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  • Trace Element Composition of Igneous and Hydrothermal

    The trace element composition of igneous and hydrothermal magnetite from 19 well-studied porphyry Cu ± Au ± Mo, Mo, and W-Mo deposits was measured by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) and then classified by partial least squares-discriminant analysis (PLS-DA) to constrain the factors explaining the relationships between the chemical composition of

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  • MAGMATIC ORE DEPOSITS OF MAGMATIC ORE DEPOSITS OF

    The ore mineralization in Sudbury is largely associated with these three environments, as Introduction Since the initial discovery of copper sulphide ores in the Sudbury area in 1883 during construction of the trans-Canadian railway, and the subsequent discovery of high nickel contents in these ores, Sudbury has remained the single largest source of nickel in the world.

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  • (PDF) Concentration of igneous phosphate ores via froth

    a prominent feature of the igneous phosphate ores (Born and Kahn, 1993). Challenges related to . (Canada Institute of . Mining: Toronto). Pugh, R J and Rutland, M, 1997.

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  • Nickel Sulfide Ores and Impact Melts - 1st Edition

    Description Nickel Sulfide Ores and Impact Melts: Origin of the Sudbury Igneous Complex presents a current state of understanding on the geology and ore deposits of the Sudbury Igneous Complex in Ontario, Canada.

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  • Igneous ~ Mining Engineering Science

    May 06, 2015· Chromite "Chromium ore deposit types"Both olivine and chromite deposits are closely associated with ultramafic plutonic rocks. The bulk of chromite reserves occur in the large, laterally extensive stratiform where tabular seams prevail or Bushveld-type form occurring in stable shield areas as exemplified by the Bushveld Igneous Complex in South Africa, the Great Dyke of Zimbabwe,

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  • Sudbury Complex (Sudbury irruptive; Sudbury nickel

    Reference: LeFort, D.T. (2012) A mineralogical and fluid inclusion study of modified, contact style Ni-Cu-PGE ores in the #1 and #4 shear zones, Garson Mine, Sudbury, Ontario, Canada. Unpublished M.Sc thesis, Saint Mary's University, Halifax, Nova Scotia. 189p.

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  • The Gallery of Minerals With Pictures and Descriptions.

    It is found in igneous, metamorphic, and sedimentary rocks. It is associated with many valuable ore deposits as well. Amethyst is a variety of quartz and owes its purple color to the presence of iron. It is composed of silicone dioxide SiO 2.

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  • Ore deposits related to mafic igneous - Geology papers

    Ore deposits related to mafic igneous rocks • Range from largest, most extensive igneous petrologic systems in the world (e.g., Bushveld Complex) down to moderate-sized bodies like carbonatites. • Magmatic segregation deposits: –formed in intrusive bodies –ore deposits formed during fractional crystallisation • Exceptions:

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  • What Gems Are Found in Igneous Rock?

    Igneous rocks are divided into two types-- volcanic rock (extrusive) and plutonic rock (intrusive) -- depending on where the magma cools. Volcanic or extrusive rock. This is rock that is formed on the surface of the earth. In contact with air or seawater, molten rock cools rapidly and either quenches to a glass (like obsidian) or forms small

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  • Res_SUDBURY COMPLEX - Wits University

    Traditional models for the origin of massive Ni-Cu-PGE deposits from the Sudbury Igneous Complex (SIC), Canada, have given way in recent years to new, mantle-free equivalents. The endogenic models involve explosive volcanism or bolide impact-induced mantle-melting and subsequent magmatism.

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  • METAMORPHIC Ore Deposits ~ Mining Geology

    May 03, 2015· The ore is picked up with diesel-powered shovels, loaded into trucks, and hauled to the primary crusher. At the primary crusher, the ore is reduced to –4 cm and passed by conveyor belt to the rod mill, which is in a closed circuit with a classifier, to grind the ore

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  • Nickel Sulfide Ores and Impact Melts | ScienceDirect

    Nickel Sulfide Ores and Impact Melts: Origin of the Sudbury Igneous Complexpresents a current state of understanding on the geology and ore deposits of the Sudbury Igneous Complex in Ontario, Canada.

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  • Geology of Sudbury Basin

    • Source of most of the ores being mined due to slow cooling of magma. Sudbury Igneous Complex • Two plutons, the Creighton and Murray, both of granite were brought to the surface after the impact. • Both are along the south rim of the basin. The Whitewater Group

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  • Ore resources on Mars - Wikipedia

    Circulation of hot mineral-rich fluids in the fractures from the impact cause hydrothermalism. Important examples are the Cu-Ni sulfides at the Sudbury Igneous Complex in Canada. For a number of years, these ores from the Sudbury area had a value of $2 billion each year. The Sudbury formation has provided us with ores of zinc, copper, gold, and

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  • Iron processing - Ores | Britannica

    Iron processing - Iron processing - Ores: Iron ores occur in igneous, metamorphic (transformed), or sedimentary rocks in a variety of geologic environments. Most are sedimentary, but many have been changed by weathering, and so their precise origin is difficult to determine. The most widely distributed iron-bearing minerals are oxides, and iron ores consist mainly of hematite (Fe2O3), which is

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  • Publications - Lightfoot Geoscience

    The nickel sulfide ores of the Sudbury Igneous Complex comprise one of the most famous and economically important mineral deposits in the world, and thus

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  • Preliminary Evaluation of Trace Hydrocarbon Speciation and

    Mitchell Kerr, Jacob Hanley, Gordon Morrison, John Everest, Colin Bray; Preliminary Evaluation of Trace Hydrocarbon Speciation and Abundance as an Exploration Tool for Footwall-Style Sulfide Ores Associated with the Sudbury Igneous Complex, Ontario, Canada.

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  • Igneous rock associations in Canada 3. Large Igneous

    Sep 01, 2004· SUMMARY Earth history is punctuated by numerous periods during which large volumes of mafic magma were emplaced. Such magmas not generated by a 'normal' spreading ridge or by subduction are termed Large Igneous Provinces (LIPs), and consist of continental flood basalts, volcanic rifted margins, oceanic plateaus, ocean basin flood basalts, submarine ridges, and seamount chains.

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  • Pl. .. URN, GEOLOGY AND RESOURCES OF TITANIUM

    Canada 7. Manganese ore. banded rhodochrosite 8. Aluminum ore. bauxite. Georgia 9. Native copper ore, Keweenawan Peninsula. Mich. 10. Porphyry molybdenum ore. Colo. 11. Zinc ore. Edwards. Titanium Deposits in Alkalic Igneous Rocks By NORMAN HERZ Titanium Minerals in Deposits of Other Minerals By E. R. FORCE

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  • Ore Minerals : What are Ore Minerals? | Geology Page

    Ore Minerals. Image Credits: bonchan/shutterstock Ore Minerals. An ore is a natural occurrence of rock or sediment which contains enough minerals with economically important elements, typically metals, that can be extracted from the deposit economically.

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