@article{oai:nipr.repo.nii.ac.jp:00002129, author = {Mayeda, Toshiko K. and Clayton, Robert N. and Yanai, Keizo}, journal = {Memoirs of National Institute of Polar Research. Special issue}, month = {Mar}, note = {P(論文), Oxygen isotopic compositions are reported for seven carbonaceous chondrites, seven ordinary chondrites, two enstatite chondrites, three lunar meteorites, and twelve achondrites. Three of the achondrites (ALH-77081,Y-74063,and Y-74025) do not belong to known groups; the first two of these are related to Acapulco. Two L-group equilibrated ordinary chondrites (Y-75097 and Y-793241) contain xenoliths with isotopic compositions similar to H chondrites. Among the carbonaceous chondrites, the distinction between C1 and C2 chondrites is ambiguous.}, pages = {144--150}, title = {Oxygen isotopic compositions of several Antarctic meteorites}, volume = {46}, year = {1987} }