87Rb-86Sr age of rocks from the Apollo 15 landing site and significance of internal isochrons |
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| Authors: | Jean Louis Birck Serge Fourcade Claude J. Allegre |
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| Affiliation: | 1. Laboratoire de Géochimie et Cosmochimie, Institut de Physique du Globe, Universitéde Paris VI,France;2. Département des Sciences de la Terre, Universitéde Paris VII, Paris France |
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| Abstract: | Internal isochrons for two Apollo 15 rocks give an age of(3.34 ± 0.09)and(3.46 ± 0.04) × 109 years with an identical87Sr/86Sr initial ratio of 0.69928. Considering the possibility for the line obtained in a87Sr/86Sr,87Rb/86Sr diagram to be a mixing line, the significance of these results are discussed. |
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