Middle Karitasan Lava

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Middle Karitasan Lava Shimada, 1964

Type locality: Karitasan querry, Takayama city, Kamitakai county, Nagano prefecture
Volcanic rocks
Pliocene (2.77 Ma, K-Ar)

Lithofacies: Pyroxene andesite lava

Thickness: ca. 150 m
Upper limit: Unconformity (Upper Karitasan Lava)
Lower limit: Unconformity (Lower Karitasan Lava)

Karitasan Volcanic Rocks
[ Upper ]
~~~~~~~~~~~~~~
Asahiyama Lava
~~~~~~~~~~~~~~
Iizunayama Lava
~~~~~~~~~~~~~~
Toyabasan Lava
~~~~~~~~~~~~~~
Upper Karitasan Lava
~~~~~~~~~~~~~~
Middle Karitasan Lava
~~~~~~~~~~~~~~
Lower Karitasan Lava
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Karitasan querry - Komaba, Takayama city, Kamitakai county, Nagano pref.; Sakurasawa, Nakano city, Nagano pref.

Akahane et al. (1992) Geology of the Nakano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 106p. (in Japanese with English abstract 4p.)