[ Top ] [ Japanese ]

East Unit

• Accretionary complex
• Accretion: Permian

• Sedimentary facies: Marine
• Lithofacies: Coherent facies (Chert-clastic sequence)
• Lithofacies (Upper): Sandstone
• Lithofacies (Middle): Mudstone
• Lithofacies (Lower): Interbedded felsic tuff and mudstone
• Sedimentary structures (Sandstone): Graded bedding, Cross stratification, Parallel stratification

• Thickness: 600 m or thicker
• Upper limit: Thrust fault
• Lower limit: Thrust fault

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

• Distribution: Itoigawa city, Niigata pref.
• Fossils: Radiolarians

• Nagamori et al. (2010) Geology of the Kotaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 130p. (in Japanese with English abstract 4p.)
• Takeuchi et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.123-142 DOI