TY - JOUR
T1 - Pt, Pd and other trace elements in sulfides of the main sulfide zone, Great Dyke, Zimbabwe: A reconnaissance study
AU - Mcmahon, Greg
AU - Oberthur, T
AU - Cabri, L J
AU - Weisner, T W
AU - McMahon, G
AU - Muller, P
N1 - Times Cited: 40 3
PY - 1997
Y1 - 1997
N2 - Three ore samples from the Main Sulfide Zone (MSZ) of the Great Dyke, in Zimbabwe, were investigated by a combination of mineralogical and micro-analytical techniques including optical microscopy, electron, proton, and ion microprobes. The sulfide mineralogy mainly comprises pyrrhotite + pentlandite + chalcopyrite +/- pyrite. Other opaque minerals present are rutile, ilmenite, chromite, loveringite, and rare platinum-group minerals (PGM), such as sperrylite, cooperite, moncheite, and merenskyite. The micro-analytical methods employed demonstrate the presence of variable concentrations of the platinum-group elements (PGE) in pyrrhotite, pentlandite, chalcopyrite, and pyrite. The following maximum values were obtained by PIXE analysis: 64 ppmw Pt and 35 ppmw Ru in pyrrhotite, 300 ppmw Pd and 182 ppmw Ph in pentlandite, Pd, Ru and Ph below MDL in chalcopyrite, and 233 ppmw Pt and 40 ppmw Ru in pyrite. SIMS analyses confirmed the presence of Pt in pentlandite (range
AB - Three ore samples from the Main Sulfide Zone (MSZ) of the Great Dyke, in Zimbabwe, were investigated by a combination of mineralogical and micro-analytical techniques including optical microscopy, electron, proton, and ion microprobes. The sulfide mineralogy mainly comprises pyrrhotite + pentlandite + chalcopyrite +/- pyrite. Other opaque minerals present are rutile, ilmenite, chromite, loveringite, and rare platinum-group minerals (PGM), such as sperrylite, cooperite, moncheite, and merenskyite. The micro-analytical methods employed demonstrate the presence of variable concentrations of the platinum-group elements (PGE) in pyrrhotite, pentlandite, chalcopyrite, and pyrite. The following maximum values were obtained by PIXE analysis: 64 ppmw Pt and 35 ppmw Ru in pyrrhotite, 300 ppmw Pd and 182 ppmw Ph in pentlandite, Pd, Ru and Ph below MDL in chalcopyrite, and 233 ppmw Pt and 40 ppmw Ru in pyrite. SIMS analyses confirmed the presence of Pt in pentlandite (range
M3 - Article
SN - 0008-4476
VL - 35
SP - 597
EP - 609
JO - Canadian Mineralogist
JF - Canadian Mineralogist
ER -