@article{oai:nipr.repo.nii.ac.jp:00001571,
 author = {Nishimura, Hiroshi and Okano, Jun},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Dec},
 note = {P(論文), Isotopic ratios of ^<24>(Mg)/^<25>(Mg) and ^<26>(Mg)/^<25>(Mg) have been measured for Mg-rich and Al-poor portions of matrix areas of ALH-77278 and -77307 meteorites by ion microprobe mass spectrometry. The magnesium isotopic ratios for the meteorites were compared with that for a terrestrial forsterite of laboratory standard. Clear excesses of ^<24>(Mg) up to 10 permil have been found for the portions where concentration ratio of Al/Mg was less than 0.1 and that of Mg/Si was between 1.8 and 2.2.},
 pages = {332--340},
 title = {SIMS measurement of magnesium isotopic ratios in ALH-77278 and -77307 chondrites},
 volume = {30},
 year = {1983}
}