Okudake Lava

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Okudake Lava

Volcanic rocks
Eruptive products in post-caldera stage
Central cone
Pleistocene

Sedimentary facies: Lava dome
Lithofacies: Quartz hypersthene olivine andesite lava

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.

Ozawa and Sumi (1957) Moriyoshiyama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 42p. (in Japanese with English abstract 5p.)