The Nd-Sr isotopic correlation in mantle materials and geodynamic consequences

Details The Nd-Sr isotopic correlation in mantle materials and geodynamic consequences The Nd-Sr isotopic correlation in mantle materials and geodynamic consequences

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pepi...19..293a&link_type=abstract

Physics of the Earth and Planetary Interiors, Volume 19, Issue 4, p. 293-306.

Physics

33

Scientific paper

The neodymium-strontium isotopic correlation observed in most of the Earth mantle materials is evaluated by means of direct modelling. Several geochemical models are quantitatively developed to explain the observations. The main results of this modelling are that such a correlation is not geochemically trivial and that it corresponds to specific conditions in chemical fractionation. These specific conditions seem to be satisfied by solid-liquid partitioning in magmatic conditions. The discussion of the experimental data supports a continuous convecting-magmatic fractionation model for a large proportion of the mantle. I.P.G. Contribution No. 331.

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