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Deuteronomy?: A Puzzle of Deuterium and Oxygen on Mars

Yung, Yuk L. and Kass, David M. (1998) Deuteronomy?: A Puzzle of Deuterium and Oxygen on Mars. Science, 280 (5369). pp. 1545-1546. ISSN 0036-8075. doi:10.1126/science.280.5369.1545.

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Mars is covered by channels that were likely formed by liquid water sometime in its past. Among the very few available clues to a wetter and warmer ancient climate on Mars are the isotopic signatures left by processes that have modified its atmosphere over time. In their Research Commentary, Yung and Kass discuss two sets of results in the same issue: Krasnopolsky et al . have used the Hubble Space Telescope to detect the presence of deuterium in the upper atmosphere of Mars, and Farquhar et al . report measurements of the Martian meteorite ALH84001 showing that the oxygen isotopes in the carbonate are fractionated with respect to silicate minerals. The findings suggest the presence of chemical processes operating in Mars' atmosphere that have yet to be fully understood.

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Yung, Yuk L.0000-0002-4263-2562
Additional Information:© 1998 American Association for the Advancement of Science.
Issue or Number:5369
Record Number:CaltechAUTHORS:20141124-104505050
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:52094
Deposited By: Tony Diaz
Deposited On:24 Nov 2014 21:21
Last Modified:10 Nov 2021 19:20

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