Sunagohara caldera

Volcanic rocks
Pleistocene (ca. 0.3 Ma)

Distribution (Diameter): ca. 6 km

Sunagohara caldera
[ Upper ]
~~~~~~~~~~~~~~
Sunagohara Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Fukushima pref.

Yamamoto and Komazawa (2004) Geology of the Miyashita District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 71p. (in Japanese with English abstract 5p.)