Cosmic-ray exposure records and origins of meteorites

Details Cosmic-ray exposure records and origins of meteorites Cosmic-ray exposure records and origins of meteorites

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....5..386r&link_type=abstract

In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 5 p 386-389 (SEE N85-34991 23-93)

Mathematics

Cosmic Rays, Galactic Evolution, Meteorites, Meteoritic Composition, Solar Activity Effects, Cosmochemistry, Cosmology, Mathematical Models, Radioactive Isotopes, Solar System

Scientific paper

The cosmic-ray records of meteorites are used to infer much about their origins and recent histories. The methods used to interpret meteorites' cosmic-ray records, especially identifying simple or complex exposure histories, often are inadequate. Spallogenic radionuclides, stable nuclides, and measurements of products that have location-sensitive production rates, such as the tracks of heavy cosmic-ray nuclei or neutron-capture nuclides, are very useful in accurately determining a meteorite's history. Samples from different, known locations of a meteorite help in studying the cosmic-ray record. Such extensive sets of meteorite measuremetns, plus theoretical modeling of complex histories, improves the ability to predict the production of cosmogenic nuclides in meteorites, to distinguish simple and complex exposure histories, and to better determine exposure ages.

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