Hf isotopic measurements on Barberton komatiites: Effects of incomplete sample dissolution and importance for primary and secondary magmatic signatures

Chemical Geology

Volumn 207, Issue 3-4, 2004, Pages 261-275

  Blichert Toft, Janne ^a   Arndt, Nicholas T ^b   Gruau, Gerard ^c  

^a UNIVERSITÉ DE LYON   (France)

^b UNIVERSITÉ GRENOBLE ALPES   (France)

^c UNIVERSITÉ DE RENNES 1   (France)

Author keywords

Baddeleyite; Barberton Greenstone Belt; Bomb dissolution; Carl's Flow; Garnet; Hf isotopes; Komatiites; Magma ocean; Savillex beakers; Schapenburg Greenstone Remnant; Zircon

Indexed keywords

GEOCHEMISTRY; HAFNIUM; ISOTOPIC COMPOSITION; KOMATIITE; SAMPLE PREPARATION;

AFRICA; BARBERTON; MPUMALANGA; SOUTH AFRICA; SOUTHERN AFRICA; SUB-SAHARAN AFRICA;

EID: 3042645954     PISSN: 00092541     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.chemgeo.2004.03.005     Document Type: Article

References (36)

1. Amelin, Y., Lee, D.-C., Halliday, A.N., 1999. Lutetium-hafnium and uranium-lead systematics of early-middle Archean single zircon grains. Ninth Annual V.M. Goldschmidt Conference, LPI Contribution No. 971, Lunar and Planetary Institute, Houston, Abstract #7202.
2. Anhaeusser C.R. A geological investigation of the Archaean granite- greenstone terrane south of the Boesmanskop syenite pluton, Barberton Mountain Land Trans. Geol. Soc. South Africa 9 1980 73-106
3. Armstrong R.A. Compston W. de Wit M.J. Williams I.S. The stratigraphy of the 3.5-3.2 Ga Barberton Greenstone Belt revisited: A single zircon ion microprobe study Earth Planet. Sci. Lett. 101 1990 90-106
4. Arndt N.T. Archean komatiites Condie K.C. Archean Crustal Evolution 1994 11-44 Elsevier Amsterdam
5. Arndt N.T. Naldrett A.J. Pyke D.R. Komatiitic and iron-rich tholeiitic lavas of Munro Township, northeast Ontario J. Petrol. 18 1977 319-369
6. Barrat J.A. Keller F. Amossé J. Taylor R.N. Nesbitt R.W. Hirata T. Determination of rare earth elements in sixteen silicate reference samples by ICP-MS after Tm addition and ion exchange separation Geostand. Newsl. 20 1996 133-139
7. Barrat J.A. Blichert-Toft J. Gillet P. Keller F. The differentiation of eucrites: The role of in situ crystallization Meteorit. Planet. Sci. 35 2000 1087-1100
8. Blichert-Toft J. On the Lu-Hf isotope geochemistry of silicate rocks Geostand. Newsl. 25 2001 41-56
9. Blichert-Toft J. Albarède F. The Lu-Hf isotope geochemistry of chondrites and the evolution of the mantle-crust system Earth Planet. Sci. Lett. 148 1997 243-258
10. Blichert-Toft J. Arndt N.T. Hf isotope compositions of komatiites Earth Planet. Sci. Lett. 171 1999 439-451
11. Blichert-Toft J. Chauvel C. Albarède F. Separation of Hf and Lu for high-precision isotope analysis of rock samples by magnetic sector-multiple collector ICP-MS Contrib. Mineral. Petrol. 127 1997 248-260
12. Blichert-Toft J. Albarède F. Rosing M. Frei R. Bridgwater D. The Nd and Hf isotopic evolution of the mantle through the Archean. Results from the Isua supracrustals, West Greenland, and from the Birimian terranes of West Africa Geochim. Cosmochim. Acta 63 1999 3901-3914
13. 176Hf in eucrites and the differentiation of the HED parent body Earth Planet. Sci. Lett. 204 2002 167-181
14. Cawthorn R.G. Strong D.F. The petrogenesis of komatiites and related rocks as evidence for a layered upper mantle Earth Planet. Sci. Lett. 23 1974 369-375
15. Chauvel C. Blichert-Toft J. A hafnium isotope and trace element perspective on melting of the depleted mantle Earth Planet. Sci. Lett. 190 2001 137-151
16. Claoué-Long J.C. Compston W. Cowden A. The age of the Kambalda greenstones resolved by ion-microprobe: Implications for Archean dating methods Earth Planet. Sci. Lett. 89 1988 239-259
17. Green D.H. Genesis of Archaean peridotitic magmas and constraints on Archaean geothermal gradients and tectonics Geology 3 1974 15-18
18. Gruau G. Chauvel C. Arndt N.T. Cornichet J. Aluminum depletion in komatiites and garnet fractionation in the early Archean mantle: Hafnium isotopic constraints Geochim. Cosmochim. Acta 54 1990 3095-3101
19. Hofmann A.W. Chemical differentiation of the Earth: The relationship between mantle, continental crust, and oceanic crust Earth Planet. Sci. Lett. 90 1988 297-314
20. Jahn B.-M. Auvray B. Blais S. Capdevila R. Cornichet J. Vidal F. Hameurt J. Trace element geochemistry and petrogenesis of Finnish Greenstone Belts J. Petrol. 21 1980 201-244
21. Kleinhanns I.C. Kramers J.D. Tracing Archean intracrustal processes with Hf, Nd and Pb isotopes. TTG and granites from the Barberton Mountain Land, South Africa EOS Trans. AGU 82 2001 47
22. 40Ar) data Geochim. Cosmochim. Acta 58 1994 969-984
23. 87Sr geochronology of enstatite meteorites Earth Planet. Sci. Lett. 42 1979 333-347
24. Nesbitt R.W. Jahn B.-M. Purvis A.C. Komatiites: An early Precambrian phenomenon J. Volcanol. Geotherm. Res. 14 1982 31-45
25. Ohtani E. Moriyama J. Kawabe I. Majorite garnet stability and its implication for genesis of komatiite magmas Chem. Geol. 70 1988 147
26. Patchett P.J. Bridgwater D. Origin of continental crust of 1.9-1.7 Ga age defined by Nd isotopes in the Ketilidian terrain of South Greenland Contrib. Mineral Petrol. 87 1984 311-318
27. Patchett P.J. Tatsumoto M. A routine high-precision method for Lu-Hf isotope geochemistry and chronology Contrib. Mineral Petrol. 75 1980 263-267
28. Patchett P.J. Ruiz J. Nd isotopic ages of crust formation and metamorphism in the Precambrian of eastern and southern Mexico Contrib. Mineral Petrol. 96 1987 523-528
29. Puchtel I.S. Arndt N.T. Hofmann A.W. Haase K.M. Kröner A. Kulikov V.S. Kulikova V.V. Garbe-Schönberg C.-D. Nemchin A.A. Petrology of mafic lavas within the Onega plateau, central Karelia: Evidence for the 2.0 Ga plume-related continental crustal growth in the Baltic Shield Contrib. Mineral Petrol. 130 1998 134-153
30. 176Lu decay constant determined by Lu-Hf and U-Pb isotope systematics of Precambrian mafic intrusions Earth Planet. Sci. Lett. 219 2004 311-324
31. Sun S.-S. Nesbitt R.W. Chemical heterogeneity of the Archaean mantle, composition of the Earth and mantle evolution Earth Planet. Sci. Lett. 35 1977 429-448
32. Sun S.-S. Nesbitt R.W. Petrogenesis of Archean ultrabasic and basic volcanics: Evidence from rare earth elements Contrib. Mineral Petrol. 65 1978 301-325
33. Taylor S.R. McLennan S.M. The Continental Crust: Its Composition and Evolution 1985 Blackwell Oxford
34. Vervoort J.D. Blichert-Toft J. Evolution of the depleted mantle: Hf isotope evidence from juvenile rocks through time Geochim. Cosmochim. Acta 63 1999 533-556
35. Vervoort J.D. Patchett P.J. Blichert-Toft J. Albarède F. Relationships between Lu-Hf and Sm-Nd isotopic systems in the global sedimentary system Earth Planet. Sci. Lett. 168 1999 79-99
36. Viljoen M.J. Viljoen R.P. The geology and geochemistry of the lower ultramafic unit of the Onverwacht Group and a proposed new class of igneous rocks Spec. Publ. Geol. Soc. South Africa 2 1969 55-85