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2023-03-08T01:36:29Z
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Radiometric age of lava flows of the Enrei formations in central Japan (1).
MOMOSE, KAN'ICHI
KOBAYASHI, KUNIO
YAMADA, TETSUO
OZIMA, MINORU
KANEOKA, ICHIRO
Two samples from lava flows of the upper member of the Lower Enrei formations exposed at the top of Utsukushi-ga-hara volcano are dated approximately at 1.3 × 10v K-A years. The dates of these lava flows which are magnetized reversely and eastward are placed in the middle part of the Matuyama reversed epoch. The Ina formations equivalent of the Lower member of the Lower Enrei formations suggest that during this period climatic deterioration had already taken place, so that most parts of the Enrei formations should be younger than the base of the Pleistocene.
Article
信州大学理学部紀要 1(2): 93-96(1967)
信州大学理学部
1967-03-15
eng
departmental bulletin paper
VoR
http://hdl.handle.net/10091/10409
https://soar-ir.repo.nii.ac.jp/records/12290
0583-063X
AA00697923
信州大学理学部紀要
1
2
93
96
https://soar-ir.repo.nii.ac.jp/record/12290/files/Science01-02-03.pdf
application/pdf
241.9 kB
2015-09-28