(1989) © Meteoritical Society, 1989. Printed in USA Abstracts of the 52nd Meeting of the Meteoritical...Physics Department, Washington University, St. Louis, MO 63130, USA. 'Dept. of Earth Sciences, Oxford University...compact group of bodies and form the stable "meteorite swarm" in resonant orbit (Hughes, 1982). A small... University of Chicago, Chicago, IL 60637-1433, USA. Meteoritic SiC contains at least two exotic noble-gas...from the recent cosmic-ray irradiation of the meteorite; the rest presumably comes from a presolar cosmic-ray |