Later stage

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Later stage

Type locality: Mount Moriyoshi, Kitaakita city, Akita prefecture
Volcanic rocks
Eruptive products in post-caldera stage
Pleistocene (0.79 Ma, K-Ar)

Sedimentary facies: Lava dome, Lava flow
Lithofacies: Basalt, Andesite, Dacite

Eruptive volume: 2 km³

Later stage
[ Upper ]
+__+__+__+__+_
Okudake Lava
~~~~~~~~~~~~~~
Tachigamori Lava
~~~~~~~~~~~~~~
Hibakuradake Lava
~~~~~~~~~~~~~~
Bunatai Lava
~~~~~~~~~~~~~~
[ Lower ]

Moriyoshi volcano
[ Upper ]
+__+__+__+__+_
Later stage
~~~~~~~~~~~~~~
Earlier stage
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Mount Moriyoshi, Kitaakita city, Akita pref.

Kano et al. (2012) Geology of the Aniai District, 2nd Edition, 1:50,000 Quadrangle Series, Geological Survey of Japan, AIST, 59p. (in Japanese with English abstract 4p.)