Assessment of the Zr/Hf fractionation in oceanic basalts and continental materials during petrogenetic processes

In order to evaluate the widely accepted assumption that Zr/Hf ratios are uniform and chondritic (i.e. equal to 36.6) in terrestrial rocks [Jochum et al., Geochim. Cosmochim. Acta 50 (1986) 1173–1183], precise Zr/Hf measurements on oceanic basalts, continental materials and chondrites have been obta...

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Veröffentlicht in:	Earth and planetary science letters 2000-05, Vol.178 (3), p.285-301
Hauptverfasser:	David, K, Schiano, P, Allègre, C.J
Format:	Artikel
Sprache:	eng
Schlagworte:	chemical ratios chondrites hafnium Marine zirconium
Online-Zugang:	Volltext
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