Isotopic composition of carbonate in EETA 79001 and its relation to parent body volatiles

Details Isotopic composition of carbonate in EETA 79001 and its relation to parent body volatiles Isotopic composition of carbonate in EETA 79001 and its relation to parent body volatiles

Apr 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988gecoa..52..925c&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 52, April 1988, p. 925-927.

Computer Science

18

Calcite, Carbon Dioxide, Mars Surface, Meteoritic Composition, Oxygen Isotopes, Carbon Isotopes, Igneous Rocks, Nitrogen Isotopes, Remote Sensing, Silicates

Scientific paper

The carbonate minerals in shergottite EETA 79001 were probably formed by weathering reactions on its parent body. If so, and if the volatiles on this body were degassed from the interior by volcanic processes, it is then possible to use the difference in oxygen isotopic composition between the silicates and carbonate to estimate the abundance ratio of water to carbon dioxide on the parent body. This ratio, about three to one by weight, is consistent with several estimates for degassed volatiles on Mars.

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