platinum group mineralogy

The formation of alluvial platinum-group minerals: present ...

Oberthür, T., Weiser, T.W. and Gast, L. (2003) Geochemistry and mineralogy of platinum-group elements at Hartley Platinum Mine, Zimbabwe. Part 2: supergene redistribution in the oxidized Main Sulfide Zone of the Great Dyke, and alluvial platinum-group minerals. Mineralium Deposita, 38, 344 – 355.CrossRef Google Scholar

2.1. Platinum-group element mineralogy

Platinum-group element mineralogy of the Merensky Reef, UG-2 Reef and the Great Dyke of Zimbabwe Microbeam techniques enable the investigator to analyse the PGMs quantitatively to understand better the platinum-group element (PGE) distribution between discrete PGMs. As stated earlier, the number of identified PGMs exploded after the

Minerals | Free Full-Text | Mineralogy of Platinum-Group ...

We describe assemblages of platinum-group minerals (PGM) and associated PGE–Au phases found in alluvium along the River Bolshoy Khailyk, in the western Sayans, Russia. The river drains the Aktovrakskiy ophiolitic …

Geochemistry and mineralogy of platinum group element …

The paper discusses the results of studying the contents of platinum group elements (PGE) and platinum group minerals (PGM) in ores of the Kingash deposit. The bulk of PGE has been established as concentrated in disseminated sulfide chalcopyrite–pyrrhotite–pentlandite ore and is represented by palladium bismuth–tellurides. During melt differentiation, the content …

The platinum-group mineralogy of the Merensky Reef at …

The platinum-group mineralogy of the Merensky Reef at the Impala platinum mines, South Africa, has been investigated. Polished sections were prepared from pyroxenitic and pegmatoidal reef samples collected underground. Microscope studies were followed up by the identification and analysis of platinum-group minerals by electron microprobe.The ...

Platinum-group element mineralogy and geochemistry of ...

Platinum-Group elements and gold geochemistry and mineralogy in the Ray–Iz ophiolitic chromitites, Polar Urals D.G. Eliopoulos, et al. (Eds.), Mineral Exploration and Sustainable Development, Millpress, Rotterdam ( 2003 ), pp. 599 - 602

The Mineralogy of Platinum Group Elements in Ophiolite ...

The Mineralogy of Platinum Group Elements in Ophiolite Peridotite, New Caledonia. rutheniridosmine, laurite and iridosmine. These form primary. to solidification of the host harzburgite. There is no specific. association with trace inclusions of transition metal sulphides. The crystallization of then: Ir. Os and Ru minerals may have.

(PDF) Geochemistry and mineralogy of platinum-group ...

The Main Sulfide Zone (MSZ) is the most prominent layer of the Great Dyke layered intrusion carrying economic platinum-group element (PGE) mineralization. At the Hartley Platinum Mine, the MSZ is up to some meters thick and is composed of a basal

A Definitive Work on the Mineralogy of the Platinum …

In both cases the platinum group elements are by-products from the copper-nickel sulphide mines and have much lower platinum : palladium ratios; at Noril'sk it is 0.4. Most of the information on the recovery of the platinum metals is concerned with beneficiation techniques and their relationship to the mineralogy of different ores.

Platinum-Group Elements: Petrology, Geochemistry ...

This thematic issue presents 29 original research papers on the petrology, geochemistry, and mineralogy of deposits of the platinum-group elements. Most of these were presented at the 9th International Platinum Symposium held in Montana, in July 2002.

(PDF) Mineralogy and distribution of platinum-group ...

Platinum-group minerals (PGM) were discovered in the Aikora River area of Papua New Guinea. This area is situated in the Papuan Ultramafic Belt, in the eastern part of the island.

Platinum group elements zoning and mineralogy of ...

Platinum-group elements in the Merensky reef; I, PGE in solid solution in basis metal sulfides and the down-temperature equilibrium history of Merensky ores Contributions to Mineralogy and Petrology, 122 ( 1995 ), pp. 241 - 251

Platinum-group element and sulphide mineralogy in ...

(2008). Platinum-group element and sulphide mineralogy in ultramafic complexes at western Andriamena, Madagascar. Applied Earth Science: Vol. 117, No. 1, pp. 1-10.

Platinum-Group Element Mineralogy and Geochemistry …

Platinum-Group Element Mineralogy and Geochemistry in Chromitites of the Nurali Mafic-Ultramafic Complex (Southern Urals, Russia) Federica Zaccarini1, V. Evgeny Pushkarev 2, B. German Fershtater, Roberto Cabella3 and Giorgio Garuti1 1Department of Earth Sciences, University of Modena, (Italy)

Platinum-group minerals from Seyba, Eastern Sayans, …

Introduction. Placers of platinum-group minerals (PGM) in which the relatively refractory iridium subgroup of platinum-group elements (IPGE: Ir, Os and Ru) predominate are typically associated with ophiolitic or Alaskan–Uralian-type complexes (e.g. Cabri, Reference Cabri 2002, and references therein).However, in the Sisim placer zone, in eastern Sayans, Russia, Barkov et al.

A contribution on the platinum-group mineralogy of the ...

The platinum-group chemistry and mineralogy of the UG-2 chromitite layer of the Bushveld Complex Economic Geology The relative importance of sulfides, spinels, and platinoid minerals as carriers of Pt, Pd, Ir, and Au in the Merensky Reef at …

Platinum-group minerals from the Malaya Kamenushka …

Platinum-group element sulfides are also found as inclusions in the Pt–Fe alloy. Minerals of the laurite–erlichmanite solid solution series are the most common ( Fig. 4c ). Laurite was found as individual crystals with complex faceting and a predominance of straight faces ( Fig. 4c ), with sizes up to 70 μm.

Changes in sulfides and platinum-group minerals with the ...

This idea has been investigated by documenting the change in silicate, sulfide, and platinum-group mineralogy and texture in samples from the deposit ranging from fresh gabbronorite to extensively altered chlorite–actinolite schist. In addition, whole-rock analysis combined with laser ablation analysis of the sulfides was used to determine ...

Regional trends in the platinum-group mineralogy of the ...

The mineralogy of reef disturbances such as potholes is discussed. The mode of occurrence of the platinum-group minerals varies between base metal sulfide, silicate, and chromite associations and the size of platinum-group minerals in the various reefs is given.

The Geological Occurrence, Mineralogy, and Processing by ...

Russia and South Africa are the world's leading producers of platinum group elements (PGEs). This places them in a unique position regarding the supply of these two key industrial commodities. The purpose of this paper is to provide a comparative high-level overview of aspects of the geological occurrence, mineralogy, and processing by flotation of the …

[pdf] Download Mineralogy And Geochemistry Of The …

Download Mineralogy And Geochemistry Of The Platinum Group Elements Pge Rare Earth Elements Ree And Scandium In Nickel Laterites Book PDF. Download full Mineralogy And Geochemistry Of The Platinum Group Elements Pge Rare Earth Elements Ree And Scandium In Nickel Laterites books PDF, EPUB, Tuebl, Textbook, Mobi or read online Mineralogy And …

The platinum-group chemistry and mineralogy of the UG …

Individual platinum-group elements, as well as Au, Cu, and Ni, were determined in borehole cores of the UG-2 chromitite layer from different localities in the Bushveld Complex. The average noble metal content of the layer is about 7 ppm; Pt is most abundant, followed by …

Platinum-group mineralogy of the Giant Mascot Ni-Cu …

Platinum-group mineralogy of the Giant Mascot Ni-Cu-PGE deposit, Hope, B.C. Matthew J. Manor1, a, James S. Scoates1, Graham T. Nixon2, and Doreen E. Ames3 1 Pacifi c Centre for Isotopic and Geochemical Research, Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC, V6T 1Z4 2 British Columbia …

A Review of the Behaviour of Platinum Group Elements ...

deposit of platinum group elements (PGEs) is that associated with magmatic base metal sulfide minerals in layered mafic or ultramafic igneous intrusions.The common association of PGEs with sulfide minerals is a result of processes of magmatic and sulfide liquid segregation and fractionation. The mineralogical

(PDF) Platinum-group mineralogy of the Giant Mascot Ni …

The Giant Mascot Ni-Cu-PGE deposit is British Columbia's only past-producing nickel mine (1958-1974), having yielded ~ 4.2 Mt of ore grading 0.77% Ni and 0.34% Cu with minor Co, Ag and Au.

Review of platinum-group mineralogy: Compositions and ...

There are 96 approved PG (platinum group) — mineral species and more than 500 unidentified PG-phases on record. In addition, over 20 non-PG-minerals contain varying concentrations of one or more of the six platinum group elements.The PG-minerals commonly have cubic symmetry and density values mostly between 10–11 g/cm3 but within the range 5–22 g/cm3. Furthermore, …

(PDF) THE MINERALOGY OF THE PLATINUM- GROUP …

Abstract and Figures. This review was undertaken as a first step in a systematic study of the platinum group minerals from Canadian deposits. lt was …

Geochemistry and mineralogy of Platinum-group elements …

Naldrett AJ (1989) Platinum-group element deposits. In: Cabri LJ (ed) Platinum-group elements: mineralogy, geology, recovery. CIM Special Volume 23, Ottawa, pp 197–231. Google Scholar Naldrett AJ, Barnes SJ (1986) The fractionation of the platinum-group elements with special reference to the composition of sulphide ores.