Results 1 to 10 of about 199 (165)

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, R.S. Palamarchuk, V.M. Kalugin, A.V. Kozlov, D.A. Varlamov   +4 more
doaj   +1 more source

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, Airiyants Evgeniya, Belyanin Dmytriy, Zhmodik Sergey   +3 more
doaj   +1 more source

Post-magmatic processes recorded in bimodal chromitites of the East Chalkidiki meta-ultramafic bodies, Gomati and Nea Roda, Northern Greece

Frontiers in Earth Science, 2022
The meta-ultramafic bodies of Gomati and Nea Roda are situated in the Serbomacedonian Massif. They demonstrate bimodal character in terms of chromitite chemistry with both Cr- and Al-rich chromitites outcropping in proximity, with no obvious tectonic ...
Alkiviadis Sideridis, Basilios Tsikouras, Pavlos Tsitsanis, Petros Koutsovitis, Federica Zaccarini, Christoph Hauzenberger, Harilaos Tsikos, Konstantin Hatzipanagiotou   +7 more
doaj   +1 more source

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, M. Junge, S. Goldmann, H. Wotruba   +3 more
doaj   +1 more source

Platinum-group elements (PGE) in the New Afton alkalic Cu-Au porphyry deposit, Canadian Cordillera, II: PGE distribution and models for the hydrothermal coprecipitation of Co-Ni-Pd-Pt in pyrite

Frontiers in Earth Science, 2023
The first part of this article can be found here: 10.3389/feart.2023.819129 (DOI). Occurrences of significant concentrations of platinum-group elements (PGE) in porphyry deposits have seen limited attention and the geochemical controls on their ...
Samuel J. Robb, Brandon M. Boucher, James E. Mungall, Jacob J. Hanley   +3 more
doaj   +1 more source

PLATINUM METAL MINERALIZATION OF THE SOUTH URALS MAGMATIC COMPLEXES: GEOLOGICAL AND GEODYNAMIC CHARACTERISTICS OF FORMATIONS, PROBLEMS OF THEIR GENESIS, AND PROSPECTS

Геодинамика и тектонофизика, 2021
In the South Urals, we have identified and investigated two platinum-bearing formations – ophiolite chromitebearing complexes, and the Khudolaz differentiated mafic-ultramafic complex with sulfide Cu-Ni mineralization.
I. R. Rakhimov, D. E. Saveliev, A. V. Vishnevskiy   +2 more
doaj   +1 more source

Behavior of Platinum-Group Elements during Hydrous Metamorphism: Constraints from Awaruite (Ni3Fe) Mineralization [PDF]

Lithosphere, 2023
Natural Fe-Ni alloys are common in meteorites and, presumably, the Earth’s core, where they host significant platinum-group elements (PGE). However, little is known on PGE concentrations in hydrothermal or metamorphic Fe-Ni alloys (i.e., awaruite Ni3Fe ...
Anton Kutyrev, Vadim S. Kamenetsky, Alkiviadis Kontonikas-Charos, Dmitry P. Savelyev, Tamara Yu. Yakich, Ivan A. Belousov, Elena I. Sandimirova, Svetlana V. Moskaleva   +7 more
doaj   +1 more source

Application of SEM and EDS to Analyze the Occurrence of Platinum Group Elements and Characteristics of Platinum Group Minerals in the Pt-Pd Deposit from Huili, Sichuan Province, China

Yankuang ceshi, 2018
The Huili Pt-Pd deposit in Sichuan Province is an independent platinum element ore deposit. In some ore sections, the contents of Pt and Pd have reached industrial grade.
ZHOU Jiao-hua, XU Jin-sha, NIU Rui, ZHOU Jing, LAI Jia-yi   +4 more
doaj   +1 more source

Structural and dynamical properties of sperrylite (PtAs2): a molecular dynamics study [PDF]

MATEC Web of Conferences, 2023
There is a demand for platinum group minerals (PGMs) due to the increase in various applications such as electronics, industrial and medical. Sperrylite (PtAs2) is one of the major PGMs, however its recovery by flotation has been reported to be poor. The
Ntobeng Segoarihle, Mehlape Mofuti, Mkhonto Peace, Ngoepe Phuti   +3 more
doaj   +1 more source

Gibbs Free Energy of Formation for Selected Platinum Group Minerals (PGM)

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, Maria Economou-Eliopoulos   +1 more
doaj   +1 more source