Distribution of platinum-group minerals in ophiolitic chromitites
Transactions of the Institution of Mining and Metallurgy Section B-Applied Earth Science, 2009 This paper reviews the distribution of platinum-group minerals in ophiolitic chromitites. Our data and literature data, obtained by in-situ investigation of polished sections and techniques of mechanical separation [hydroseparation (HS), or combining ...
JOSÉ Maria Gonzalez-Jimenez +2 more
exaly +3 more sources
Platinum Group Minerals in Eastern Brazil GEOLOGY AND OCCURRENCES IN CHROMITITE AND PLACERS
Platinum Metals Review, 2005 Brazil does not have working platinum mines, nor even large reserves of the platinum metals, but there is platinum in Brazil. In this paper, four massifs (mafic/ultramafic complexes) in eastern Brazil, in the states of Minas Gerais and Ceara, where ...
Angeli, Nelson
core +3 more sources
Hydrothermal remobilization platinum group elements and their secondary minerals in chromitite deposits of the Eastern Sayan ophiolites (Russia) [PDF]
E3S Web of Conferences, 2019 Serpentinization is an important post-magmatic process in spreading and subducted zones. This process is the cause of the remobilization and redistribution of highly mobile elements, platinum group elements (PGE) and base metals. Secondary platinum group
Kiseleva Ol’ga +3 more
doaj +2 more sources
Gibbs Free Energy of Formation for Selected Platinum Group Minerals (PGM) [PDF]
Geosciences, 2016 Thermodynamic data for platinum group (Os, Ir, Ru, Rh, Pd and Pt) minerals are very limited. The present study is focused on the calculation of the Gibbs free energy of formation (ΔfG°) for selected PGM occurring in layered intrusions and ophiolite ...
Spiros Olivotos +1 more
doaj +3 more sources
Mineralogy and mineral chemistry of detrital platinum-group minerals and gold particles from the Elbe, Germany [PDF]
European Journal of Mineralogy, 2023 In heavy mineral concentrates of the Elbe, gold and platinum-group minerals (PGMs) are observed. Two fractions (> 63 and < 63 µm) of the concentrate are analyzed by reflected-light microscopy, scanning electron microscopy with automated mineralogy ...
M. Junge +3 more
doaj +2 more sources
Unraveling the Cretaceous-Paleogene boundary event across the Gulf of Mexico-High-resolution Rayon reef section, Valles-San Luis Potosi platform, Mexico. [PDF]
PLoS ONEThe Cretaceous/Paleogene boundary, marked by the Chicxulub impact ejecta layer has a global distribution, with distal, intermediate and proximal boundary sections of distinct mineralogy, geochemistry and stratigraphy.
Roberto Bartali +4 more
doaj +2 more sources
Abiotic polycyclic aromatic hydrocarbons originating from the sub-oceanic mantle [PDF]
Scientific ReportsExperimental studies have demonstrated that petroleum may form from abiotic organic compounds synthesised in the Earth’s upper mantle. However, the most direct evidence of mantle-derived organics, as obtained from whole-rock analyses, indicates ambiguous
Itaru Mitsukawa +13 more
doaj +2 more sources
An electrochemical investigation of platinum group minerals
, 2015 The Bushveld complex is the largest ore body in the world hosting platinum group elements (PGEs). It is a stratified orebody with three major reefs namely, the Merensky reef, UG2 reef and the Platreef.
Tadie, Margreth
core +2 more sources
Petrogenesis of the Platinum-Group Minerals [PDF]
Reviews in Mineralogy and Geochemistry, 2015 The platinum-group minerals (PGM) are a diverse group of minerals that concentrate the platinum-group elements (PGE; Os, Ir, Ru, Rh, Pt, and Pd). At the time of writing, the International Mineralogical Association database includes 135 named discrete PGM phases.
O’Driscoll, Brian +1 more
openaire +5 more sources
CHROMITE-PLATINUM MINERALIZATION OF CLINOPYROXENITE-DUNITE MASSIF ZHELTAYA SOPKA, NORTH URAL [PDF]
Минералогия, 2020 The paper presents the new data on platinum group minerals (PGM) and chromite from the Zheltaya Sopka massif, North Urals. Few chromite bodies along with specific composition of chromite indicate weak ore-forming processes developed in this massif ...
I.A. Kuzmin +4 more
doaj +1 more source