Combined La-Ce and Sm-Nd isotope systematics in petrogenetic studies

Details Combined La-Ce and Sm-Nd isotope systematics in petrogenetic studies Combined La-Ce and Sm-Nd isotope systematics in petrogenetic studies

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.327..113t&link_type=abstract

Nature (ISSN 0028-0836), vol. 327, May 14, 1987, p. 113-117.

Physics

13

Cerium Isotopes, Lanthanum Isotopes, Neodymium Isotopes, Petrology, Radioactive Age Determination, Samarium Isotopes, Basalt, Earth Crust, Earth Mantle, Metamorphic Rocks, Planetary Evolution, Rare Earth Elements

Scientific paper

A theoretical model is presented for the coupled evolution of cerium and neodymium isotopes in terrestrial rocks. Data presented for samples ranging from mid-ocean-ridge basalts to continental metamorphic rocks show that, while mantle-derived rocks are dispersed on a Ce-Nd diagram, continental crustal rocks form a clearly defined 'mantle array'. As analytical techniques improve, cerium isotopes will provide valuable constraints in studies of petrogenesis and crustal evolution.

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