Computer Science
Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1403s&link_type=abstract
Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 403.
Computer Science
2
Mars Surface, Rare Gases, Weathering, Water, Meteoritic Composition, Mars Atmosphere, Magma, Krypton Isotopes, Argon Isotopes, Chronology
Scientific paper
Results of studies of the K-Ar ages of 19 hand-picked samples of Lafayette iddingsite are presented. It is found that, since many samples have ages far greater than the possible terrestrial age of this meteorite, the iddingsite must be preterrestrial (i.e., Martian). The samples to not hall have the same apparent K-Ar age. This could either reflect multiple episodes of iddingsite formation or differing degrees of partial loss. The weathering products in the Lafayette meteorite formed as a result of the action of near-surface liquid water on Mars in one or more events not more than 700 Ma ago.
Grier Jennifer Ann
Li Baowen
Lindstrom David J.
Olson Eric
Swindle Timothy D.
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