@article{oai:nipr.repo.nii.ac.jp:00001568,
 author = {Onuma, Naoki and Ikeda, Yukio and Mayeda, T.K. and Clayton, R.N. and Yanai, Keizo},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Dec},
 note = {P(論文), Several inclusions from the Antarctic unequilibrated ordinary chondrites (ALH-764 (LL3), ALH-77015 (L3) and Y-790448 (L3)) were excavated and their petrography, chemical and oxygen isotopic compositions were determined. The coherent data indicates that precursors of the ordinary chondrites consist of a mixture of two different solid materials. One is a pre-existing solid enriched in albite component and depleted in ^<16>O component and the other is a solid depleted in albite component and enriched in ^<16>O component. The latter solid material may be an evaporation residue of the former solid material in an ambient gas.},
 pages = {306--314},
 title = {Oxygen isotopic compositions of petrographically described inclusions from Antarctic unequilibrated ordinary chondrites},
 volume = {30},
 year = {1983}
}