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Nijo Group

• Type locality: Mount Nijo, Nara prefecture - Osaka prefecture
• Volcanic rocks
• middle Miocene (16 - 13 Ma, Radiometric age)

• Sedimentary facies: Terrestrial
• Lithofacies: Volcanic rocks
• Lithofacies (Minor): Sandstone Conglomerate

• Thickness: 1,000 m or thicker
• Lower limit: Unconformity (Omichi Granite)

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

• Distribution: Mount Nijo, Nara pref. - Osaka pref.

• Sato et al. (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.53-69 DOI
• Yamashita et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.7, pp.340-352 DOI
• Shinjoe et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.7, pp.310-325 DOI
• Miyachi et al. (1998) Geology of the Osaka-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 113p. (in Japanese with English abstract 5p.)