Lu-Hf AND Sm-Nd EVOLUTION IN LUNAR MARE BASALTS.
Journal of Geophysical Research
By: D.M. Unruh, P. Stille, P. J. Patchett, and M. Tatsumoto
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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.
| 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 |
| Google Analytic Metrics | Metrics page |