scholarly journals Quaternary Tephra Studies in the Kanto-Chubu Districts, Central Japan. Significance of Middle Pleistocene Tephra Layers.

1991 ◽  
Vol 30 (5) ◽  
pp. 361-368 ◽  
Author(s):  
Takehiko SUZUKI ◽  
Kenji HAYATSU
1996 ◽  
Vol 35 (4) ◽  
pp. 339-345 ◽  
Author(s):  
N. Saito ◽  
The“Crystal Ash” Layers

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