scholarly journals Low-blank digestion of geological samples for platinum-group element analysis using a modified Carius Tube design

1998 ◽  
Vol 361 (2) ◽  
pp. 217-219 ◽  
Author(s):  
M. Rehkämper ◽  
Alex N. Halliday ◽  
Roy F. Wentz
Keyword(s):  
Platinum Group Element ◽  
Group Element ◽  
Geological Samples ◽  
Element Analysis ◽  
Platinum Group

Development of digital gamma-activation autoradiography for the determination of platinum group element inclusions in geological samples

2007 ◽  
Vol 271 (3) ◽  
pp. 671-678 ◽  
Author(s):  
V. P. Kolotov ◽  
A. Yu. Andriyanov ◽  
S. N. Shilobreeva ◽  
V. I. Korobkov ◽  
N. N. Dogadkin ◽  
...  
Keyword(s):  
Platinum Group Element ◽  
Group Element ◽  
Geological Samples ◽  
Gamma Activation ◽  
Platinum Group ◽  
Activation Autoradiography

Distribution of noble metals in magmatic sulfide occurrences in the Montagnais Sill Complex, Labrador Trough, Canada

2021 ◽  
Vol 59 (6) ◽  
pp. 1599-1626
Author(s):  
William D. Smith ◽  
Wolfgang D. Maier ◽  
Ian Bliss
Keyword(s):  
Inductively Coupled Plasma ◽  
Precious Metal ◽  
Platinum Group Element ◽  
Noble Metals ◽  
Trace Element Analysis ◽  
Group Element ◽  
Element Analysis ◽  
Sulfide Melt ◽  
Magmatic Sulfide ◽  
Platinum Group

ABSTRACT We have characterized the distribution of noble metals among six styles of magmatic sulfide mineralization in the Montagnais Sill Complex of the Labrador Trough in northern Québec using optical and electron microscopy combined with laser ablation-inductively coupled plasma-mass spectrometry trace element analysis of sulfides. The principal sulfide minerals include pyrrhotite, chalcopyrite, and pentlandite with accessory sphalerite and sulfarsenides. In addition, cubanite, troilite, and mackinawite are present in ultramafic-hosted assemblages. The precious metal mineral assemblages are dominated by tellurides, Ag-rich gold, and sperrylite which generally occur at the margins of sulfides. Few iridium-group platinum group element- and Rh-bearing grains were identified and mass-balance calculations show that these elements are generally hosted in pyrrhotite and pentlandite. Virtually all Pt and Au are hosted in precious metal grains, whereas Pd is distributed between precious metal grains and pentlandite. Where present, sulfarsenides are a key host of iridium-group platinum group element, Rh, Pd, Te, and Au. The presence of troilite, cubanite, and mackinawite and the absence of pentlandite exsolution lamellae in the ultramafic-hosted sulfides indicates an initial sulfide melt with a high metal/S ratio. Sulfarsenides present among globular sulfide assemblages derive from an immiscible As-rich melt that exsolved from the sulfide melt in response to the assimilation of the As-bearing floor rocks. In this study, the composition of sulfides is consistent with those derived from Ni-Cu-dominated deposits and not platinum group element-dominated deposits.

PLATINUM GROUP ELEMENT (PGE) SYSTEMATICS OF ARC SULFIDES: A CASE STUDY FROM CUMULATES OF THE CHILAS COMPLEX, KOHISTAN ARC, PAKISTAN

2016 ◽  
Author(s):  
Ijaz Ahmad ◽  
◽  
Jeremy P. Richards ◽  
Jingao Liu ◽  
D. Graham Pearson ◽  
...  
Keyword(s):  
Platinum Group Element ◽  
Group Element ◽  
Platinum Group

scholarly journals The komatiite-mantle platinum-group element paradox

2021 ◽  
Author(s):  
Pedro Waterton ◽  
James Mungall ◽  
D. Graham Pearson
Keyword(s):  
Platinum Group Element ◽  
Group Element ◽  
Platinum Group
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