Noble gases in twenty Yamato H-chondrites: Comparison with Allan Hills chondrites and modern falls

Details Noble gases in twenty Yamato H-chondrites: Comparison with Allan Hills chondrites and modern falls Noble gases in twenty Yamato H-chondrites: Comparison with Allan Hills chondrites and modern falls

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993lpi....24..889l&link_type=abstract

In Lunar and Planetary Inst., Twenty-Fourth Lunar and Planetary Science Conference. Part 2: G-M p 889-890 (SEE N94-16173 03-91)

Computer Science

Antarctic Regions, Chondrites, Meteoritic Composition, Rare Gases, Trace Elements, Asteroid Belts, Gas Composition, Helium Isotopes, Neon Isotopes, Radiogenic Materials

Scientific paper

Concentration and isotopic composition of noble gases have been measured in 20 H-chrondrites found on the Yamato Mountains ice fields in Antarctica. The distribution of exposure ages as well as of radiogenic He-4 contents is similar to that of H-chrondrites collected at the Allan Hills site. Furthermore, a comparison of the noble gas record of Antarctic H-chrondrites and finds or falls from non-Antarctic areas gives no support to the suggestion that Antarctic H-chrondrites and modern falls derive from differing interplanetary meteorite populations.

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