kinds of metallic ore deposits
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kinds of metallic ore deposits

Metallic Deposits - CliffsNotes

Metallic ore deposits, however, are relatively rare concentrations of metal‐bearing minerals (usually sulfides) that contain enough metal to be profitably mined. Again, the profit line is dependent on a number of economic factors. Our most important metals are iron, copper, aluminum, lead, zinc, silver, gold, chromium, nickel, cobalt, manganese, molybdenum, tungsten, vanadium, tin, mercury, magnesium,

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20.1 Metal Deposits – Physical Geology

01/09/2015  There is a very wide variety of ore-forming processes, and there are hundreds of types of mineral deposits. The origins of a few of them are described below. Magmatic Nickel Deposits . A magmatic deposit is one in which the metal concentration takes place primarily at the same time as the formation and emplacement of the magma. Most of the nickel mined in Canada comes from magmatic

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Ore Deposit - an overview ScienceDirect Topics

Ore deposits that are associated with mafic to ultramafic igneous rocks can generally be divided into those where the metals of interest are hosted in oxide minerals and those where the metals of interest are held as sulfides or are strongly associated with sulfides (e.g., PGE alloys, arsenides, bismuthinides). The oxide ore bodies include stratiform, podiform, and breccia-related chromite, magnetite-rich layers

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20.1 Metal Deposits – Physical Geology

There is a very wide variety of ore-forming processes, and there are hundreds of types of mineral deposits. The origins of a few of them are described below. Magmatic Nickel Deposits . A magmatic deposit is one in which the metal concentration takes place

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Ore Deposit - an overview ScienceDirect Topics

Ore deposits that are associated with mafic to ultramafic igneous rocks can generally be divided into those where the metals of interest are hosted in oxide minerals and those where the metals of interest are held as sulfides or are strongly associated with sulfides (e.g., PGE alloys, arsenides, bismuthinides). The oxide ore bodies include stratiform, podiform, and breccia-related chromite, magnetite-rich layers

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ORE DEPOSIT TYPES AND THEIR PRIMARY EXPRESSIONS K.G ...

2 Ore Deposits TABLE 1 AUSTRALIAN ORE DEPOSIT TYPES WITH TYPICAL ELEMENT ASSOCIATIONS Ore Group Some Deposit Types and Examples Typical Element Associations* Komatiite-associated nickel deposits Mt Keith, Kambalda, Widgiemooltha, Maggie Hays, Jubilee. Ni-Cu-Co-PGE±Te (S) minor As Magmatic Layered mafic-ultramafic intrusion deposits

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20.1: Metal Deposits - Geosciences LibreTexts

11/08/2020  A typical metal deposit might contain a few percent of ore minerals (e.g., chalcopyrite or sphalerite), mixed with the minerals of the original rock (e.g., quartz or feldspar). Other sulfide minerals are commonly present within the ore, especially pyrite.

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13.—Zoning of Ore Deposits: Types and Causes* Earth

The zoning found in ore deposits is dominantly of two distinctive types: that in syngenetic sedimentary deposits, like the Kupferschiefer, and that in common hydrothermal deposits of either epigenetic or syngenetic characteristics. Here, epigenetic hydrothermal deposits include those commonly classified as vein, porphyry copper, contact metasomatic, and Mississippi Valley deposits; the syngenetic

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20.1 Metal Deposits – Physical Geology – 2nd Edition

20.1 Metal Deposits Mining has always been a major part of Canada’s economy. Canada has some of the largest mining districts and deposits in the world, and for the past 150 years, we have been one of the world’s most important suppliers of metals. Extraction of Earth’s resources goes back a long way in Canada. For example, the First Nations of British Columbia extracted obsidian from ...

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Tectonic Settings of Metal Deposits - Geology In

Important metallic deposits formed are Fe, Zn, Cu, Pb, Au and Ag. In the Red Sea metalliferous sediments containing Fe, Zn and Cu are being deposited. Mn oxide deposits are important at some ridges Eg the TAG Hydrothermal field on the Atlantic Ridge. Ultramafic rocks in ophiolites containing asbestos, chromite and nickel ores. These are generally accessible in Phanerozoic orogenic belts to which sites

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Structures of Mineral Deposits - Geology In

Quartz, calcite and pyrite constitute the common gangue minerals in most metallic vein deposits. Lengths and widths of veins are usually in the order of hundreds to thousands of feet in length, less than a foot to a hundred feet in width, up to several thousand feet in depth. Veins formed in the deep volcanic environment generally have good depth continuity of values, while those formed in the epicrustal

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Ore Deposits and Plate Tectonics - Angelfire

Important metallic deposits formed are Fe, Zn, Cu, Pb, Au and Ag. In the Red Sea metalliferous sediments containing Fe, Zn and Cu are being deposited. Mn oxide deposits are important at some ridges Eg the TAG Hydrothermal field on the Atlantic Ridge. Ultramafic rocks in ophiolites containing asbestos, chromite and nickel ores. These are generally accessible in Phanerozoic orogenic belts to ...

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Magmatic Ore Deposits - Sede Medellin

Ore minerals present in pCu deposits include chalcopyrite, bornite, chalcocite, covellite, cuprite and tennorite. The ores consist of concentrated swarms of quartz -sulfide stockworks and sometimes as sulfide disseminations. Some de posits have a zone of secondary enrichment at the surface caused by groundwater leaching and redepositing

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20.1: Metal Deposits - Geosciences LibreTexts

11/08/2020  A typical metal deposit might contain a few percent of ore minerals (e.g., chalcopyrite or sphalerite), mixed with the minerals of the original rock (e.g., quartz or feldspar). Other sulfide minerals are commonly present within the ore, especially pyrite.

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Top Largest Deposits of Metals Around the World

02/05/2019  The continent of Antarctica contains large mineral and metal deposits, but as of the Antarctic Treaty signed in 1998, no commercial mining is allowed there. The following countries produce the largest amounts of iron ores (Note: the general ranking and total figures will vary depending on types of ores produced and the method of reporting). Australia As of 2015, Australia produced 817,000,000 ...

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20.1 Metal Deposits – Physical Geology – 2nd Edition

20.1 Metal Deposits Mining has always been a major part of Canada’s economy. Canada has some of the largest mining districts and deposits in the world, and for the past 150 years, we have been one of the world’s most important suppliers of metals. Extraction of Earth’s resources goes back a long way in Canada. For example, the First Nations of British Columbia extracted obsidian from ...

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Structures of Mineral Deposits - Geology In

Quartz, calcite and pyrite constitute the common gangue minerals in most metallic vein deposits. Lengths and widths of veins are usually in the order of hundreds to thousands of feet in length, less than a foot to a hundred feet in width, up to several thousand feet in depth. Veins formed in the deep volcanic environment generally have good depth continuity of values, while those formed in the epicrustal

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Gold Deposits and Their Geological Classification

Table 1: Commonly recognized types of lode gold deposits and their main geological attributes (cont’d.) Deposit Type Associated Alteration Metal Association Size Grade of Deposits Selected References 1 Paleoplacer Overprinting sericitization and silicification Au> Ag; U common; Au:Ag typically 10:1 1-100 Mt of ore @ 1-10 g/t Au; some up to 1000 t Au

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Mineral and ore deposits SpringerLink

An “Ore mineral” is a mineral that contains potentially valuable metal and is found in ore deposits, By Original definition, that of the Arab alchemist Geber (Jabir ibn Hayyan), a “metal”... This is a preview of subscription content, log in to check access. References. Bateman, A. M., 1950. Economic Mineral Deposits, 2nd ed. New York: Wiley, 916p. Google Scholar. Bauer, G., (Agricola ...

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Ore Deposits and Plate Tectonics - Angelfire

Important metallic deposits formed are Fe, Zn, Cu, Pb, Au and Ag. In the Red Sea metalliferous sediments containing Fe, Zn and Cu are being deposited. Mn oxide deposits are important at some ridges Eg the TAG Hydrothermal field on the Atlantic Ridge. Ultramafic rocks in ophiolites containing asbestos, chromite and nickel ores. These are generally accessible in Phanerozoic orogenic belts to ...

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Magmatic Ore Deposits - Sede Medellin

Ore minerals present in pCu deposits include chalcopyrite, bornite, chalcocite, covellite, cuprite and tennorite. The ores consist of concentrated swarms of quartz -sulfide stockworks and sometimes as sulfide disseminations. Some de posits have a zone of secondary enrichment at the surface caused by groundwater leaching and redepositing

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The Geology of Rare Earth Elements

The iron-oxide copper-gold type of deposit has been recognized as a distinct deposit type only since the discovery of the giant Olympic Dam deposit in South Australia in the 1980s. The Olympic Dam deposit is unusual in that it contains large amounts of rare earth elements and uranium. An economic method for recovering rare earth elements from these deposits has not yet been found. Many other deposits of

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Ores Containing Cobalt Cobalt Institute

Ores Containing Cobalt. Mineralogy . A wide range of minerals contain cobalt although many are rare or unique to individual localities. There are approximately 30 principal cobalt-bearing minerals and over 100 more which contain minor amounts of the metal or include cobalt as a substitute for other elements. Cobalt may substitute for transition metals in many minerals and chemical compounds ...

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