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Hiedayama-Kabu Lava Nakano et al., 2002

Invalid synonym: Nukehirazawa Lava, Tsugadaira Lava, Hiedayama Lava

• Volcanic rocks
• Pleistocene (0.8 - 0.7 Ma; 0.77, 0.75 Ma, K-Ar)

• Lithofacies: Olivine hypersthene augite andesite, Hypersthene augite andesite
• Lithofacies: Andesite lava (more than 10 flow units), Pyroclastic rocks

• Thickness: ca. 300 m
• Thickness (A unit): ca. 5 - 30 m
• Upper limit: Unconformity (Hiedayama-Jobu Lava, Norikurazawa Lava)

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

• Distribution: Mount Hiedayama - Kanayamazawa creek - Hijikura, Otari city, Kitaazumi city, Nagano pref.

• Nagamori et al. (2010) Geology of the Kotaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 130p. (in Japanese with English abstract 4p.)
• Nakano et al. (2002) Geology of the Shiroumadake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 105p. (in Japanese with English abstract 5p.)