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Arimine Tunnel Lava

• Volcanic rocks
• Pleistocene (0.15 - 0.12 Ma)

• Lithofacies: Hornblende biotite hypersthene augite andesite lava

• Thickness: ca. 20 - 200 m or thicker
• Lower limit: Unconformity (Sugonokkoshi Andesite)

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

• Distribution: Arimine tunnel, Toyama city, Toyama pref.

• Nakano et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.37-48 DOI
• Harayama et al. (2000) Geology of the Tateyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 218p. (in Japanese with English abstract 6p.)