The geochemistry of the platinum-group elements in Brazilian and southern African kimberlites

Geochimica et Cosmochimica Acta

Volumn 59, Issue 14, 1995, Pages 2883-2903

  McDonald, I ^a   de Wit, M J ^a   Smith, C B ^b   Bizzi, L A ^a,c   Viljoen, K S ^b,d  

^a UNIVERSITY OF CAPE TOWN   (South Africa)

^b UNIVERSITY OF THE WITWATERSRAND   (South Africa)

^c Sopemi Pesq Exploracao de Minérios SIA Trecho 2 1591 Brasilia DF Brazil ^*

^d Anglo American Research Laboratories   (South Africa)

Author keywords

[No Author keywords available]

Indexed keywords

ALKALI IGNEOUS ROCK; GEOCHEMISTRY; GOLD; KIMBERLITE; PGE;

BRAZIL; SOUTH AFRICA;

EID: 0029545968     PISSN: 00167037     EISSN: None     Source Type: Journal    
DOI: 10.1016/0016-7037(95)00183-2     Document Type: Article

References (88)

1. A summary of radiometric dating methods applicable to kimberlites and related rocks
2. O craton do São Francisco
3. Abundances of the elements: meteoritic and solar
4. Zircon ion microprobe studies bearing on the age and evolution of the Witwatersrand triad
5. The origin of the fractionation of platinum-group elements in terrestrial magmas
6. The use of mantle normalization and metal ratios in discriminating between the effects of partial melting, crystal fractionation and sulphide segregation on platinum-group elements, gold, nickel and copper: Examples from Norway
7. Mesozoic alkaline volcanism and mantle evolution of the southwestern São Francisco craton, Brazil
8. Geology and source character of mesozoic kimberlites and alkalic rocks in western Minas Gerais, Brazil (abstr.)
9. Mesozoic kimberlites and related alkalic rocks in the south-western São Francisco craton, Brazil: a case for local mantle reservoirs and their interaction
10. Isotope characteristics of the lithospheric mantle underlying the southwestern São Francisco craton margin, Brazil
11. Compositional distinction between oceanic and cratonic lithosphere
12. Low calcium garnet harzburgites from Southern Africa; their relations to craton structure and diamond crystallization
13. Noble metal abundances in komatiite suites from Alexo, Ontario and Gorgona Island, Colombia
14. Partitioning of ruthenium, rhodium and palladium between spinel and silicate melt and implications for platinum-group element fractionation trends
15. The tectonic evolution of the Quadrilátero Ferrífero, Minas Gerais, Brazil
16. Tomographic survey of the upper mantle structure of the South African continent using wave form inversion
17. Siderophile trace elements in the Earth's oceanic and upper mantle
18. Geochemical character of Prieska Province kimberlites and perovskites—some comparisons to cratonic types (abstr)
19. Platinum-group element distribution in komatiitic and tholeiitic volcanic rocks from Munro Township, Ontario
20. The platinum-group element and gold contents of the marginal rocks and sills of the Bushveld Compex
21. Magmatic sedimentation and carbonatitic differentiation in kimberlitic sills at Benfontein, South Africa
22. Earth's earliest continental lithosphere, hydrothermal flux and crustal recycling
23. PGE in the 3.5 Ga Jamestown ophiolite complex, Barberton greenstone belt, with implications for PGE distribution in the simatic lithosphere
24. Formation of an Archean continent
25. The distribution of PGE in fractionated Archaean komatiites, Western and Central Ultramafic Units, Mt Keith region, Western Australia
26. Mineralogy and petrology of the Aries diamondiferous kimberlite pipe, central Kimberley Block, Western Australia
27. Evidence for mantle heterogeneity from PGE abundances in Indian Ocean basalts
28. Sulfide mineralogy and chalcophile and siderophile element abundances in the Ivrea-Verbano mantle peridotites (western Italian Alps)
29. Geologia do diamante
30. Distribution of Au, Pd, Pt, Rh, Ru and Ir in ODP Leg 115 (Indian Ocean) hot-spot basalts: Implications for mantle processes
31. Platinum-group element geochemistry of continental tholeiites: Analysis of the Long Range dyke swarm, Newfoundland, Canada
32. Archean cratons, diamond and platinum: evidence for coupled long-lived crust-mantle systems
33. The diamondiferous roots of our wandering continent
34. Superkimberlites: a geodynamic diamond window to the Earth's core
35. Precious metals in magnesian low-Ti lavas: implications for metallogenesis and sulfur saturation in primary magmas
36. Proterozoic crustal evolution in southwest Africa
37. The nature of the subcontinental mantle from SrNdPb isotopic studies on kimberlitic perovskites
38. Southern African kimberlites and their mantle sample: implications for Archaean tectonics and lithosphere evolution
39. Depth and degree of melting of komatiites
40. Lithosphere peridotites of the Kaapvaal craton
41. Do lamprophyres have high precious metal contents?
42. First information on platinum-group metals (Pt, Rd, Rh, Ir, Ru, Os) in kimberlitic rocks
43. Platinum and palladium minerals in upper mantle derived lherzolites
44. Geochemical correlation between South African kimberlites and South Atlantic hotspots
45. Petrology and geochemistry of basaltic rocks from the Conrad fracture zone on the America-Antarctic Ridge
46. Analysis of the platinum-group elements in some South African kimberlites by fire-assay and neutron activation analysis
47. The analysis of the platinum-group elements by neutron activation analysis and their behaviour in fire-assay and natural igneous melts in the presence of a carbonaceous volatile phase
48. The analysis of the platinum-group elements in South African kimberlites by nickel sulfide fire-assay and neutron activation analysis
49. The geochemistry of the platinum-group elements in kimberlites and the nature of the PGE in the subcratonic lithospheric mantle
50. Aspects of the petrology of kimberlites and lamproites: some definitions and distinctions
51. Abundance and distribution of gold, palladium and iridium in some spinel and garnet lherzolites: implications for the nature and origin of precious metal-rich intergranular components in the upper mantle
52. Composition of the earth's upper mantle-1. Siderophile trace elements in ultramafic nodules
53. The regional setting of the Aggneys and Gamsberg base metal deposits, Namaqualand, South Africa
54. Platinum-group element deposits
55. SHRIMP U-Pb zircon geochronology of Archean granitoids from the Contendas-Mirante area of the São Francisco craton, Bahia, Brazil
56. Paladium, platinum rhodium, ruthenium and iridium in chromitites from the Massif du Sud and Tiébaghi Massif, New Caledonia
57. Platinum-group element resources in podiform chromitites from California and Oregon
58. Abundance of palladium, iridium and gold in kimberlites and associated nodules
59. Sulphide melt-silicate melt distribution coefficients for noble metals and other chalcophile metals as deduced from MORB: Implications for partial melting
60. Neoproterozoic crustal accretion in central Brazil
61. The southern limits of the São Francisco craton
62. Origin of diamonds in old enriched mantle
63. Origin of kimberlites and related magmas
64. Magnetite-serpentine-calicte dykes at Premier Mine and aspects of their relationship to kimberlite and carbonatite of alkalic carbonatite complexes
65. A evolucão da platforma Sul-Americana no Brasil e suas principas concentraçôes minerais
66. The petrogenesis of the Wesselton mine kimberlites, Kimberley, South Africa
67. The petrology of kimberlites, related rocks and associated mantle xenoliths from the Kuruman Province, South Africa
68. Contrasting Group I and Group II kimberlite petrology: towards a genetic model for kimberlites
69. The petrology, tectonic setting and emplacement ages of kimberlites in the south western border region of the Kaapvaal craton, Prieska area, South Africa
70. Pb, Sr and Nd isotopic evidence for sources of southern African Cretaceous kimberlites
71. SmNd, RbSr and UPb systematics of kimberlite and selected mantle xenoliths
72. Continental lithospheric sources for kimberlite magmatism
73. Geochemical character of southern African kimberlites: a new approach based on isotopic constraints
74. Emplacement ages of kimberlite occurrences in the Prieska region, southwest border of the Kaapvaal craton
75. An isotopic and geochemical study of kimberlite and associated alkaline rocks from Namibia
76. 3Fe) in kimberlite from Fayette County, Pennsylvania
77. Use of geochemistry as a guide to platinum-group element potential of mafic-ultramafic rocks: Examples from the west Pilbara block and Halls Creek Mobile Zone, Western Australia
78. Comparative geochemistry of West African kimberlites: Evidence for a micaceous kimberlite endmember of sublithospheric origin
79. The Kilbaran of southern Africa: tectonic evolution and metallogeny
80. Diamonds in Brazil and a proposed model for the origin and distribution of diamonds in the Coromandel region, Minas Gerais, Brazil
81. The platinum group elements: Nuclear methods for their analysis and their behaviour in terrestrial rocks and meteorites
82. The influence of temperature on the geochemistry of the platinum-group elements and gold
83. Platinum-group elements in a 3.5 Ga nickel-iron occurrence: possible evidence of a deep mantle origin
84. Petrology of the Sutherland Commonage melilitite intrusives
85. PGE distribution in 2.7 Ga layered komatiite flows from the Belingwe greenstone belt, Zimbabwe