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Yb2 ƒeƒtƒ‰ “¿‹´‚Ɖ““¡, 1984
Yb2 Tephra Tokuhashi and Endo, 1984
ѻΐ: Yb2
ƒeƒtƒ‰
XV¢
Šâ‘Š: ƒXƒRƒŠƒA
•êŠâ:
åM‘w
‘wŒú: –ñ0 - 5 cm
•ª•z: ç—tŒ§ –ØX’ÃŽs h (‚â‚Ç)
“¿‹´‚Ɖ““¡ (1984) Žoè’nˆæ‚Ì’nŽ¿, ’nˆæ’nŽ¿Œ¤‹†•ñ (5–œ•ª‚Ì1’nŽ¿}•), ’nŽ¿’²¸Š, 136p.