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Isotope Ratios of H, C, and O in CO₂ and H₂O of the Martian Atmosphere

Webster, Chris R. and Mahaffy, Paul R. and Flesch, Gregory J. and Niles, Paul B. and Jones, John H. and Leshin, Laurie A. and Atreya, Sushil K. and Stern, Jennifer C. and Christensen, Lance E. and Owen, Tobias and Franz, Heather and Pepin, Robert O. and Steele, Andrew (2013) Isotope Ratios of H, C, and O in CO₂ and H₂O of the Martian Atmosphere. Science, 341 (6143). pp. 260-263. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20200505-091430499

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Abstract

Stable isotope ratios of H, C, and O are powerful indicators of a wide variety of planetary geophysical processes, and for Mars they reveal the record of loss of its atmosphere and subsequent interactions with its surface such as carbonate formation. We report in situ measurements of the isotopic ratios of D/H and ¹⁸O/¹⁶O in water and ¹³C/¹²C, ¹⁸O/¹⁶O, ¹⁷O/¹⁶O, and ¹³C¹⁸O/¹²C¹⁶O in carbon dioxide, made in the martian atmosphere at Gale Crater from the Curiosity rover using the Sample Analysis at Mars (SAM)’s tunable laser spectrometer (TLS). Comparison between our measurements in the modern atmosphere and those of martian meteorites such as ALH 84001 implies that the martian reservoirs of CO₂ and H₂O were largely established ~4 billion years ago, but that atmospheric loss or surface interaction may be still ongoing.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1126/science.1237961DOIArticle
https://www.sciencemag.org/cgi/content/full/341/6143/260/DC1PublisherSupplementary Materials
ORCID:
AuthorORCID
Mahaffy, Paul R.0000-0003-1896-1726
Atreya, Sushil K.0000-0002-1972-1815
Stern, Jennifer C.0000-0002-0162-8807
Additional Information:© 2013 American Association for the Advancement of Science. Received 18 March 2013; accepted 17 June 2013. The research described here was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with NASA.
Funders:
Funding AgencyGrant Number
NASA/JPL/CaltechUNSPECIFIED
Issue or Number:6143
Record Number:CaltechAUTHORS:20200505-091430499
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200505-091430499
Official Citation:Isotope Ratios of H, C, and O in CO2 and H2O of the Martian Atmosphere. BY CHRIS R. WEBSTER, PAUL R. MAHAFFY, GREGORY J. FLESCH, PAUL B. NILES, JOHN H. JONES, LAURIE A. LESHIN, SUSHIL K. ATREYA, JENNIFER C. STERN, LANCE E. CHRISTENSEN, TOBIAS OWEN, HEATHER FRANZ, ROBERT O. PEPIN, ANDREW STEELE, THE MSL SCIENCE TEAM. SCIENCE 19 JUL 2013: 260-263; doi: 10.1126/science.1237961
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102999
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:05 May 2020 16:29
Last Modified:05 May 2020 16:29

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