| 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. |
| Genre: | Article |
| ProdID: | 70013141 |
| Citation Author: | Unruh, D. M.; Stille, P.; Patchett, P. J.; Tatsumoto, M. |
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| Citation End Page: | 477 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Geophysical Research |
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| Citation Number Of Pages: | 19 |
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| Citation Search Results Text: | Lu-Hf AND Sm-Nd EVOLUTION IN LUNAR MARE BASALTS.; 1984; Article; Journal; Journal of Geophysical Research; Unruh, D. M.; Stille, P.; Patchett, P. J.; Tatsumoto, M. |
| Citation Start Page: | 459 |
| Citation Volume: | 89 Suppl |
| Citation Year: | 1984 |
| Type: | citation/reference |
| Text: | Lu-Hf AND Sm-Nd EVOLUTION IN LUNAR MARE BASALTS.; 1984; Article; Journal; Journal of Geophysical Research; Unruh, D. M.; Stille, P.; Patchett, P. J.; Tatsumoto, M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1984 00:00 -0600 |
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