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Yatsuyama Formation

Invalid synonym: Shitoizaka Formation

• Type locality: Mount Yatsuyama, Aoi ward, Shizuoka city, Shizuoka prefecture
• Coherent formation
• Miocene

• Sedimentary facies: Marine
• Lithofacies: Turbidite
• Lithofacies (Upper, Minor): Sandstone
• Lithofacies: Sandstone-dominant interbedded sandstone and mudstone
• Sedimentary structures: Parallel stratification, Graded bedding, Flute marks, Load cast, Parting lineation
• Paleocurrent: North to South (N20W - N10E)

• Thickness: ca. 430 m

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

• Distribution: Mount Yatsuyama, Aoi ward, Shizuoka city, Shizuoka pref.

• Sugiyama et al. (1982) Geology of the Shizuoka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 82p. (in Japanese with English abstract 9p.)