Computer Science
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..757k&link_type=abstract
In Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 2: G-M p 757-758 (SEE N94-16173 03-91)
Computer Science
Atmospheric Composition, Carbon Dioxide, Chassignites, Hydrology, Mars Atmosphere, Mars Surface, Meteoritic Composition, Nakhlites, Shergottites, Carbon 14, Mass Spectroscopy, Oxygen Isotopes, Pyrolysis, Telescopes, Viking Lander Spacecraft, Water
Scientific paper
Attempts to unravel the origin and evolution of the atmosphere and hydrosphere on Mars from isotopic data have been hampered by the impreciseness of the measurements made by the Viking Lander and by Earth-based telescopes. The SNC meteorites which are possibly pieces of the Martian surface offer a unique opportunity to obtain more precise estimates of the planet's volatile inventory and isotopic composition. Recently, we reported results on oxygen isotopes of water extracted by pyrolysis from samples of Shergotty, Zagami, Nakhla, Chassigny, Lafayette, and EETA-79001. Now we describe complementary results on the stable isotopic composition of carbon dioxide extracted simultaneously from those same samples. We will also report on C-14 abundances obtained by accelerator mass spectrometry (AMS) for some of these CO2 samples.
Clayton Robert N.
Gibson Everett K. Jr.
Karlsson Haraldur R.
Mayeda Toshiko K.
Timothy Jull A. J.
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