Ichihasama Pumice

Tephra
Pleistocene (0.12 - 0.11 Ma, TL; 0.15, 0.13 Ma, FT)

Lithofacies:

Naruko volcano
[ Upper ]
~~~~~~~~~~~~~~
Lava domes
~~~~~~~~~~~~~~
Irisawa Formation
~~~~~~~~~~~~~~
Yanagisawa Tuff
~~~~~~~~~~~~~~
Nizaka Tuff
~~~~~~~~~~~~~~
Ichihasama Pumice
~~~~~~~~~~~~~~
Iwadeyama Pumice
~~~~~~~~~~~~~~
[ Lower ]

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Miyagi pref.

Tsuchiya et al. (1997) Geology of the Iwagasaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 96p. (in Japanese with English abstract 4p.)