Discovery of Solar Wind Neon in the Allende Meteorite
Inert gases have been measured in seven sieve fractions of a disaggregated sample of the Allende meteorite. The disaggregation was done by ultrasonic treatment in water and by freeze-thawing. This sample constitutes the first gas-rich portion know to occur in the Allende meteorite. The composition of the trapped neon is solar, i.e., Neon-B, and the gas-rich samples contain more trapped 20Ne than 36Ar. The set of sieve fractions show an anticorrelation of 20Ne content and grain size. Gas-richness seems to be quite common among the CV3 meteorites with Allende added to the earlier known cases of Mokoia, Vigarano, and Efremovka.
Physics and Astronomy
Journal of Geophysical Research
D. Heymann and R. L. Palma, 1986. Discovery of Solar Wind Neon in the Allende Meteorite. Journal of Geophysical Research 91, No. B4, D460-466.
Publisher's Copyright and Source
Copyright © 1986 The American Geophysical Union. Article published by John Wiley and Sons in Journal of Geophysical Research, volume 91, issue number B4, March 1986, pages 460-466. Available online on September 20, 2012: http://dx.doi.org/10.1029/JB091iB04p0D460