@article{oai:nipr.repo.nii.ac.jp:00001220,
 author = {Takaoka, Nobuo and Saito, Kazuo and Ohba, Yoshio and Nagao, Keisuke},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Dec},
 note = {P(論文), The concentrations of rare gases and isotopic compositions of He, Ne and Ar were determined in twenty-four antarctic meteorites by rare gas mass spectrometry. No significant difference is found in cosmic-ray irradiation and thermal histories between antarctic and non-antarctic chondrites, except a discovery of extremely long irradiation age of 92 m.y. for the Yamato-74035 (L6) chondrite. The Yamato-75028 chondrite contains high concentrations of solartype rare gases. On the basis of rare gas data, two groups of paired meteorites were identified; they are Yamato-75097,-75102,-75108 and -75271,and Allan Hills-77015,-77167 and -77260.},
 pages = {264--275},
 title = {Rare gas studies of twenty-four antarctic chondrites},
 volume = {20},
 year = {1981}
}