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Katayama Lava

• Type locality: Katayama, Kofu city, Yamanashi prefecture
• Volcanic rocks
• more than 50 monogenetic volcanos
• Pliocene
• Intruded in: Toiwa Pyroclastic Flow Deposit

• Sedimentary facies: Terrestrial
• Sedimentary facies (Minor): Dykes
• Lithofacies: Augite hypersthene andesite lava

• Thickness (A unit): Several - 30 m
• Distribution (Dykes, Width): 20 - 30 m
• Distribution (Dykes, Length): ca. 1,700 m
• Upper limit: Conformity? (Kubodaira Mudflow Deposit)
• Lower limit: Conformity? (Toiwa Pyroclastic Flow Deposit), Unconformity (Yamaguchi Pumice Tuff)

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Katayama, Kofu city, Yamanashi pref.; Otomekogen, Yamanashi city, Yamanashi pref.; Kamezawa river, Kai city, Yamanashi pref.
• Distribution (Dykes): Toryuiwa, Mitakeshosenkyo, Kofu city, Yamanashi pref.

• Mimura et al. (1984) Geology of the Mitake-Shosenkyo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 61p. (in Japanese with English abstract 4p.)