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Ma 8

• Coherent formation
• Pleistocene

• Sedimentary facies: Marine
• Sedimentary facies: Inner bay
• Lithofacies: Clay

• Host: Shodai Formation, Manchidani Formation, Hacchoike Member, Shinkori Formation, Tanaka Formation, Upper Most part of Osaka Group

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

• Distribution: Mount Machikaneyama, Osaka pref.
• Tephra: Kasuri

• Hongo (2009) Jour. Geol. Soc. Japan, vol.115, no.2, pp.64-79 DOI
• Miyachi et al. (2005) Geology of the Kyoto-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 90p. (in Japanese with English abstract 4p.)
• Huzita and Kasama (1982) Geology of the Osaka-Seihokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 8p.)