The concentrations of platinumgroup elements (PGE), Co, Re, Au and Ag have been determined in the basemetal sulphide (BMS) of a section of the Merensky Reef. In addition we performed detailed image analysis of the platinumgroup minerals (PGM). The aims of the study were to establish: (1) whether the BMS are the principal host of these elements; (2) whether .

Genesis of platinumgroup minerals in the Las Aguilas rocks 87. The Sierras Pampeanas of the San Luis area (Figs. 1, 2) consist of a crystalline basement of Upper Precambrian to LowerMiddle Paleozoic metamorphic rocks (gneisses, schists, phyllites, amphibolites, migmatites, and granulites), granites, pegmatites, as well as mafic and ultramafic rocks. There are several .

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PlatinumGroup Elements in Sulphide Minerals, PlatinumGroup Minerals, and WholeRocks of the Merensky Reef (Bushveld Complex, South Africa): Impliions for the Formation of the Reef Belinda Godel, Belinda Godel * 1 Universite du quebec a chicoutimi, Sciences de la terre, chicoutimi, Qc, Canada, G7H 2B1 *Corresponding author. Telephone: +1 418 2502. Fax: +1 418 . .

 · We report platinum group element geochemistry along with wholerock systematics of the mafic sills from the Vempalle Formation to understand their sulphur saturation history, source characteristics, and tectonic setting. These sills are medium to finegrained dolerites with plagioclase and pyroxenes as essential minerals exhibiting subophitic to intergranular texture. Geochemically, they .

Platinumgroup elements in sulphide minerals, platinumgroup minerals and the whole rock of the JM Reef (Stillwater Complex): Impliion on the formation .

Impala Platinum (Implats), headquartered in Johannesburg, South Africa, is one of the world's foremost producers of platinum and associated platinum group metals (PGMs). Implats is structured around five main operations that are loed on the Bushveld Complex in South Africa and the Great Dyke in Zimbabwe, the two most significant PGMbearing ore bodies in the world. With its nearly ...

 · Platinum is both malleable and ductile and can be extracted from ore that contains platinum group elements (PGM). (read more) These elements include iridium, osmium, palladium, platinum, rhodium ...

Platinum group elements (PGE: Ru, Rh, Pd, Os, Ir, Pt) are highly siderophile elements (HSE) and their abundances in terrestrial rocks are low (~ ppb). This group of elements is important for understanding of geochemical processes, essential in mineral exploration, environmental studies, and identifiion of impact craters. Determination of PGE is very challenging and a reliable .

The platinum group metals, or PGMs as they are sometimes referred to, are a collective of metals grouped together in the middle of the periodic table. The six elements normally included in the group are all transition metals with some similar chemical and physical properties. Generally, this group is assumed to include platinum, palladium, rhodium, iridium, ruthenium and osmium; all have ...

and rock types of the Stillwater Complex, ~ont 12 III . Platinum, Palladium, and Rhodium Analyses of Ultramafic and Mafic Rocks from the Stillwater Complex, Montana By Norman J Page, leonard B. Riley, and Joseph Haffty ABSTRACT An a 1 y s e s by a combination fireassa~solutionoptical· emission spectrographic method of 137 rocks from the Stillwater Complex, Mont., indie that platinum ...

In most rocks, platinumgroup minerals are very small, ranging in size from less than a micron to a few hundred microns in diameter. Geologists can spend a lifetime working on rocks enriched in PGE and never see a platinum group mineral in a hand specimen, so the presence of PGE must be confirmed by laboratory analysis. Most of the world's PGE are concentrated in magmatic ore deposits ...

platinumgroup elements characteristic of subcontinental ultramafic rocks from sudetes (sw poland): a petrogenetic . Thomas Meisel The Niedźwiedź lherzolite has extremely low PGE and Re concentrations () relatively to the composition of the Earth's primitive mantle ─ PM (McDonough and Sun, 1995), showing positively slopped abundance pattern.

 · In most rocks, platinumgroup minerals range in size from less than a micron to a few hundred microns in diameter, so the presence of PGEs must be confirmed by laboratory analysis. Over 100 minerals contain PGEs as an essential component. PGM extraction and refinement is time consuming and expensive. According to the International Platinum Group .

Platinum Group Elements in Selected Precambrian Rocks of the Western Upper Penin sula, Michigan Theodore J. Bornhorst Initially, a review of the literature relevant to anomalous PGE and David A. Baxter Department of Geological Engineering, Geology and Geophysics, Michigan Technological University, Houghton, Michigan review, published geologic maps and literature on the Precambrian .

A drychlorination procedure has been developed for use in the determination of low concentrations of platinum group elements (PGE) and Au in rock pulps. The PGE and Au, present as native metals, natural alloys and as PGE(or Au) bearing sulfide group .

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