mantlederived magmas and magmatic nicupge deposits

  • Minerals Free Full-Text Tonalite-Dominated Magmatism

    Tonalite-dominated magmatism in the Abitibi Subprovince comprises crustal melts as well as a significant proportion of mantle-derived magmas and this may be essential for Cu-Au magmatic Tonalite-dominated magmatism in the Abitibi Subprovince comprises crustal melts as well as a significant proportion of mantle-derived magmas and this may be essential for Cu-Au magmatic-hydrothermal mineralizing systems. Service Online
  • PGE geochemistry of the Eagle Ni Cu (PGE) deposit Upper

    Ni–Cu–(PGE) sulfide mineralization at the Eagle deposit occurs as disseminated and semi-massive occurrences in olivine-rich rocks as massive sulfide and as veins within sedimentary country Ni–Cu–(PGE) sulfide mineralization at the Eagle deposit occurs as disseminated and semi-massive occurrences in olivine-rich rocks as massive sulfide and as veins within sedimentary country rocks. Parental magmas were picritic or ferro-picritic (e.g. Nicholson and Schulz 2009) and the introduction of country rock-derived sulfur appears Service Online
  • Advances in Ni-Cu-PGE Sulphide Deposit Models and

    Advances in Ni-Cu-PGE Sulphide Deposit Models and Implications for Exploration Technologies Lightfoot P. C. 1 _____ 1. CVRD Exploration Canada Inc. Cliff Ontario Canada ABSTRACT It is commonly possible to identify groups of orebodies within one cluster or camp of temporally and spatially constrained deposits

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  • A synthesis of magmatic Ni-Cu-(PGE) sulfide deposits in

    Magmatic Ni-Cu-(PGE) sulfide deposits in the ca. 260-Ma Emeishan large igneous province (LIP) are all hosted in relatively small mafic-ultramafic intrusions with surface areas usually less than 1 km 2 . These deposits are mainly distributed in the Danba Panzhihua-Xichang (Panxi) Huili Yuanmou Midu Funing and Jinping regions in SW China and the Ta Khoa region in northern Vietnam.

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  • Atmospheric Sulfur in Archean Komatiite-Hosted Nickel Deposits

    Nov 20 2009 · The range of Δ 33 S values for magmatic mantle-derived Fe-S and Neoarchean VMS deposits is from Fig. 1. δ 56 Fe values (0.09 ± 0.05‰) for the bulk silicate Earth were expanded The range of Δ 33 S values for magmatic mantle-derived Fe-S and Neoarchean VMS deposits is from Fig. 1. δ 56 Fe values (0.09 ± 0.05‰) for the bulk silicate Earth were expanded down to −0.35‰ based on a fractionation factor between pyrrhotite and peralkaline rhyolitic melt to infer the iron isotope composition of magmatic mantle-derived Service Online
  • Sulfide Saturation in Mafic Magmas Is External Sulfur

    posits and that collection of mantle-derived sulfide in sufficient quantities to produce orebodies is a rare process. We propose that magmatic Ni-Cu-(PGE) sulfide ore formation normally requires significant sulfide supersaturation and that the addition of sulfur derived from xenoliths is the most viable mechanism for pro-

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  • Tectonic controls on Ni and Cu contents of primary mantle

    Tectonic controls on Ni and Cu contents of primary mantle-derived magmas for the formation of magmatic sulfide deposits Zhuosen Yao1 2 4 KeZhang Qin1 2 3 † and James e. mungall4 Tectonic controls on Ni and Cu contents of primary mantle-derived magmas for the formation of magmatic sulfide deposits Zhuosen Yao1 2 4 KeZhang Qin1 2 3 † and James e. mungall4 1Key Laboratory of Mineral Resources Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China 2University of Chinese Academy of Sciences Beijing 100049 China Service Online
  • Temporal and spatial controls on the formation of magmatic

    Magmatic PGE and Ni–Cu deposits form in contrasting geologic environments and periods. PGE deposits predominantly occur in large layered intrusions emplaced during the late Archean and early Proterozoic into stabilized relatively S-poor cratonic lithosphere that provides enhanced preservation potential. The magmas ascend through intracratonic sutures where extension and rifting is limited

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  • Up down or sideways emplacement of magmatic Fe–Ni–Cu

    Many of magmas that formed magmatic Ni–Cu–PGE deposits interacted with their wall rocks some of which were unconsolidated (e.g. Alexo–Dundonald Kambalda Perseverance and Raglan) or semiconsolidated (e.g. Duluth) and contained saline to hypersaline and sometimes carbonaceous fluids that may have modified interfacial tensions.

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  • Exploration for magmatic Ni-Cu-PGE sulphide deposits a

    S.Afr.J.Geol. 1998 I 0 I (3) 237-253 237 Exploration for magmatic Ni-Cu-PGE sulphide deposits a review of recent advances in the use of geochemical tools and their application to

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  • Magmatic Ni-Cu-(PGE) deposits in magma plumbing systems

    The three most crucial factors for the formation of large and super-large magmatic sulfide deposits are (1) a large volume of mantle-derived mafic-ultramafic magmas that participated in the formation of The three most crucial factors for the formation of large and super-large magmatic sulfide deposits are (1) a large volume of mantle-derived mafic-ultramafic magmas that participated in the formation of the deposits (2) fractional crystallization and crustal contamination particularly the input of sulfur from crustal rocks resulting in sulfide immiscibility and segregation and (3) the Cited by 27 Service Online
  • Mantle-derived magmas and magmatic Ni-Cu-(PGE) deposits

    than strictly magmatic. Because the focus of this paper is on Ni-Cu-(PGE) deposits Type III deposits will not be considered in much detail. Host Rocks and Parental Magmas With the exception of the than strictly magmatic. Because the focus of this paper is on Ni-Cu-(PGE) deposits Type III deposits will not be considered in much detail. Host Rocks and Parental Magmas With the exception of the Sudbury deposits which formed in a crustal impact melt magmatic Ni-Cu-(PGE) deposits are hosted by a wide range of olivine-bearing mantle-derived Cited by 213 Service Online
  • Tectonic controls on Ni and Cu contents of primary mantle

    A closer look at shocked meteorites Discovery of new high-pressure minerals In-situ dating of metamorphism in Adirondack anorthosite A new style of rare metal granite with Nb-r

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  • Geological environments and metal endowments found in

    Galley A.G. Hannington M. and Jonasson I. 2007 Volcanogenic massive sulphide deposits in Goodfellow W.D. ed. Mineral deposits of Canada—A synthesis of

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  • Tectonic controls on Ni and Cu contents of primary mantle

    A closer look at shocked meteorites Discovery of new high-pressure minerals In-situ dating of metamorphism in Adirondack anorthosite A new style of rare metal granite with Nb-r

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  • Michael LesherWikipedia

    Carl Michael Lesher (born 1951) is an American geologist. He is an authority on the geology and origin of nickel-copper-platinum group element deposits especially those associated with komatiites their physical volcanology and localization the geochemistry and petrology of associated rocks and controls on their composition.

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  • Siderophile and chalcophile metal variations in basalts

    Jun 01 2012 · Read "Siderophile and chalcophile metal variations in basalts Implications for the sulfide saturation history and Ni–Cu–PGE mineralization potential of the Tarim continental Read "Siderophile and chalcophile metal variations in basalts Implications for the sulfide saturation history and Ni–Cu–PGE mineralization potential of the Tarim continental flood basalt province Xinjiang Province China Ore Geology Reviews" on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.Service Online
  • Exploration for Magmatic Ore DepositsCanadian Mining

    Exploration for Magmatic Ore Deposits On site (3 cr.) and webcasting delivery (non-credit). 10-day intensive course in magmatic Ni-Cu-(PGE) PGE Cr and Ti-V deposits including 3 days of Exploration for Magmatic Ore Deposits On site (3 cr.) and webcasting delivery (non-credit). 10-day intensive course in magmatic Ni-Cu-(PGE) PGE Cr and Ti-V deposits including 3 days of theoretical material 8 days of exploration applications and case studies and (weather permitting) a 1/2 to 3/4- day field trip in the Sudbury Igneous Complex. Service Online
  • Ore Deposits Magmatic Flashcards Quizlet

    - mantle-derived magmas react with and commonly partially melt crustal rocks.-Creates disequilibrium in magma chambers and leads to crystallization of new minerals.-Could lead to saturation in sulfur which is critical for forming many kinds of ore deposit.

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  • Exploration for magmatic Ni-Cu-PGE sulphide deposits a

    Exploration for magmatic Ni-Cu-PGE sulphide deposits a review of recent advances in the use of geochemical tools and their application to some South African ores W.D. Maier Department of Exploration for magmatic Ni-Cu-PGE sulphide deposits a review of recent advances in the use of geochemical tools and their application to some South African ores W.D. Maier Department of Geology University of Pretoria Pretoria 0002 Republic of South Africa S.-J. Barnes CERM Universite du Quebec Chicoutimi G7H 2B 1 Canada S.A. de Waal Service Online
  • 100th Anniversary Volume (Print)

    Student Research Grants Graduate Student Fellowship Program Student Field Trip Program Michael J. Fitzgerald Student Mapping Course

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  • Formation of magmatic nickel-sulfide ore deposits and

    Nickel-copper sulfide ore deposits are found at the base of mafic and ultramafic bodies. All their host rocks except the Sudbury Igneous Complex are thought to be mantle derived melts. The Sudbury Igneous Complex is thought to be the product of complete melting of continental crust. In the case of mantle-derived magmas a high degree of partial melting of the mantle serves to enrich the

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  • Tectonic controls on Ni and Cu contents of primary mantle

    Tectonic controls on Ni and Cu contents of primary mantle-derived magmas for the formation of magmatic sulfide deposits Zhuosen Yao1 2 4 KeZhang Qin1 2 3 † and James e. mungall4 1Key Laboratory of Mineral Resources Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China 2University of Chinese Academy of Sciences Beijing 100049 China

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  • Noble Metals Subcontinental Lithosphere and Ni-Cu-PGE

    May 28 2013 · Recent research by Kamenetsky et al. published in Geology provides insight into the nature of the parental magmas potentially responsible for the formation of nickel-copper-platinum Recent research by Kamenetsky et al. published in Geology provides insight into the nature of the parental magmas potentially responsible for the formation of nickel-copper-platinum group element (Ni-Cu-PGE) deposits in intra-plate environments. Previous researchers have illustrated the importance of the mantle-derived magmas and subcontinental lithospheric mantle in the formation of Ni-Cu-PGE Service Online
  • Advances in Ni-Cu-PGE Sulphide Deposit Models and

    Advances in Ni-Cu-PGE Sulphide Deposit Models and Implications for Exploration Technologies Lightfoot P. C. 1 _____ 1. CVRD Exploration Canada Inc. Cliff Ontario Canada ABSTRACT It Advances in Ni-Cu-PGE Sulphide Deposit Models and Implications for Exploration Technologies Lightfoot P. C. 1 _____ 1. CVRD Exploration Canada Inc. Cliff Ontario Canada ABSTRACT It is commonly possible to identify groups of orebodies within one cluster or camp of temporally and spatially constrained deposits Service Online
  • Flood Basalts and Magmatic Ni Cu and PGE sulphide

    Mass-balance considerations suggest that as little as 1 of the S available in the mantle-derived magmas and assimilated evaporite-rich sediments at Noril sk is locked up in the known deposits. The sulphides at Noril sk have unusually high metal contents and so they must have interacted with large volumes of magma.

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  • Mantle-derived magmas and magmatic Ni-Cu-(PGE) deposits

    Magmatic Fe-Ni-Cu ± platinum-group element (PGE) sulfide deposits form when mantle- derived mafic and ultramafic magmas become saturated in sulfide and segregate immiscible sulfide liquid

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  • Copper-Rich Magmatic Ni-Cu- PGE deposits

    1 SIMEXMIN 2014 Symposium May 14 2014 Copper-Rich Magmatic Ni-Cu-PGE deposits Outline of Talk • Introduction and characteristics • Examine key examples of Cu-rich magmatic systems to highlight

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  • Flood Basalts and Magmatic Ni Cu and PGE sulphide

    Mass-balance considerations suggest that as little as 1 of the S available in the mantle-derived magmas and assimilated evaporite-rich sediments at Noril sk is locked up in the known deposits. The sulphides at Noril sk have unusually high metal contents and so they must have interacted with large volumes of magma.

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  • Mantle-derived helium in two Peruvian hydrothermal ore

    Strong differences exist between the helium isotopic compositions of mantle-derived magmas 1–8 axial vent hotspring fluids 9–14 subduction-related magmas 15–20 and many associated hot

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  • 100th Anniversary Volume (Print)

    Student Research Grants Graduate Student Fellowship Program Student Field Trip Program Michael J. Fitzgerald Student Mapping Course

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  • Copper-Rich Magmatic Ni-Cu- PGE deposits

    1 SIMEXMIN 2014 Symposium May 14 2014 Copper-Rich Magmatic Ni-Cu-PGE deposits Outline of Talk • Introduction and characteristics • Examine key examples of Cu-rich magmatic systems to highlight

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  • Copper-Rich Magmatic Ni-Cu- PGE deposits

    1 SIMEXMIN 2014 Symposium May 14 2014 Copper-Rich Magmatic Ni-Cu-PGE deposits Outline of Talk • Introduction and characteristics • Examine key examples of Cu-rich magmatic systems to highlight

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  • A synthesis of magmatic Ni-Cu-(PGE) sulfide deposits in

    Abstract Magmatic Ni-Cu-(PGE) sulfide deposits in the ca. 260-Ma Emeishan large igneous province (LIP) are all hosted in relatively small mafic-ultramafic intrusions with surface areas usually less than 1 km 2.These deposits are mainly distributed in the Danba Panzhihua-Xichang (Panxi) Huili Yuanmou Midu Funing and Jinping regions in SW China and the Ta Khoa region in northern Vietnam.

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  • Value of mineral deposits associated with mafic DeepDyve

    Jan 01 2016 · Read "Value of mineral deposits associated with mafic and ultramafic magmatism Implications for exploration strategies Ore Geology Reviews" on DeepDyve the largest Read "Value of mineral deposits associated with mafic and ultramafic magmatism Implications for exploration strategies Ore Geology Reviews" on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. Service Online
  • Economic GeologyMineral Processing Metallurgy

    Arndt N.T. et al. Mantle-Derived Magmas and Magmatic Ni-Cu-(PGE) Deposits Economic Geology 100th Anniversary Volume Society of Economic Geologists 2005 5-23. Barnes S-J. Arndt N.T. et al. Mantle-Derived Magmas and Magmatic Ni-Cu-(PGE) Deposits Economic Geology 100th Anniversary Volume Society of Economic Geologists 2005 5-23. Barnes S-J. and Lightfoot P.C. Formation of magmatic nickel-sulfide ore deposits and processes affecting their copper and platinum-group element contents Economic Geology 100th Service Online