• Polymetallic massive sulphide deposits | MIDAS

    As this fluid becomes heated it circulates through the subseafloor, dissolving metals and other elements from the surrounding rocks. Convection carries this hot (up to 450°C), acidic, metalrich fluid back up towards the surface where it is expelled at the seafloor, creating hydrothermal vents (see cartoon below).

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  • Minerals: Polymetallic Nodules | International Seabed Authority

    Polymetallic nodules cover vast areas of the ocean floor and are more abundant in areas off the west coast of Mexico in the Pacific, known as ClarionClipperton Fracture Zone (CCZ); in the Central Indian Ocean Basin (CIOB); and in the Peru basin. They are composed mainly of Mn, Fe, Silies and hydroxides. It is the trace metal contents such as Ni, Cu, Co, and Mn and Rare .

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  • Denison Announces Expansion of HighGrade Uranium .

    15 hours ago · Toro Energy Limited (ASX: TOE) ('the Company ' or 'Toro') is pleased to announce that TED42, the follow up diamond drill hole at the Dimma Nisulphide discovery, has also intersected massive and...

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  • Potential for New NickelCopper Sulfide Deposits in the Lake

    The basic requirements for the formation of NiCu sulfide deposits (known as magmatic sulfide deposits), as determined by recent studies at Noril'sk, Voisey Bay, and other deposits, are outlined in figure 1. Formation of these deposits begins with the melting of hot mantle rising as a plume from deep in the Earth (1). The melting produces basaltic magma that is relatively rich .

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  • Bravo Continues to Intersect HighGrade PGM's and Ni Sulphide .

     · Bravo Continues to Intersect HighGrade PGM's and Ni Sulphide at Luanga Bravo Continues to Intersect HighGrade PGM's and Ni Sulphide at Luanga September 7, 2022, 3:30 AM · 9 min read Highlights...

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  • PGM Associations in CopperRich Sulphide Ore of the Oktyabr .

    These ore types contain from 50 to 70% sulphides and chalcopyrite amount is no more than 6%; the Ni content ranges to %, and the ratio Cu/S = Pyrrhotitechalcopyrite ore occurs at the top of ore horizons. The oremineral content ranges 50 to 60%, and pyrrhotite amount is .

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  • Mineralogy and chemical aspects of some ophiolitic .

    Pentlandite, pyrrhotite, arsenopyrite, gersdorffite and pyrite are the most common sulphide minerals. Gold occurs either as an invisible phase associated with gersdorffite, arsenopyrite, and Asrich pyrite or as native nuggets in listwaenites of Barramiya area.

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  • The nickel laterite challenge

     · Nickel occurs in essentially two ore types; magmatic sulphides and ('wet' or 'dry') laterites. The sulphides typically are found hundreds of metres below ground with principle mineralisation including pentlandite (Ni, Fe)9S8 . Major deposits such as those in Canada and Russia have historically provided the bulk of nickel production.

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  • InMine Appliions of the RadioWave Method in the Sudbury .

    of the NiCu ore bodies of the Sudbury area. North range ore deposits have been discovered mainly in the OnapingLevack area. The ore deposits are spatially related to structural embayments in the footwall which are host to the accumulation of mafic and ultramafic SLN and massive sulphides. The main ore bearing sulphides are pyrrhotite,

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  • Droplets and Bubbles: Solidifiion of Sulphiderich Vapour .

    However, there is no discernible difference between the Cu/Ni ratio of the globules and intercumulus network sulphides (Le Vaillant, et al., in preparation), indiing that sulphide percolation happened at an early stage before the sulfide liquid had started to solidify at about 1100°C, and hence before the generation of residual fractionated silie melt which would be .

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  • Russian Federation Sulphides; of sodium imports by country

    HS Nomenclature used HS 1988/92 (H0) HS Code 283010: Sulphides; of sodium Please note: Exports is gross exports and Imports is gross imports

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  • The Pechenga NiCu deposits, Russia: Data on PGE and Au .

     · THE COMPOSITION AND MODE OF FORMATION OF THE PECHENGA NICKEL DEPOSITS, KOLA PENINSULA, NORTHWESTERN RUSSIA S. Barnes, V. Melezhik, S. Sokolov Geology 2001 The Pechenga Nisulfide deposits, in the Kola Peninsula of Russia, are associated with ferropicrite flows and intrusions.

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  • Au and Te Minerals in Seafloor Massive Sulphides from Semyenov .

     · The Semyenov2 hydrothermal field loed at 13°31′N of the MidAtlantic Ridge (MAR) is associated with an oceanic core complex (OCC) and hosted by peridotites and basalts with minor amounts of gabbro and plagiogranites. Seafloor massive sulphides (SMS) are represented by chimneys with zonality, massive sulphides without zonality and sulphide .

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  • Geochemistry of the Kola River and Lake Imandra, northwestern Russia

     · Ni shows highest enrichment (27 times) in the sulphiderich sediment zone, compared with the preindustrial values. The distribution of P, Sr, Ba and Co is less influenced by secondary processes in the surface sediment because of their major association with primarily particles from the apatite industry.

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  • CopperRich Magmatic NiCu PGE deposits

    % Ni, % Cu, g/t TPM over Including % Ni, % Cu, g/t TPM over (core length) Massive sulphide between Victor Footwall Cu zone BH MAC078G % Ni, % Cu, 8 g/t TPM over Including % Ni, % Cu, 15 g/t TPM over (core length) Mineralization between – 21

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  • We Don't Need Nickel From Russia

     · April 15, 2022. We don't need nickel from Russia. There is a critical need for nickel and other EV battery metals worldwide, but we don't need to get it from Russia. In March 2022, Morgan ...

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