Results 21 to 30 of about 5,495 (300)
Open System Re-Os Isotope Behavior in Platinum-Group Minerals during Laterization? [PDF]
, 2021 In this short communication, we present preliminary data on the Re-Os isotopic systematics of platinum-group minerals (PGM) recovered from different horizons in the Falcondo Ni-laterite in the Dominican Republic.
Aiglsperger, Thomas, +13 more
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«Platinum» from the collection of A.F. Keller in the State geological museum RAS
Известия высших учебных заведений: Геология и разведка, 2017 The microprobe tests of the supposed platinum from the collection of F.A. Keller at the State geological museum of Russian Academy of Sciences have been carried out for the first time.
N. I. Braynchaninova +2 more
doaj +1 more source
Rare minerals of noble metals in the collection of the Mining Museum: new data
Записки Горного института, 2022 Modern analytical methods (optical and electron microscopy, X-ray microanalysis) were used to study the unique samples of sulfide ores from the Norilsk ore field from the Mining Museum collections of Saint Petersburg Mining University.
Dmitry A. Petrov +2 more
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Open Geosciences, 2015 The Kondapalli Layered Complex (KLC) is a dismembered mafic-ultramafic layered intrusion, mainly composed of gabbroic and anorthositic rocks with subordinate ultramafics and chromitite.
Meshram Tushar M. +5 more
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PLATINUM-GROUP MINERALS IN PODIFORM CHROMITITES OF THE OMAN OPHIOLITE [PDF]
The Canadian Mineralogist, 2003 Chromitite lenses rich in the platinum-group elements (PGE) have recently been discovered in the deeper part of the mantle section of the northern part of the Oman ophiolite. In terms of stratigraphic level, there are two types of chromitite: Moho transition zone (MTZ) and mantle types.
A. H. Ahmed, S. Arai
openaire +1 more source
Platinum-Group Minerals in the Placer of the Kitoy River, East Sayan, Russia [PDF]
, 2021 The platinum-group minerals (PGM) in placer deposits provide important information on the types of their primary source rocks and ores and formation and alteration conditions. The article shows for the first time the results of a study of placer platinum
Dmitriy K. Belyanin +4 more
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Platinum-group minerals and their host chromitites in Macedonian ophiolites [PDF]
European Journal of Mineralogy, 2017 Several ophiolite bodies that have been a significant source of chromium ore are located in the Vardar Zone of Macedonia. Three relatively small (maximum 15 × 4 km) bodies have been studied in detail. In the Radusa and Lojane complexes, the mantle series consisting of harzburgite and rare dunite are well preserved, whereas minor pyroxenite and gabbro ...
Augé, Thierry +3 more
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SECONDARY PLATINUM-GROUP MINERALS FROM A PLACER OF THE BOLSHOY SAP RIVER (CENTRAL URALS) [PDF]
МинералогияThe object of the present study includes grains of platinum-group minerals (PGMs) from a concentrate, which was obtained during mining of a technogenic gold placer near the Pervomaisky duniteharzburgite massif (Central Urals).
V.V. Murzin, K.N. Malitch, A.Yu. Kisin
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MICRO-PIXE ANALYSIS OF PLATINUM-GROUP MINERALS FROM PLACER DEPOSITS [PDF]
, 1992 Micro-PIXE and EPMA analyses of platinum-group minerals from placer deposits are being used in an attempt to determine whether the PGM are derived from ultramafic rocks by weathering, or formed directly in the placer by chemical accretion.
Criddle, Alan J. +11 more
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Записки Горного института, 2022 Materials on geochemistry and ore Fe-Ti-Cr mineralization of rocks composing layered (stratified) bodies of the western slope of the Southern Urals are presented. A detailed analysis showed similarity in the redistribution of REE, noble metals, and Fe-Ti-
Sergey G. Kovalev, Sergey S. Kovalev
doaj +1 more source