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Itami Formation Watabe et al., 1952

• Coherent formation
• Pliocene

• Sedimentary facies: Marine, Products of submarine volcanoes
• Lithofacies: Sandstone, Conglomerate
• Lithofacies (Bottom): Conglomerate
• Sedimentary structures: Cross-stratification

• Thickness: ca. 100 m
• Upper limit: Transitional (Harada Formation)
• Lower limit: Unconformity (Pyroxene andesite)

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

• Distribution: Shirahama seashore, Shimoda city, Shizuoka pref.
• Fossils: Shellfishes

• Sawamura et al. (1970) Geology of the Shimoda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 41p. (in Japanese with English abstract 4p.)