Age of a Lunar Anorthosite
- 28 January 1972
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 175 (4020) , 428-430
- https://doi.org/10.1126/science.175.4020.428
Abstract
The crystallization age of an Apollo 15 anorthosite rock, 15415,9, returned from the lunar highlands has been measured to be (4.09 ± 0.19) × 10 9 years. The primitive lunar crust must have been formed in the first 300 to 400 × 10 6 years. The results give some credence to the hypothesis that the primitive lunar surface was molten and large-scale fractional crystallization occurred in the early history of the moon.Keywords
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