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Mitsugashira Lava

The scoria bed included is probably same as Hirasawa Scoria.

• Volcanic rocks
• Pleistocene

• Lithofacies: Hypersthene olivine augite andesite lava (more than 40 flow units), Agglomerate, Volcanic breccia, Scoria, Scoria flow deposit
• Lithofacies (Minor): Basalt

• Distribution (Width): ca. 5 km
• Thickness (A unit): 1 - 20 m
• Running distance: ca. 7.5 km
• Lower limit: Unconformity (Kannondaira Lava)

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

• Distribution: Mount Mitsugashira, Hokuto city, Yamanashi pref.; Izumi shrine, Hatokawa river, Hokuto city, Yamanashi pref.

• Kawachi (1977) Geology of the Yatsugatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 92p. (in Japanese with English abstract 4p.)