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S3

• Accretionary complex
• middle - late Eocene

• Sedimentary facies: Marine
• Lithofacies: Mudstone-dominant interbedded sandstone and mudstone
• Lithofacies (Minor): Conglomerate, Gravel-bearing mudstone
• Sedimentary structures: Current ripples
• Paleocurrent: from Southwest - Northeast

• Thickness: 50 - 750 m or thicker

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

• Distribution: Kozagawa river - Ui, Kozagawa city, Higashimuro county, Wakayama pref.; Samotogawa river - Shishimetoge pass, Susami city, Nishimuro county, Wakayama pref.; Takogo, Kushimkoto city, Higashimuro county, Wakayama pref.
• Fossils (Shellfishes): Costacallista cf. shikokuensis, Portlandia sp., Venericardia tokunagai

• Tateishi et al. (1979) Geology of the Esumi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 65p. (in Japanese with English abstract 6p.)