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1@{“¡ –Î, ‰F“s _ŽO, “àŠC –Î@i1990jåŠâ’n”M’nˆæ“ì•”C“û“ªE‚‘q‰ÎŽRŒQ•¬o•¨‚ÌK-Ar”N‘ã. ’nŽ¿’²¸ŠŒŽ•ñC41C395-404.@Suto, S., Uto, K. and Uchiumi, S. (1990)K-Ar ages of the Nyuto-Takakura volcanic products, southern part of the Sengan geothermal area, northeast Japan. Bull. Geol. Surv. Japan, vol. 41970, 395-404. 931
2@‚‰ª é—Y, ¡“c ³, ‘åê —^Žu’j, ¡–ì Kˆê, ”Ñ“c ”ü•ä, {“¡ O, ”¼‘ò Œb“ñ, “ìŠÙ —Li1988j•S–œ”N‚æ‚èŽá‚¢‰ÎŽRŠâ‚Ì‚j|‚`‚’”N‘㑪’è.@•¶•”ȉȊwŒ¤‹†”ï•â•‹à‘‡Œ¤‹†i‚`jŒ¤‹†¬‰Ê•ñ‘iº˜a62”N“xjŒ¤‹†‰Û‘è”Ô†60303011Cp.1-43.@Takaoka, N. et al.(1988) Absolute age datings of volcanic rocks younger than 1Ma. in 'Res. Rep.Monbusho Sci. Res. Program General Research (A)"Absolute age datings of volcanic rocks younger than 1Ma"', 1-43. 975