The role of magma mixing in the genesis of PGE mineralization in the Bushveld complex: Thermodynamic calculations and new interpretations

Economic Geology

Volumn 96, Issue 3, 2001, Pages 653-662

  Li, C ^a   Maier, W D ^a   De Waal, S A ^a  

^a INDIANA UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

FOOTWALL SEQUENCES;

BIOGEOCHEMICAL CYCLING; CHROMITE; CRYSTALLIZATION; ELEMENT; GEOLOGY; MAGMA; MINERALIZATION; MODEL; PLATINUM; SOIL AND SOIL RELATED PHENOMENA; SOLUBILITY; SULFIDE; SULFUR;

CHROMITE; CRYSTALLIZATION; PLATINUM; SILICATES; SULFUR; THERMODYNAMICS;

GEOLOGY;

MAGMA CHEMISTRY; METALLOGENESIS; MIXING; PLATINUM GROUP ELEMENTS; THERMODYNAMICS;

SOUTH AFRICA;

EID: 0035326663     PISSN: 03610128     EISSN: None     Source Type: Journal    
DOI: 10.2113/gsecongeo.96.3.653     Document Type: Article

References (35)

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3. The influence of silicate:Sulfide ratios on the geochemistry of magmatic sulfides
4. A model for the origin of the platinum sulfide horizons in the bushveld and stillwater complexes
5. Sulfur speciation in hydrous experimental glasses of varying oxidation state: Results from measured wavelength shifts of sulfur x-rays
6. Platinum-group element mineralization in the Bushveld complex-a critical reassessment of geological models
7. Oxidation states of mid-ocean ridge basalt glasses
8. The platinum-group element and gold contents of the marginal rocks and sills of the Bushveld complex
9. The Bushveld complex
10. Some geochemical constraints upon models for the crystallization of the upper critical-main zone interval, Northwestern Bushveld complex
11. The geological setting of the platinoid and base metal sulfide mineralization in the Platreef of the Bushveld complex in Drenthe, North of Potgietersrus
12. Chemical mass transfer in magmatic processes. IV. A revised and internally consistent thermodynamic model for the interpolation and extrapolation of liquid-solid equilibria in magmatic systems at elevated temperatures and pressures
13. Field relationships and strontium isotope systematics of the marginal rocks of the Eastern Bushveld complex
14. The distribution of chalcophile and platinum-group elements in the UG-2 chromitite layer of the Bushveld complex
15. Trace and platinum-group element geochemistry and the development of the Merensky unit of the Western Bushveld complex
16. 2 system and their application in geology
17. Concentrations of rare earth elements in silicate rocks of the lower, critical and main zones of the Bushveld complex
18. Platinum-group elements in the silicate rocks of the lower, critical and main zones at union section, Western Bushveld complex
19. Sulfur solubility and magmatic sulfides in submarine basalt glass
20. The relative effects of pressure, temperature and oxygen fugacity on the solubility of sulfide in mafic magmas
21. Exploration for platinum
22. Stratiform PGE deposits in layered intrusions
23. Association of platinum-group elements with chromitite in layered intrusions and ophiolite complexes
24. Spinel non-stoichiometry as the explanation for Ni-, Cu-,and PGE-enriched sulfides in chromites
25. The upper critical zone of the Bushveld complex and the origin of Merensky-type ores
26. Sulfur speciation, oxidation state, and sulfur concentration in backarc magmas
27. Platinum-group element mineralization in the critical zone of the Western Bushveld complex: I. Sulfide-poor chromitites below the UG-2
28. Solubility of sulfur in an ultramafic melt and the relevance of the system Fe-S-O
29. The fractionation of platinum-group elements in magmatic systems with the suggestion of a novel causal mechanism
30. The distribution and main geologic features of the discordant bodies of iron-rich ultramafic pegmatite in the Bushveld complex
31. Contrasting platinum-group element concentration patterns in cumulates of the Bushveld complex
32. Sulfur in basaltic magmas
33. Distribution and controls of platinum group element and base metal mineralization in the Barwendale subchamber of the Great Dyke, Zimbabwe