Rare Gas Record in the Largest Apollo 15 Rock
- 28 January 1972
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 175 (4020) , 421-422
- https://doi.org/10.1126/science.175.4020.421
Abstract
The spallation krypton data from rock chip 15555,23 indicate a wellshielded location during most of the time during which the rock was exposed to cosmic rays. A krypton-krypton exposure age of 81+17-7 x 106 years is calculated, and the gas retention ages are estimated. No evidence for the presence of products from plutonium-244 or iodine-129 was found.Keywords
This publication has 1 reference indexed in Scilit:
- Mass-Spectrometric Detection of Cosmic-Ray-Producedin Meteorites and the Possibility of Kr-Kr DatingPhysical Review Letters, 1967