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Lu-Hf AND Sm-Nd EVOLUTION IN LUNAR MARE BASALTS.

Journal of Geophysical Research
By: , and 

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Abstract

Lu-Hf and Sm-Nd data for mare basalts combined with Rb-Sr and total REE data taken from the literature suggest that the mare basalts were derived by small ( less than equivalent to 10%) degrees of partial melting of cumulate sources, but that the magma ocean from which these sources formed was light REE and hf-enriched. Calculated source compositions range from lherzolite to olivine websterite. Nonmodal melting of small amounts of ilmenite ( less than equivalent to 3%) in the sources seems to be required by the Lu/Hf data. A comparison of the Hf and Nd isotopic characteristics between the mare basalts and terrestrial oceanic basalts reveals that the epsilon Hf/ epsilon Nd ratios in low-Ti mare basalts are much higher than in terrestrial ocean basalts.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Lu-Hf AND Sm-Nd EVOLUTION IN LUNAR MARE BASALTS.
Series title Journal of Geophysical Research
ISBN 0875902332
Volume 89 Suppl
Year Published 1984
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Geophysical Research
First page 459
Last page 477
Conference Title Proc of the 14th Lunar and Planet Sci Conf
Conference Location Houston, TX, USA
Conference Date 14 March 1984 through 15 March 1984