Haines, E. L. and Albee, A. L. and Chodos, A. A. and Wasserburg, G. J. (1971) Uranium-bearing minerals of lunar rock 12013. Earth and Planetary Science Letters, 12 (2). pp. 145-154. ISSN 0012-821X. doi:10.1016/0012-821x(71)90070-7. https://resolver.caltech.edu/CaltechAUTHORS:20221121-962044600.1
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Abstract
The U distribution in rock 12013 was studied by fission track and elemental mapping techniques. Major U-bearing phases are whitlockite, apatite, zircon, and phase β, which is a Zr-Ti mineral rich in Fe, Nb, Y, REE and containing up to 3.6% UO₂, 4.7% ThO₂, and 4.2% PbO. Calculated microprobe ages for phase β average 4.0 AE and are in reasonable agreement with Rb-Sr and K-Ar ages. Phase β plays a significant role in the U-Th-Pb systematics of rock 12013 and may play a similar role in the model ages of lunar soil.
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Additional Information: | It is a pleasure to acknowledge helpful discussions with D.L. Burnett. We thank A.J. Gancarz for his help in solving some of the analytical problems. E.L. Haines was supported in part by a special grant from the Director's Discretionary Fund, Jet Propulsion Laboratory. The research was supported by NASA contracts NAS 7-100 (JPL) and NAS 9-8074. The microprobe laboratory has been developed with the support of the National Science Foundation, the Jet Propulsion Laboratory, and the Union Pacific Foundation. | ||||||||||
Group: | Division of Geological and Planetary Sciences | ||||||||||
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Issue or Number: | 2 | ||||||||||
DOI: | 10.1016/0012-821x(71)90070-7 | ||||||||||
Record Number: | CaltechAUTHORS:20221121-962044600.1 | ||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20221121-962044600.1 | ||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
ID Code: | 117927 | ||||||||||
Collection: | CaltechAUTHORS | ||||||||||
Deposited By: | Tony Diaz | ||||||||||
Deposited On: | 30 Nov 2022 18:45 | ||||||||||
Last Modified: | 30 Nov 2022 18:45 |
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