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Hanzoyama Andesite

• Volcanic rocks
• Miocene (15.3 Ma, K-Ar)

• Sedimentary facies: Lava dome, Shallow intrusion facies
• Lithofacies: Pyroxene andesite lava, Lapilli tuff

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

• Distribution: Mount Hanzo, Utsunomiya city, Tochigi pref.

• Yoshikawa et al. (2010) Geology of the Utsunomiya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 79p. (in Japanese with English abstract 6p.)