Kuttara-4 Tephra

Abbr.: Kt-4

Volcanic rocks
Pleistocene (75 ka)

Kuttara volcano
[ Upper ]
~~~~~~~~~~~~~~
Kt-1 Tephra
~~~~~~~~~~~~~~
Kt-2 Tephra
~~~~~~~~~~~~~~
Kt-Tk Tephra
~~~~~~~~~~~~~~
Kt-3 Tephra
~~~~~~~~~~~~~~
Kt-Hy Tephra
~~~~~~~~~~~~~~
Kt-4 Tephra
~~~~~~~~~~~~~~
Kt-6 Tephra
~~~~~~~~~~~~~~
Kt-7 Tephra
~~~~~~~~~~~~~~
Kt-8 Tephra
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Ishikari lowland, Hokkaido
Distribution: Kowa, Atsuma city, Yufutsu county, Hokkaido

Nakagawa et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.7, pp.473-489 DOI