PGE-Rich Ni-Cu Sulfide Mineralization in the Flin Flon Greenstone Belt, Manitoba, Canada: Implications for Hydrothermal Remobilization of Platinum Group Elements in Basic-Ultrabasic Sequences

2010 ◽  
Vol 105 (8) ◽  
pp. 1469-1490 ◽  
Author(s):  
N. E. Bursztyn ◽  
G. R. Olivo
Keyword(s):  
Greenstone Belt ◽  
Platinum Group Elements ◽  
Sulfide Mineralization ◽  
Flin Flon ◽  
Platinum Group ◽  
Hydrothermal Remobilization

scholarly journals Hydrothermal remobilization platinum group elements and their secondary minerals in chromitite deposits of the Eastern Sayan ophiolites (Russia)

2019 ◽  
Vol 98 ◽  
pp. 08014
Author(s):  
Ol’ga Kiseleva ◽  
Evgeniya Airiyants ◽  
Dmytriy Belyanin ◽  
Sergey Zhmodik
Keyword(s):  
Fluid Phase ◽  
Platinum Group Elements ◽  
Base Metals ◽  
Crustal Fluid ◽  
Platinum Group Minerals ◽  
Mantle Peridotites ◽  
Mantle Fluids ◽  
Platinum Group ◽  
Hydrothermal Remobilization ◽  
Eastern Sayan

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 minerals (PGMs) formed because of PGE remobilization under the action of mantle and crustal fluid on the rocks. The formation of the secondary PGMs can occur in several stages. Under the effect on the chromitites of reduced mantle fluids, native PGE alloys were formed during early serpentinization. Under dehydrating subducted slab fluid phase was caused in serpentinization mantle peridotites and have been dissolved magmatic high-temperature platinum group minerals. During the obduction of ophiolites, an inversion from reducing to oxidizing condition took place with the formation of nickel arsenides and As, Sb – bearing PGMs.

A reconnaissance study of platinum group elements (PGE) contents from sulfide mineralization in pyroxenites in Faryab ophiolite of Iran

2011 ◽  
Vol 5 (5) ◽  
pp. 1021-1029 ◽  
Author(s):  
Kaveh Pazand ◽  
Firuz Aliniya ◽  
Yousef Ghanbari ◽  
Hossein Hassani ◽  
Nasrin Aghavali
Keyword(s):  
Platinum Group Elements ◽  
Sulfide Mineralization ◽  
Platinum Group

Phases in the Ni–Sb–As system which occur in the Bon Accord oxide body, Barberton greenstone belt, South Africa

2016 ◽  
Vol 80 (1) ◽  
pp. 187-198 ◽  
Author(s):  
M. Tredoux ◽  
F. Zaccarini ◽  
G. Garuti ◽  
D. E. Miller
Keyword(s):  
South Africa ◽  
Electron Microprobe ◽  
Greenstone Belt ◽  
Microprobe Analysis ◽  
Electron Microprobe Analysis ◽  
Platinum Group Elements ◽  
High Magnification ◽  
Barberton Greenstone Belt ◽  
Grain Sizes ◽  
Platinum Group

AbstractAn oxide-silicate occurrence, containing >40 wt.% NiO whole rock and showing enrichment in the platinum-group elements and antimony, was investigated at high magnification. Many phases with grain sizes generally <100 μm were observed; electron microprobe analysis indicated that, although some of these are known minerals in Ni–Sb–As space (such as breithauptite and orcelite), most of them cluster around the following compositions: Ni3Sb, Ni3(Sb,As), Ni3As, Ni5(Sb,As)2, Ni7(Sb,As)3 and Ni11(Sb,As)8. Such phases have been observed in synthetic systems, but up to now not in nature. The data reported here therefore probably represent the compositions of new minerals.

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