Clinopyroxenes HFSEs

The robustness of the Lu-Hf isotope system in some mantle environments is demonstrated by the precise Lu-Hf isochron of 1,413 67 Myr dehned by clinopyroxene separates from the Beni Bousera peridotite massif (Pearson and Nowell, 2003). This age probably dates the time of melt extraction from these rocks and is considerably more precise than the Sm-Nd isochron or the scattered Re-Os isotope systematics of these rocks. This indicates the potential power of this system in dating mantle rocks. The initial results from the Lu-Hf isotope system indicate that of the incompatible element isotope systems, it is the more robust to metasomatic effects, with signatures frequently recording the time-integrated response to melt depletion. 

The Lu-Hf isotope composition of cratonic lithosphere disequilibrium between garnet and clinopyroxene in kimberlite xenoliths. Geochim. Cosmochim. Acta 6651, Ain. 

Dunn T. (1987) Partitioning of Hf, Lu, Ti, and Mn between olivine, clinopyroxene, and basaltic liquid. Contrib. Mineral. Petrol. %, 476-484. 

Williams CT, Potts PJ (1988) Element distribution maps in fossil bones. Archaeometry 30 237-247 Wittmers LE, Aufderheide AC, Wallgren J, Rapp G, Alich A (1988) Lead in Bone IV Distribution of lead in the human skeleton. Arch Environ Health 43 381-391 Wood BJ, Blundy ID (1997) A predictive model for rare earth element partitioning between clinopyroxene and anhydrous silicate melt. Contrib Mineral Petrol 129 166-181 Wright J, Seymour R S, Shaw HF (1984) REE and Nd isotopes in conodont apatite variations with geologic age and depositional enviromnent. In Conodont Biofacies and Provincialism. Clark DL (ed) Geol Soc Am Spec Paper, p 325-340... 

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