Wasserburg, G. J. and DePaolo, D. J. (1979) Models of earth structure inferred from neodymium and strontium isotopic abundances. Proceedings of the National Academy of Sciences of the United States of America, 76 (8). pp. 3594-3598. ISSN 0027-8424 http://resolver.caltech.edu/CaltechAUTHORS:WASpnas79
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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.
|Additional Information:||© 1979 by the National Academy of Sciences. Contributed by G.J. Wasserburg, May 23, 1979. This work has been supported by National Science Foundation Grants EAR76-22494 and EAR78-12966. The publication costs of this article were defrayed in part by page charge payment. This article must therefore be hereby marked "advertisement" in accordance with 18 U.S.C. §1734 solely to indicate this fact.|
|Subject Keywords:||mantle; basalts; magma genesis|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||17 May 2008|
|Last Modified:||26 Dec 2012 10:01|
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