Platinum-group minerals and other detrital components in the karoo-age somabula gravels, Gweru, Zimbabwe

Canadian Mineralogist

Volumn 40, Issue 2, 2002, Pages 435-456

  Oberthür, Thomas ^a   Weiser, Thorolf W ^a   Gast, Lothar ^a   Schoenberg, Ronny ^a   Davis, Donald W ^a  

^a FEDERAL INSTITUTE FOR GEOSCIENCES AND NATURAL RESOURCES BGR   (Germany)

Author keywords

Gold; Gweru; Karoo formation; Monazite; Os isotopes; Os Ir Ru Rh Pt alloys; Paleoplacer; Platinum group minerals; Pt Fe alloy; Rustenburgite; Somabula gravels; Tantalite; U Pb dating; Zimbabwe; Zircon

Indexed keywords

CRYSTALLIZATION; DIAMONDS; HIGH TEMPERATURE EFFECTS; LITHOLOGY; MINERAL EXPLORATION; PLACERS; ROCKS;

HEAVY MINERALS;

PLATINUM COMPOUNDS;

GRAVEL; HEAVY MINERAL; PLACER DEPOSIT; PLATINUM GROUP ELEMENT;

GWERU; ZIMBABWE;

EID: 0036529106     PISSN: 00084476     EISSN: None     Source Type: Journal    
DOI: 10.2113/gscanmin.40.2.435     Document Type: Article

References (50)

1. Magmatic and supergene platinum-group minerals in the New Caledonia ophiolite
2. Osmium and lead isotopes of rare OsIrRu minerals: Derivation from the core-mantle boundary region?
3. The development of platinum-group minerals in laterites
4. The development of platinum-group minerals (PGM) in laterites: Mineral morphology
5. Somabula diamond Project-Zimbabwe. Final report on exploration programme of Trans Hex Group Limited, EPO 771 and 808
6. The mineralogy and distribution of platinum group mineral (PGM) placer deposits of the world
7. Platinum-group minerals in the Selukwe subchamber, Great Dyke, Zimbabwe: Implications for PGE collection mechanisms and post-formational redistribution
8. Some observations on textures and inclusions in alluvial platinoids
9. The Talnakh ore field: A copper - Nickel - Platinum giant
10. Temperature of nonvariant equilibria in the systems Zr-Ru and Ru-Ir
11. Mineralogy of platinum-group minerals in the Witwatersrand, South Africa
12. Final report of Somabula diamond field, Rio Tinto, EPO 182
13. Platinum-group minerals in Quaternary gold placers in the upper Chindwin area of northern Burma
14. Nomenclature of platinum-group element alloys: Review and revision
15. The Somabula diamond fields
16. Solubility relationship in the ruthenium-platinum system
17. 238U
18. Platinum-group minerals and associated oxides and base metal sulphides of the Main Sulphide Zone, Great Dyke, Zimbabwe
19. A low contamination method for the hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations
20. Gorceixite in Southern Rhodesia
21. The geology of the diamond-bearing gravels of the Somabula Forest
22. A review and re-appraisal of ideas concerning the source of diamonds in the Triassic Somabhula gravels, Zimbabwe
23. A practical image analysis technique for estimating the weight of abraded mineral fractions used in U-Pb dating
24. Economic geology of the platinum metals
25. Rustenburgite and atokite, two new platinum-group minerals from the Merensky Reef, Bushveld Igneous Complex
26. A multielement geochronologic study of the Great Dyke, Zimbabwe: Significance of the robust and reset ages
27. "Plug in" Os distillation
28. Growth of subcontinental lithospheric mantle beneath Zimbabwe started at or before 3.8 Ga: Re-Os study on chromites
29. The isotopic constitution of osmium
30. Precise U-Pb mineral ages, Rb-Sr and Sm-Nd systematics for the Great Dyke, Zimbabwe Craton and Limpopo Belt
31. Mobility of PGE and PGM in the supergene environment at Hartley mine, Great Dyke, Zimbabwe - A case study
32. Detrital platinum group minerals in rivers along the Great Dyke, and in the Somabula gravels, Zimbabwe
33. Phase equilibria in the quaternary molybdenum - Ruthenium - Rhodium-palladium system
34. History of the Somabula diamond field, Willoughbys Siding
35. Quantitative analysis of homogeneous or stratified microvolumes applying the model "PAP" in microprobe analysis
36. U-Pb columbite ages of pegmatites from Sveconorwegian terranes in southwestern Sweden
37. On the source of the Great Dyke layered ultramafic to mafic intrusion, Zimbabwe: A Re-Os study on chromites
38. Precise Os isotope and Re-Os isotope dilution measurements down to the picogram level using multicollector inductively coupled plasma mass spectrometry
39. On a collection of fossil plants from Southern Rhodesia
40. 187Os isotopes in cosmochemistry and high-temperature geochemistry
41. Approximation of terrestrial lead isotope evolution by a two-stage model
42. Platinum-group minerals in gold placers in northwestern Salair
43. Alluvial nuggets of platinum-group minerals and alloys from Finnish Lapland
44. The geology of the country around Gwelo
45. Check list of the minerals of Rhodesia
46. Distribution of trace PGE in pentlandite and of PGM in the Main Sulfide Zone (MSZ) at Mimosa mine, Great Dyke, Zimbabwe
47. Zircon geochronology of Archaean felsic sequences in the Zimbabwe Craton: A revision of greenstone stratigraphy and a model for crustal growth