Thermoluminescence of Japanese Antarctic ordinary chondrite collection

• Main Authors: Kiyotaka Ninagawa, Yoshihisa Hoshikawa, Hideyasu Kojima, Satoshi Matsunami, Paul H. Benoit, Derek W.G. Sears
• Format: Report
• Language: English
• Published: Department of Applied Physics, Okayama University of Science/Department of Applied Physics, Okayama University of Science/National Institute of Polar Research/Department of Earth Sciences, Miyagi University of Education/Department of Chemistry and Biochemistry, University of Arkansas/Department of Chemistry and Biochemistry, University of Arkansas 1998
• Subjects: Antarctic; Antarc*
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=5921; http://id.nii.ac.jp/1291/00005921/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=5921&item_no=1&attribute_id=18&file_no=1

Thermoluminescence (TL) data for Japanese Antarctic chondrites obtained by laboratories in Arkansas and Okayama were compared and found to be in good agreement. Data for three large Antarctic chondrites were used to develop new TL pairing criteria which were found to be less restrictive than previously used. These new criteria were applied to ten equilibrated and twenty-eight unequilibrated Japanese ordinary chondrites. The petrographic subtype of the forty-three unequilibrated ordinary chondrites were determined from their TL sensitivity and nine were found to have petrographic types under 3.3 and therefore are particularly primitive samples of solar system material.