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Nanatsumori Lava (Abe et al., 1976)

Invalid synonym: Nanatsumori Volcanic Rock

• Type locality: Mount Nanatsumori, Taiwa city, Kurokawa county, Miyagi prefecture
• Volcanic rocks
• Caldera volcano
• Pleistocene (2.0 Ma)
• Intruded in: Nanakita Formation, Miyatoko Tuff Member

• Sedimentary facies: Lava dome
• Lithofacies: Pyroxene dacite lava
• Lithofacies (Minor): Andesite lava

• Distribution (each dome): 0.1 - 0.4 km²

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

• Distribution: Mount Nanatsumori - Mount Takkomori - Mount Sasakura - Mount Nagakura - Mount Koyamori, Taiwa city, Kurokawa county, Miyagi pref.

• Miyamoto et al. (2013) Jour. Geol. Soc. Japan, vol.119, Supplement, pp.27-46 DOI
• Kitamura et al. (1983) Geology of the Yoshioka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 50p. (in Japanese with English abstract 5p.)