المنتجات

The petrogenesis and platinum-group element

Selected platinum-group element (PGE) and chalcophile elements plotted against Nb and Au for Newer Volcanic Province basalt suites. (Data are given in Table 2.) 196 D. C. Vogel, R.R. Keays/Chemical Geology 136 (1997) 181-2Ø tion coefficients of trends are observed between the three basalt suites. The compatible behaviour of Ir, Pd, and Pt …

[PDF] A review of the behaviour of Platinum Group …

Understanding the distribution of the chalcophile and platinum-group element … Expand. 127. Save. The distribution of platinum group elements (PGE) and other chalcophile elements among sulfides from the Creighton Ni–Cu–PGE sulfide deposit, Sudbury, Canada, and the origin of palladium in pentlandite.

Platinum-group element geochemistry of the Forest Reef …

1. Introduction. Platinum-group elements (PGE; Os, Ir, Ru, Rh, Pt, Pd) are highly chalcophile and can be used to constrain the role of sulfides in magmatic processes, including mantle petrogenesis, magmatic differentiation and the timing of sulfide saturation (Naldrett and Duke, 1980).The PGE geochemistry of ultra-mafic to mafic systems has …

Underplated melts control sulfide segregation at the

Duran, C. J., Barnes, S. J. & Corkery, J. T. Chalcophile and platinum-group element distribution in pyrites from the sulfide-rich pods of the Lac des Iles Pd deposits, Western Ontario, Canada ...

Platinum-group minerals and the genesis of the sulfide PGE …

The chalcophile elements of the second group have higher contents, exceeding the mantle ones by 1–2 orders of magnitude ... Platinum group minerals in the OH330 ore are formed in a wide temperature range (from 900 to 400°С) and are mainly represented by Pt Fe alloys, bismuth-tellurides, and tellurides (kotulskite, keitconnite, …

Chalcophile and platinum-group element (PGE) …

Chalcophile and platinum-group element (PGE) concentrations in the sulfide minerals from the McCreedy East deposit, Sudbury, Canada, and the origin of …

Platinum-group element mineralization in an As-rich …

The distribution of platinum group elements (PGE) and other chalcophile elements among sulfides from the Creighton Ni–Cu–PGE sulfide deposit, Sudbury, Canada, and the origin of palladium in pentlandite. Mineralium Deposita, Vol. 45, Issue. 8, p. 765.

Partitioning of platinum-group elements and Au between …

The platinum-group elements (PGE; Os, Ir, Ru, Rh, Pt, and Pd) and Au are known to be highly compatible with sulfide melt in magmatic systems. ... The concentrations of chalcophile elements in sulfide-undersaturated basalts will therefore be controlled by the solubility of these phases and by equilibrium partitioning between silicate or oxide ...

The effect of platinum-group minerals on

The effect of platinum-group minerals on differentiation of platinum-group elements in magmatic sulfide deposits: Evidence from the Cu-Ni-PGE deposits in the Yangliuping area of the Emeishan large igneous province, SW China ... A laser ablation ICP-MS study of platinum-group and chalcophile elements in base metal sulfide …

Partitioning of platinum-group elements and Au between …

Understanding of the geochemistry of the chalcophile elements [i.e., Os, Ir, Ru, Pt, Pd (platinum-group elements), and Au, Cu, Ni] has been informed for at least 20 years by the common assumption … Expand

Distribution of chalcophile elements during crystallisation …

Duran CJ, Barnes SJ, Corkery JT (2015) Chalcophile and platinum-group element distribution in pyrites from the sulfide-rich pods of the Lac des Iles Pd deposits, Western Ontario, Canada: implications for post-cumulus re-equilibration of the ore and the use of pyrite compositions in exploration. J Geochem Explor 158:223–242

Redox control of the partitioning of platinum and palladium …

The distribution of platinum group elements (PGE) and other chalcophile elements among sulfides from the Creighton Ni–Cu–PGE sulfide deposit, Sudbury, Canada, and the origin of palladium in ...

The distribution of platinum group elements (PGE) and other chalcophile …

It is well known that magmatic base metal sulfide (BMS) liquids collect platinum group elements (PGE) and other chalcophile elements (Ag, As, Au, Bi, Cd, Co, Cu, Mo, Ni, Pb, Re, Sb, Se, Sn, Te, and Zn) and form magmatic Ni–Cu–PGE sulfide ore deposits (e.g., Naldrett 2004).However, relatively little is known of the processes that …

(PDF) Distribution of platinum-group and chalcophile elements …

The concentrations of platinum-group elements (PGE) and chalcophile elements Ni, Co, Au, Ag, Se, Re, Cd, Bi, Te and As have been determined by laser ablation-inductively coupled plasma-mass ...

Distribution of platinum-group and chalcophile elements …

The concentrations of platinum-group elements (PGE) and chalcophile elements Ni, Co, Au, Ag, Se, Re, Cd, Bi, Te and As have been determined by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) in base metal sulfide minerals (BMS) from the Aguablanca Ni–Cu deposit, SW Spain. The main aim was to …

Distribution of platinum-group and chalcophile elements in …

Platinum-group and chalcophile element concentrations vary as a function of the BMS and ore types. The partitioning behavior of some of these metals during the …

Chalcophile and platinum-group element (PGE) …

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 for …

Chalcophile Element Heterogeneity in Ni-Cu-(Platinum Group …

Platinum-group elements in the Bravo Intrusion, Cape Smith fold belt, northern Quebec The Canadian Mineralogist Chalcophile Element Geochemistry and Metallogenesis of Komatiitic Rocks in the Abitibi Greenstone Belt, Canada

A laser ablation ICP-MS study of platinum-group and chalcophile …

The paper presents concentrations of the platinum-group and chalcophile elements in the base metal sulfides (BMS) from the Jinchuan Ni–Cu sulfide deposit determined by laser ablation-inductively coupled plasma-mass spectrometry. Mass balance calculations reveal that pentlandite hosts a large proportion of Co, Ni and Pd (> 65%), …

Chalcophile and platinum-group element distribution in

Chalcophile and platinum-group element distribution in pyrites from the sulfide-rich pods of the Lac des Iles Pd deposits, Western Ontario, Canada: Implications …

Mineralogy and geochemistry of platinum-group elements …

The concentrations of platinum-group elements (PGE) and chalcophile elements Ni, Co, Au, Ag, Se, Re, Cd, Bi, Te and As have been determined by laser ablation-inductively coupled plasma-mass ...

Deep mantle cycle of chalcophile metals and sulfur in …

Understanding the subduction-driven recycling of economically important chalcophile metals (e.g., Cu, Au, Ag, and platinum-group elements, PGEs) and volatiles (e.g., sulfur) is critical for assessing models of ore formation. However, whether the sulfide remains stable in recycled altered oceanic crust (AOC) in the mantle is unclear, and the ...

Partition Coefficients of Platinum Group and Chalcophile …

Partition Coefficients of Platinum Group and Chalcophile Elements Between Arsenide and Sulfide Phases as Determined in the Beni Bousera Cr-Ni Mineralization …

A laser ablation ICP-MS study of platinum-group and chalcophile …

Since the advent of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), the chalcophile and platinum-group element (PGE) geochemistry of BMS has been investigated in a variety ...

Distribution of chalcophile and platinum-group elements …

Abstract. In most magmatic sulfide deposits, platinum-group elements (PGE) are found both within the structure of the base metal sulfides (BMS), pyrrhotite …

Platinum-group elements, S, Se and Cu in highly depleted …

Platinum-group and chalcophile elements were not mobilized during dunite formation and mostly preserve the signature of precursor harzburgites, except for higher Ru and lower Pt contents caused by precipitation and removal of platinum-group minerals. During serpentinization at low temperature (<250 °C) and reducing conditions, mantle …

Contrasting platinum-group element geochemistry of post …

The Urumieh-Dokhtar magmatic arc (UDMA), Iran, hosts giant to small porphyry Cu ± Au deposits associated with Miocene post-collisional magmatism. Previous studies suggested that the ore-bearing suites are derived from chalcophile element-rich juvenile lower crustal igneous rocks, and that metal contents in the magmas play an …

Platinum-group element geochemistry of the volcanic rocks …

We report whole-rock major, trace, and platinum-group element (PGE) geochemistry of volcanic rocks from the Teutonic Bore complex that hosts the Jaguar and Bentley Cu–Zn volcanogenic massive sulfide (VMS) deposits. This study aims to understand their sulfide saturation history and chalcophile element evolution during …