Takatama caldera

Volcanic rocks
Collapse caldera volcano
Miocene

Distribution (East-West): 15 km
Distribution (South-North): 12 km

Takatama caldera
[ Upper ]
~~~~~~~~~~~~~~
Takatama Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Fukushima pref.

Sakaguchi (1995) Geology of the Nihonmatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 4p.)