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K1

• Accretionary complex
• middle - late Eocene
• Intruded by: Acidic pyroclastic dikes

• Sedimentary facies: Marine
• Lithofacies: Mudstone
• Lithofacies (Minor): Mudstone-dominant interbedded sandstone and mudstone, Conglomerate, Gravel-bearing mudstone
• Sedimentary structures: Cross stratification

• Thickness: 150 - 800 m
• Sedimentary structures: Flute marks
• Paleocurrent: to South

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

• Distribution: Komori - Oze - Takayamadani valley - Kurozodani valley - Sasanose, Tanabe city, Wakayama pref.; Unehata, Shingu city, Wakayama pref.
• Fossils (Shellfishes): Acila (Truncacila) sp.
• Fossils: Trace fossils, Pipe rocks

• Tokuoka et al (1981) Geology of the Ryujin District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 69p. (in Japanese with English abstract 6p.)
• 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.)