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Yamagasu Group, Iizuka, 1931

• Type locality: Yamagasu, Soni city, Uda county, Nara prefecture
• Coherent formation
• early - middle Miocene

• Lithofacies (Main): Sandstone, Mudstone
• Lithofacies (Bottom): Conglomerate

• Upper limit: Unconformity (Soni Group)
• Lower limit: Unconformity (Ryoke Belt)

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

• Distribution: Yamagasu, Soni city, Uda county, Nara pref. - Mount Obora, Misugi village, Tsu city, Mie pref.

• Sato et al. (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.53-69 DOI