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Takisawa Formation

• Accretionary complex
• Accretion: ealy Miocene

• Sedimentary facies: Marine
• Lithofacies (Upper): Alkaline basalt lava, Micritic limestone, Chert, Shale, Tuffaceous shale
• Lithofacies (Upper, Minor): Tuff, Andesite tuff breccia
• Lithofacies: Chert, Shale, Micritic limestone

• Thickness: 250 - 600 m
• Thickness (Upper): ca. 50 - 400 m
• Thickness (Lower): ca. 100 - 250 m
• Upper limit: Conformity (Yoshizu Formation)
• Lower limit: Conformity (Sakasagawa Formation)

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

• Distribution: Shiinoo - Odatara - Utsunotani - Takiyo - Ubume, Shizuoka city, Shizuoka pref.; Megurizawa, Fujieda city, Shizuoka pref.
• Fossils (Biosparite): Bivalves, Foraminifera, Bryozoans, Calcareous algae
• Fossils (Limestone): Discoaster barbadiensis, Globorotalia sp.
• Fossils (Chert, Radiolarians): Stichocorys delmontensis
• Fossils (Shale, Radiolarians): Stichocorys delmontensis

• 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.)