Cosmogenic Radionuclide Contents of Antarctic Meteorites from Allan Hills Having High Natural Thermoluminescence

Details Cosmogenic Radionuclide Contents of Antarctic Meteorites from Allan Hills Having High Natural Thermoluminescence Cosmogenic Radionuclide Contents of Antarctic Meteorites from Allan Hills Having High Natural Thermoluminescence

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..897m&link_type=abstract

Lunar and Planetary Science, volume 27, page 897

Physics

Meteorites, Radionuclides, Spectrometry: Accelerator Mass, Thermoluminescence

Scientific paper

Cosmic ray bombardment produces stable and radioactive nuclides, as well as thermoluminescence (TL). Concentrations of long-lived radionuclides have been measured in fifteen Antarctic H-chondrites with high TL levels. Sears et al. studied these fifteen meteorites and postulated an unusual history. They noted that two have a young terrestrial age. We decided to examine their irradiation histories by measuring long-lived cosmogenic radionuclides in the fifteen H4-6 chondrites by accelerator mass spectrometry (AMS). The radionuclide concentration, TL data, and petrographic type, supports the idea that these meteorites originated from a single source with a unique orbital history.

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