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Ninomegata maar

• Type locality: Togashiohama, Oga city, Akita prefecture
• Maar volcano
• Volcanic rocks
• End of Pleistocene (Oldest maar among 3 maars)

• Sedimentary facies: Pyroclastic surge deposit
• Lithofacies: Eruption products are not identified.

• Distribution (Diameter): ca. 0.6 km at the maximum

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

• Distribution: Togashiohama, Oga city, Akita pref.

• Kano et al. (2011) Geology of the Toga and Funakawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 127p. (in Japanese with English abstract 4p.)
• Satsukawa and Michibayashi (2009) Jour. Geol. Soc. Japan, vol.115, no.6, pp.288-291 DOI
• Ohguchi et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.17-32 DOI
• Fujimoto et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.51-74 DOI