@article{oai:nipr.repo.nii.ac.jp:00000891,
 author = {Kamaguchi, Akeji and Okano, Jun},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Feb},
 note = {P(論文), Preliminary measurements have been carried out on the isotopic compositions and contents of helium, neon and argon in Yamato-74190-01 (L). K-Ar age and exposure ages on the meteorite have been calculated as follows : K-Ar age (&acd;2.1 b. y.), exposure ages (24 and 22 m. y. in terms of ^3(He) and ^<21>(Ne) contents respectively). From the isotopic correlation diagram for neon and the isotopic ratio, ^<36>(Ar)/^<38>(Ar), it has been suggested that this meteorite contains almost the same quantity of trapped rare gases as cosmogenic ones.},
 pages = {225--228},
 title = {K-Ar Age of Yamato Meteorite, Yamato-74190-01(L)},
 volume = {8},
 year = {1978}
}