Concentrations of the platinum-group elements have been determined in several suites of southern African flood-type basalts and mid-ocean ridge basalt (MORB), covering some 3 Ga of geologic evolution and including the Etendeka, Karoo, Soutpansberg, Machadodorp, Hekpoort, Ventersdorp and Dominion magmas. The magmas cover a compositional range from 3.7 to 18.7% MgO, 26–720 ppm Ni, 16–250 ppm Cu, and <1–255 ppb total platinum-group elements (PGE). The younger basalts (Etendeka, Karoo) tend to be depleted in PGE relative to Cu, while most of the older basalts (Hekpoort, Machadodorp, Ventersdorp, Dominion) show no PGE depletion relative to Cu. Further, the younger basalts tend to have lower average Pt/Pd ratios than the older basalts, and the MO...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...
Concentrations of the platinum-group elements have been determined in several suites of southern Afr...
Concentrations of the platinum-group elements have been determined in several suites of southern Afr...
We have analysed 18 samples of komatiite from five consecutive lava flows of the Komati Formation at...
We have analysed 18 samples of komatiite from five consecutive lava flows of the Komati Formation at...
The Mount Ayliff Complex of the Eastern Cape province of South Africa is a layered intrusion of some...
The Mount Ayliff Complex of the Eastern Cape province of South Africa is a layered intrusion of some...
The Bushveld Complex contains large ore deposits of platinum-group elements (PGE), V, and Cr. Unders...
The Bushveld Complex contains large ore deposits of platinum-group elements (PGE), V, and Cr. Unders...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...
Concentrations of the platinum-group elements have been determined in several suites of southern Afr...
Concentrations of the platinum-group elements have been determined in several suites of southern Afr...
We have analysed 18 samples of komatiite from five consecutive lava flows of the Komati Formation at...
We have analysed 18 samples of komatiite from five consecutive lava flows of the Komati Formation at...
The Mount Ayliff Complex of the Eastern Cape province of South Africa is a layered intrusion of some...
The Mount Ayliff Complex of the Eastern Cape province of South Africa is a layered intrusion of some...
The Bushveld Complex contains large ore deposits of platinum-group elements (PGE), V, and Cr. Unders...
The Bushveld Complex contains large ore deposits of platinum-group elements (PGE), V, and Cr. Unders...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...
The platinum-group element (PGE) contents of the upper portions of the Bushveld Complex were investi...