases the concentration of metal is too low to justify mining mining, extraction of solid mineral resources from the earth.

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Ore and mineral deposits financial definition of Ore and

Definition of Ore and mineral deposits in the Financial Dictionary by Free online English dictionary and encyclopedia. What is Ore and mineral deposits? Meaning of Ore and mineral deposits as a finance term. What does Ore and mineral deposits mean in finance?

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Mining Encyclopedia Britannica

Mining, process of extracting useful minerals from the surface of the Earth, including the seas.A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure. (One organic substance, coal, is often discussed as a mineral as well.) Ore is a metalliferous mineral, or an aggregate

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Mining Underground mining Encyclopedia Britannica

Mining Mining Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered. Counting against underground mining are the costs, which, for each ton of material mined, are much higher underground than on the

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Ore deposit financial definition of Ore deposit

Beowulf Mining PLC (LSE: BEM), a copper, gold and iron mining company, has announced that initial assay results for the first 10 drill holes on its Kallak South iron ore deposit in Sweden have confirmed the presence of high grade iron ore.

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Alluvial ore deposit Article about alluvial ore deposit

Find out information about alluvial ore deposit. A deposit in which the valuable mineral particles have been transported and left by a stream Explanation of alluvial ore deposit. Alluvial ore deposit Article about alluvial ore deposit by The Free Dictionary. Encyclopedia browser?

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ORE MINERALOGY EOLSS

©Encyclopedia of Life Support Systems (EOLSS) ORE MINERALOGY Oskar A. Thalhammer University of Leoben, Austria Aberra Mogessie University of Graz, Austria Keywords: ore minerals, ore deposits, elements, sulfides, oxides, epigenetic, Introduction to Ore Mineralogy An ore is a naturally occurring rock or material composed of a mineral or

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Copper Industry Encyclopedia

Because individual ore deposits are finite, continued spending on exploration and mine development is required merely to maintain output, let alone satisfy rising demand. Improved exploration techniques have partly offset the tendency for the average grade of copper ore to fall with the depletion of the richer and most accessible ore deposits.

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Mining Encyclopedia

Mining Modern mining is an industry that involves the exploration for and removal of minerals from the earth, economically and with minimum damage to the environment. Mining is important because minerals are major sources of energy [1] as well as materials such as fertilizers and steel.

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NIGGLI, PAUL Encyclopedia

His booklet Versuck einer natürlichen Klassifikation der im weiteren Sinne magmatischen Lagerstätten (1925) is a classic synopsis of magmatic ore deposits. In this work Niggli devoted less space to experimental problems and to direct observations of ore deposits, being more concerned to classify synopses of the published results and observations.

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Lithium Ores Article about Lithium Ores by The Free

All lithium ore deposits are complex in character. In addition to lithium, spodumene and petalite ores also contain beryllium, tantalum, cesium, rubidium, and tin. Feldspar, which invariably occurs in ores, may be used as a raw material in the production of ceramics. Zinnwaldite lithium ores

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Translations of Encyclopedia about Geology Ore Deposits

Translations of Encyclopedia about Geology . Ore Deposits. Places containing a sufficient amount of minerals, which may be used to obtain metals, are called ore deposits, and minerals containing metals are called ore minerals. They are chemical compounds of metal elements combined with sulphur or oxygen. Ore in pure form is found very seldom

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Ore Deposits, Zoning of Article about Ore Deposits

Ore Deposits, Zoning of the regular spatial change in the chemical and mineral composition of ores, leading to the formation of ore zones with predominance of certain metals. A distinction is made between primary zoning, which is caused by the processes of formation of mineral deposits, secondary zoning, which arises in connection with the trans

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NIGGLI, PAUL Encyclopedia

His booklet Versuck einer natürlichen Klassifikation der im weiteren Sinne magmatischen Lagerstätten (1925) is a classic synopsis of magmatic ore deposits. In this work Niggli devoted less space to experimental problems and to direct observations of ore deposits, being more concerned to classify synopses of the published results and observations.

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Translations of Encyclopedia about Geology Ore Deposits

Translations of Encyclopedia about Geology . Ore Deposits. Places containing a sufficient amount of minerals, which may be used to obtain metals, are called ore deposits, and minerals containing metals are called ore minerals. They are chemical compounds of metal elements combined with sulphur or oxygen. Ore in pure form is found very seldom

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Lithium Ores Article about Lithium Ores by The Free

All lithium ore deposits are complex in character. In addition to lithium, spodumene and petalite ores also contain beryllium, tantalum, cesium, rubidium, and tin. Feldspar, which invariably occurs in ores, may be used as a raw material in the production of ceramics. Zinnwaldite lithium ores

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Ore Deposits, Zoning of Article about Ore Deposits

Ore Deposits, Zoning of the regular spatial change in the chemical and mineral composition of ores, leading to the formation of ore zones with predominance of certain metals. A distinction is made between primary zoning, which is caused by the processes of formation of mineral deposits, secondary zoning, which arises in connection with the trans

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Iron Ore The Canadian Encyclopedia

Nov 16, 2015· Iron Ore. Iron is a common metal found in the earth's crust, where it occurs in combination with other elements. The term "iron ore" is used when the rock is sufficiently rich in iron minerals to be mined economically.

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Mining links: Ore Wikipedia, the free encyclopedia

Ore Wikipedia, the free encyclopedia Ore Wikipedia, the free encyclopedia: An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock. will directly affect the costs associated with mining the ore.

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Banded Iron Formations Encyclopedia

Banded iron formations are of economic interest as they host the world's largest iron ore deposits and many gold deposits. Algoma-type banded iron formations were deposited as chemical sediments along with other sedimentary rocks (such as greywacke and shale) and volcanics in and adjacent to volcanic arcs and spreading centers. Iron and silica

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Ore deposit definition of Ore deposit by The Free Dictionary

Ore deposit synonyms, Ore deposit pronunciation, Ore deposit translation, English dictionary definition of Ore deposit. a mineral from which a metal can be extracted for profit Not to be confused with: oar a long pole used to row a boat o'er over n.

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Mining Facts for Kids

Mining techniques can be divided into two common excavation types: surface mining and sub-surface (underground) mining.Today, surface mining is much more common, and produces, for example, 85% of minerals (excluding petroleum and natural gas) in the United States, including 98% of metallic ores.

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Arthur Lakes Articles Colorado Encyclopedia

Arthur Lakes (1844–1917) was an English naturalist who discovered dinosaur bones near Morrison in 1877, setting off the “dinosaur bone rush” in Colorado and the American West. Additionally, his research on mineral deposits and extraction methods proved essential to the region’s mining industry.

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Libya Mining Encyclopedia of the Nations

The nonfuel sector of the Libyan mining industry was negligible. Petroleum was Libya's leading industry in 2002—Libya was the second-largest crude oil producer in Africa, after Nigeria—cement production ranked fifth, and the hydrocarbon sector accounted for 98% of foreign exchange revenues.

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Mining Tennessee Encyclopedia

Historically, Tennessee’s most important mining products have been iron, bituminous coal, copper, lead, zinc, and phosphate. Iron ore was the most significant during early settlement years. Interest in the iron ore of the Western Highland Rim dates back to the 1790s and even earlier in the eastern mountains.

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Volcanogenic massive sulfide ore deposit Gpedia, Your

Volcanogenic massive sulfide ore deposits, also known as VMS ore deposits, are a type of metal sulfide ore deposit, mainly copper-zinc which are associated with and created by volcanic-associated hydrothermal events in submarine environments.. These deposits are also sometimes called volcanic-hosted massive sulfide (VHMS) deposits. The density generally is 4500 kg/m 3.

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ore Infoplease

ore, metal-bearing mineral mass that can be profitably mined. Nearly all rock deposits contain some metallic minerals, but in many cases the concentration of metal is too low to justify mining the ore. Ores are usually found concentrated in deposits with a definite gradation of metal concentration from the ore to the surrounding rock.

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Mining Tennessee Encyclopedia

Historically, Tennessee’s most important mining products have been iron, bituminous coal, copper, lead, zinc, and phosphate. Iron ore was the most significant during early settlement years. Interest in the iron ore of the Western Highland Rim dates back to the 1790s and even earlier in the eastern mountains.

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Volcanogenic massive sulfide ore deposit Gpedia, Your

Volcanogenic massive sulfide ore deposits, also known as VMS ore deposits, are a type of metal sulfide ore deposit, mainly copper-zinc which are associated with and created by volcanic-associated hydrothermal events in submarine environments.. These deposits are also sometimes called volcanic-hosted massive sulfide (VHMS) deposits. The density generally is 4500 kg/m 3.

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ore Infoplease

ore, metal-bearing mineral mass that can be profitably mined. Nearly all rock deposits contain some metallic minerals, but in many cases the concentration of metal is too low to justify mining the ore. Ores are usually found concentrated in deposits with a definite gradation of metal concentration from the ore to the surrounding rock.

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Libya Mining Encyclopedia of the Nations

The nonfuel sector of the Libyan mining industry was negligible. Petroleum was Libya's leading industry in 2002—Libya was the second-largest crude oil producer in Africa, after Nigeria—cement production ranked fifth, and the hydrocarbon sector accounted for 98% of foreign exchange revenues.

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Mining The Canadian Encyclopedia

May 22, 2019· After the Second World War, declining ore grades and new technologies, including large earth-moving machines, spurred the development of “opencast” mining. These methods, also known as strip mining or open-pit mining, remove surface material, or overburden, to reveal extensive, low-grade deposits.

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Uranium_ore_deposits

The distribution of uranium ore deposits is widespread, with sizeable deposits and mines in Australia (40% of EDR), Canada, former Soviet republics, Africa and South America. Uranium ore deposits can be divided into several broad classes: Roll-front uranium deposits Palaeochannel hosted deposits Pegmatite-hosted deposits

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Ore and mineral deposits definition of Ore and mineral

Ore and mineral deposits synonyms, Ore and mineral deposits pronunciation, Ore and mineral deposits translation, English dictionary definition of Ore and mineral deposits. a mineral from which a metal can be extracted for profit Not to be confused with: oar a long pole used to row a boat o'er over n. Encyclopedia; Wikipedia

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Rare Ore Deposit Zelda Wiki

Rare Ore Deposits can be found all around Hyrule.They can be broken by hitting them with a Weapon or by blowing them up with a Remote Bomb.When they break, Gems can drop, as well as Flint and Rock Salt.Rare Gems drop from Rare Ore Deposits at a higher rate than they do with Ore Deposits

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Chromite mining The Oregon Encyclopedia

In 2012, the Oregon Resources Corporation ceased chromite mining operations due to the falling prices of chromite on international markets. In 2016 the ORC notified the Oregon Department of Geology and Mineral Industries that the chromite mining property and assets were for sale.

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Chapter 14 Nonrenewable Resources Flashcards Quizlet

Most minerals in seawater and on the deep ocean floor cost too much to extract, and there are squabbles over who owns them-rich hydrothermal deposits of gold, silver, zinc, and copper are found as sulfide deposits in the deep-ocean floor and around hydrothermal vents

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Lateritic nickel ore deposits Gpedia, Your Encyclopedia

Ore deposits. Typical nickel laterite ore deposits are very large tonnage, low-grade deposits located close to the surface. They are typically in the range of 20 million tonnes and upwards (this being a contained resource of 200,000 tonnes of nickel at 1%) with

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Heavy_mineral_sands_ore_deposits

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.

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Carbonate_hosted_lead_zinc_ore_deposits

Carbonate-hosted lead-zinc ore deposits are important and highly valuable concentrations of lead and zinc sulfide ores hosted within carbonate (limestone, marl, dolomite) formations and which share a common genetic origin.. These ore bodies range from 0.5 million tonnes of contained ore, to 20 million tonnes or more, and have a grade of between 4% combined lead and zinc to over 14% combined

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Carbonate-hosted lead-zinc ore deposits Gpedia, Your

Carbonate-hosted lead-zinc ore deposits are important and highly valuable concentrations of lead and zinc sulfide ores hosted within carbonate (limestone, marl, dolomite) formations and which share a common genetic origin.. These ore bodies range from 0.5 million tonnes of contained ore, to 20 million tonnes or more, and have a grade of between 4% combined lead and zinc to over 14% combined