Noble gases in 1609, 2001 and 2006 lunar samples

Details Noble gases in 1609, 2001 and 2006 lunar samples Noble gases in 1609, 2001 and 2006 lunar samples

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1605y&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 605.

Other

Lunar Probes, Rare Gases, Regolith, Chemical Elements, Xenon Isotopes, Argon Isotopes

Scientific paper

Noble gases in Luna-16 and Luna-20 samples were studied by stepwise heating. The usual elemental ratios and dependence of noble gas abundances on grain-size were observed. Luna-16 regolith is more mature than Luna-20 regolith, but the former seems to have trapped gases more recently than the latter. Here we report preliminary results for the Luna-16 and Luna-20 samples. In order to test the hypothesis that the fission Xe is present in the Luna-20 samples, we analyzed Luna-20 samples by stepwise heating. Another goal of the work is to study regolith sample exposure ages and gas trapping age using the 40 Ar/36 Ar ratio.

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