Cosmic-ray exposure records and origins of meteorites
Conference
·
OSTI ID:5516997
The cosmic-ray records of meteorites can be used to infer much about their origins and recent histories. Some meteorites had simple cosmic-ray exposure histories, while others had complex exposure histories with their cosmogenic products made both before and after a collision in space. The methods used to interpret meteorites' cosmic-ray records, especially identifying simple or complex exposure histories, often are inadequate. Besides spallogenic radionuclides and stable nuclides, 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 measurements, plus theoretical modeling of complex histories, will improve our ability to predict the production of cosmogenic nuclides in meteorites, to distinguish simple and complex exposure histories, and to better determine exposure ages.
- Research Organization:
- Los Alamos National Lab., NM (USA)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5516997
- Report Number(s):
- LA-UR-85-1922; CONF-850883-3; ON: DE85012759
- Country of Publication:
- United States
- Language:
- English
Similar Records
Cosmic-ray interactions and dating of meteorite stranding surfaces with cosmogenic nuclides
Exposure Histories of Lunar Meteorites Northwest Africa 032 and DHOFAR 081
Cosmic-ray record in solar system matter
Conference
·
Thu Dec 31 23:00:00 EST 1987
·
OSTI ID:7051903
Exposure Histories of Lunar Meteorites Northwest Africa 032 and DHOFAR 081
Conference
·
Sat Mar 31 23:00:00 EST 2001
·
OSTI ID:803429
Cosmic-ray record in solar system matter
Journal Article
·
Fri Dec 31 23:00:00 EST 1982
· Annu. Rev. Nucl. Sci.; (United States)
·
OSTI ID:6575853