A Caltech Library Service

Models of earth structure inferred from neodymium and strontium isotopic abundances

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.

See Usage Policy.


Use this Persistent URL to link to this item:


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.

Item Type:Article
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
Issue or Number:8
Record Number:CaltechAUTHORS:WASpnas79
Persistent URL:
Alternative URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10546
Deposited By: Tony Diaz
Deposited On:17 May 2008
Last Modified:03 Oct 2019 00:10

Repository Staff Only: item control page