Models of earth structure inferred from neodymium and strontium isotopic abundances

G. J. Wasserburg and D. J. DePaolo
PNAS August 1, 1979 76 (8) 3594-3598; https://doi.org/10.1073/pnas.76.8.3594

Abstract

A simplified model of earth structure based on the Nd and Sr isotopic characteristics of oceanic and continental tholeiitic flood basalts is presented, taking into account the motion of crustal plates and a chemical balance for trace elements. The resulting structure that is inferred consists of a lower mantle that is still essentially undifferentiated, overlain by an upper mantle that is the residue of the original source from which the continents were derived.

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Models of earth structure inferred from neodymium and strontium isotopic abundances
G. J. Wasserburg, D. J. DePaolo
Proceedings of the National Academy of Sciences Aug 1979, 76 (8) 3594-3598; DOI: 10.1073/pnas.76.8.3594
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