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Older Stratovolcano
- Volcanic rocks
- Middle Pleistocene (0.5 Ma - 220 ka)
- Older Stratovolcano
- Rashirashizawa Lava
- Riheijaya Lava
- Kurobiyama Lava
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Gunma pref.
- Yamamoto (2016) Jour. Geol. Soc. Japan, vol.122, no.3, pp.109-126, DOI