— The partitioning behavior of platinum group elements in magmas is critical for their use as tracers of planetary accretion and in understanding magmatic sulfide deposits.

 — Based on textural features and mineral associations, four types of magnetite with distinct chemical composition are identified: (1) MSS magnetite, (2) ISS magnetite, …

 — Complex assemblages consisting of native iron + pentlandite, pentlandite + heazlewoodite + magnetite, heazlewoodite + magnetite + platinum-group minerals (PGM), and millerite ± heazlewoodite are associated with three types of altered chromites (partly altered chromite, double-rimmed chromite, and porous chromite) discovered in the …

 — The development of a principally new approach to preparation of IL-modified magnetic nanoparticles and their application as sorbent materials for recovery of …

 — An enrichment in nickel (Ni) or platinum group elements (PGE) is seldom observed in ores of the iron oxide–copper–gold (IOCG) type. This phenomenon is, however, known from a few deposits and prospects in the Carajás Mineral Province, Brazil. The Ni-PGE enrichment is explained, in part, by the spatial association of the IOCG-type ores …

 — Most deposits of platinum group elements (PGE), chromite, and vanadiferous magnetite occur in mafic intrusions. Several represent some of the most laterally continuous and uniform, in terms of grade and thickness, of all orebodies. Such continuity presents one of the major challenges to orebody modeling, in that any proposed process must be ...

 — The trace-element composition of magnetite in Ni–Cu–platinum-group element (PGE) sulfide deposits is influenced by magmatic evolution, fractional crystallization of sulfide liquid, and post ...

Interaction of a PGE-Fe-Cl rich fluid with clinopyroxene and olivine increased the fluids pH and decreased PGE and Fe solubility depositing a PGE enriched magnetite within the …

 — Mineralogical and chemical zonations observed in massive sulfide ores from Ni-Cu-platinum group element (PGE) deposits are commonly ascribed to the fractional crystallization of monosulfide solid solution (MSS) and intermediate solid solution (ISS) from sulfide liquid. Recent studies of classic examples of zoned orebodies at Sudbury and …

 — Platinum-group elements (PGEs) are key tracers for planetary accretion and core–mantle–crust differentiation 1,2,3,4,5 and the formation of magmatic sulfide deposits in Earth's crust 2,6,7 ...

Magmatic sulfide deposits containing nickel (Ni) and copper (Cu), with or without (±) platinum-group elements (PGE), account for approximately 60 percent of the world's nickel production. Most of the remainder of the Ni production is derived from lateritic deposits, which form by weathering of ultramafic rocks in humid tropical conditions.

 — Crystallisation of basic magmas can be accompanied by syngenetic concentration of ore minerals, which can lead to the formation of economic ore deposits of chromite, titanian magnetite, ilmenite, pentlandite, …

 — Berzina (2012) studied the concentration of platinum group elements (PGE) in magmatic magnetite from porphyry Cu–Mo deposits in Siberia, Russia. This study shows that higher levels of Rh and lower contents of Pt and Pd discriminate magnetite in mineralization from those in the host rocks.

 — The DMS magnetite project is described by Ironveld CEO Martin Eales as being beneficial for its Ironveld Mining subsidiary in terms of reducing overall average mining costs and, in time, likely ...

 — Magmatic sulfide deposits consist of pyrrhotite, pentlandite, chalcopyrite (± pyrite), and platinum-group minerals (PGM). Understanding the distribution of the chalcophile and platinum-group element (PGE) concentrations among the base metal sulfide phases and PGM is important both for the petrogenetic models of the ores and …

 — Olivine is replaced by serpentine, magnetite, ... Platinum group elements for twenty bulk chromitite, harzburgite, and dunite samples were analyzed using ICP-MS after Ni–sulfide fire assay. After pre-concentration, the dissolved sample was analyzed using Perkin-Elmer Sciex ELAN 9000 ICP-MS at Act Lab, Ontario, Canada. ...

 — 1. Introduction. Platinum-group elements (PGE) are widely used in tracing various geological processes, such as the origin and evolution of mantle-derived silicate melts and the formation of magmatic sulfide deposits (Barnes and Ripley, 2016; Harvey and Day, 2016).Magmatic sulfide deposits, including Cu-Ni-PGE deposits and PGE deposits, …

The concentrations of platinum‐group elements (PGE) have been analyzed in primary magmatic magnetite samples from the Zhireken, Shakhtama and Aksug porphyry Cu‐Mo deposits (Siberia, Russia) by laser ablation‐inductively coupled plasma mass spectrometry to determine the range of PGE contents in magnetites and to check whether magnetite …

 — A leaching process for platinum contained in a magnetite ore was studied, as an alternative process to cyanidation and aqua regia digestion. ... The magnetite mineral matrix was not attacked during the leaching of platinum group metals. Graphical abstract. Platinum, palladium and gold extraction from a magnetite concentrated ore.

 — In the magnetite bodies palladium-rich minerals, especially bismuthides and antimonides, are the most abundant platinum-group minerals (PGM). In most cases …

 — Methods of characterizing and recovering the platinum group minerals are reviewed in this paper. First, a classification of platinum group minerals (PGMs) ore …

Platinum-group element (PGE) geochemistry combined with elemental geochemistry and magnetite compositions are reported for the Mesoproterozoic Zhuqing Fe–Ti–V oxide ore-bearing mafic intrusions in the western Yangtze Block, SW China. All the Zhuqing gabbros display extremely low concentrations of chalcophile elements and PGEs. The oxide-rich …

 — Platinum-group element (PGE) geochemistry combined with elemental geochemistry and magnetite compositions are reported for the Mesoproterozoic Zhuqing Fe-Ti-V oxide ore-bearing mafic intrusions in ...

 — Formation of Platinum: Magmatic Processes: The primary source of it is magmatic ore deposits, which originate from the cooling and solidification of molten rock (magma) deep within the Earth's mantle and crust. These deposits are associated with igneous rocks and are known as "platinum group element (PGE) deposits." PGEs, …

 — The platinum-group minerals in Elatsite and Santo Tomas II (Tarkian et al., 2003, Tarkian and Koopmann, 1995) are also found in chalcopyrite-bornite-magnetite assemblages as inclusions in chalcopyrite. In contrast to these deposits the majority of platinum-group minerals in Skouries are present as discrete crystals on the edge of …

 — Fe 3 O 4 @PEG@Cyphos® IL 101 sorbent was synthesized for magnetic solid-phase extraction of platinum group metals from technological solutions. A single step method has been developed for the synthesis, which includes the formation of magnetite nanoparticles, their coating with polymer shell and modification with IL.

 — Magnetite is rock mineral and one of the most important iron ore minerals with chemical formula is iron(II,III) oxide, Fe2+Fe3+2O4 .It also as the name magnetic minerals to attracted to a magnet. It is the most magnetic natural occuring minerals in the World. Small grains of magnetite occur in almost all igneous and metamorphic rocks.. …

Literature review on platinum-group minerals 2.1. Platinum-group element mineralogy 2.1.1. Introduction ... (Cabri, 1981), since magnetite can be associated with Pt-Fe alloys. Parry (1984) reported PGE values of typically less than 1 ppmw for mixtures of magnetite and ilmenite. 2.1.2.3. PGEs hosted in silicates

 — The trace-element composition of magnetite in Ni–Cu–platinum-group element (PGE) sulfide deposits is influenced by magmatic evolution, fractional crystallization of sulfide liquid, and post-magmatic processes, and, therefore, may record ore-forming processes. The Jinchuan Ni–Cu–(PGE) sulfide deposit in NW China contains a variety of ...