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Oxygen isotopes in the Martian atmosphere: Implications for the evolution of volatiles

McElroy, Michael B. and Yung, Yuk Ling (1976) Oxygen isotopes in the Martian atmosphere: Implications for the evolution of volatiles. Planetary and Space Science, 24 (12). pp. 1107-1113. ISSN 0032-0633. doi:10.1016/0032-0633(76)90148-3.

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Non-thermal escape of oxygen by recombination of exospheric O_2^+ combined with diffusive separation of gases at lower altitude provides a mechanism through which the Martian atmosphere may be enriched in ^(18)O relative to ^(16)O. Measurement of the abundance of ^(18)O relative to ^(16)O together with a determination of the turbopause may be used to develop important constraints on the history of Martian volatiles. Models for the interpretation of these data are developed and discussed in light of present information.

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Yung, Yuk Ling0000-0002-4263-2562
Additional Information:Copyright © 1976 Published by Elsevier Ltd. Received 4 July 1976 by special delivery. We wish to thank T. Y. Kong for important discussions on importance of heterogeneous processes at the Martian surface. The paper was written while the authors were guests of the Department of Applied Mathematics and Theoretical Physics, Queen's University, Belfast We wish to acknowledge out appreciation to Professor P. G. Burke and the staff of the Department for their hospitality. The work in this paper was supported by the Atmospheric Sciences Section of the National Science Foundation, under grant #NSF-ATM-75-22723, and by the National Aeronautics and Space Administration under grant #NAS-1-10492, both to Harvard University.
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Issue or Number:12
Record Number:CaltechAUTHORS:20140811-151619695
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Official Citation:Michael B. Mcelroy, Yuk Ling Yung, Oxygen isotopes in the martian atmosphere: Implications for the evolution of volatiles, Planetary and Space Science, Volume 24, Issue 12, December 1976, Pages 1107-1113, ISSN 0032-0633, (
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ID Code:48348
Deposited By: George Porter
Deposited On:12 Aug 2014 17:47
Last Modified:10 Nov 2021 18:31

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