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Trace elements in fines from the Apollo 15 deep drill |
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| Authors: | Philip A. Helmke Karen M. Telander Charles K. Weiss Larry A. Haskin |
| Affiliation: | Department of Chemistry, University of Wisconsin—Madison, 53706, U.S.A. |
| Abstract: | No systematic variations in concentrations with depth were found for 1O trace elements in samples from the Apollo 15 deep drill. Presence of a significant amount of KREEP is indicated. |
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