@article{oai:soar-ir.repo.nii.ac.jp:00012272,
 author = {KOBAYASHI,  KUNIO and MINAGAWA,  KOICHI and MACHIDA,  MIZUO and SHIMIZU,  HIDEKI and KITAZAWA,  KAZUO},
 issue = {2},
 journal = {信州大学理学部紀要},
 month = {Mar},
 note = {An extensive sheet of the pumice-fall deposit Pm-I erupted from Ontake volcano in central Japan covers the areal extent of over 1.5×10t  k㎡. At the type locality in the Ina valley, the pumice is situated in the lower part of the Middle Loam unit of Shinshu Loam formations, whereas in South Kanto it is embedded within the Shimosueyoshi Loam unit. Though no absolute ages are yet available for this pumice-fall deposit, the Pm-I must be one of the most excellent time-markers and also a valuable long-distance key bed within the Late Quaternary sections in central Japan. Former interpretations as to the stratigraphic and topographic situations of the Musashino upland would more or less be improved by this time-marker., Article, 信州大学理学部紀要 3(2): 171-198(1969)},
 pages = {171--198},
 title = {The Ontake Pumice-Fall Deposit Pm-I as a Late Pleistocene Time-Marker in Cental Japan},
 volume = {3},
 year = {1969}
}