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Taiheizan Pyroclastic Fall Deposits Suzuki et al., 1968

• Type locality: Higashinohara - Tsunoitoge pass, Sanbe town, Oda city, Shimane prefecture
• Tephra
• Holocene (4,910, 3,680 yBP, ¹⁴C)

• Lithofacies: Volcanic ash, Volcanic lapilli, Volcanic gravels (more than 40 fall units)
• Sedimentary structures: Graded bedding
• Sedimentary structures (Minor): Reversed-graded bedding

• Source: Muronouchi crater of Mount Sanbesan
• Thickness: ca. 5 - 90 m
• Lower limit: Interfingered (Taiheizan Pyroclastic Flow Deposits), Unconformity (Sanbe Lava Dome)

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

• Distribution: Higashinohara - Tsunoitoge pass - Taiheizan Pyroclastic Cone - summit of Mount Osanbesan - summit of Mount Hikageyama - Sukumozuka, Sanbe town, Oda city, Shimane pref.

• Kano et al. (1998) Geology of the Iwami-Oda and Oura District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 118p. (in Japanese with English abstract 5p.)
• Hattori et al. (1983) Geology of the Sambesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 168p. (in Japanese with English abstract 7p.)