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K3

• Accretionary complex
• middle - late Eocene
• Intruded by: Quartz porphyry dikes

• Sedimentary facies: Marine
• Lithofacies: Mudstone, Mudstone-dominant interbedded sandstone and mudstone
• Lithofacies (Minor): Sandstone-dominant interbedded sandstone and mudstone, Sandstone, Conglomerate
• Sedimentary structures: Parallel stratification, Scour-fill cross-stratification, Slump structures, Current marks

• Thickness: ca. 400 - 1,300 m

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

• Distribution: Hokusogi - Yomuragawa river - Otogawa river, Tanabe city, Wakayama pref.; Unehata, Shingu city, Wakayama pref.
• Fossils (Shellfishes): Costacallista? sp.
• Fossils (Trace fossils): Paleodictyon isp.

• Suzuki et al (1979) Geology of the Kurisugawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 54p. (in Japanese with English abstract 5p.)