Xe in glacial ice and the atmospheric inventory of noble gases |
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| Authors: | TJ Bernatowicz BM Kennedy FA Podosek |
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| Institution: | 1. McDonnell Center for the Space Sciences, Washington University, St. Louis MO 63130 USA;2. Department of Physics, University of California, Berkeley, CA 94720 USA |
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| Abstract: | We report noble gas abundance data for four Antarctic glacial ice samples which were selected to test the hypothesis that the apparent Xe deficiency in the earth's atmosphere relative to meteoritic abundance is due to incorporation of Xe in glacial ice. Our measurements indicate that the concentrations of Xe in glacial ice fall far short (~104) of what the hypothesis requires. The present results complete the survey of all significant atmospheric reservoirs and show that the “missing Xe” is not contained in any of them. It must either be in the solid earth in yet unsampled reservoirs, or else it simply does not exist and the noble gas abundance pattern of the earth is dissimilar to that in meteorites. |
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