Publication Date:
2019-07-13
Description:
Stable isotope ratios in C, H, N, O and S are powerful indicators of a wide variety of planetary geophysical processes that can identify origin, transport, temperature history, radiation exposure, atmospheric escape, environmental habitability and biological activity [2]. For Mars, measurements to date have indicated enrichment in all the heavier isotopes consistent with atmospheric escape processes, but with uncertainty too high to tie the results with the more precise isotopic ratios achieved from SNC meteoritic analyses. We will present results to date of H, C and O isotope ratios in CO2 and H2O made to high precision (few per mil) using the Tunable Laser Spectrometer (TLS) that is part of the Sample Analysis at Mars (SAM) instrument suite on MSL s Curiosity Rover.
Keywords:
Lunar and Planetary Science and Exploration
Type:
JSC-CN-28080
,
Lunar aud Plauetary Science Conference; Mar 18, 2013 - Mar 22, 2013; The Woodlands, TX; United States
Format:
application/pdf
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