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Anden Sand Member (Kitazato, 1975) Shiraishi and Takeuchi, 1999

Invalid synonym: Anden Formation

• Type locality: Anden seashore, Iriai, Oga city, Akita prefecture
• Coherent formation
• Pleistocene
• Contemporaneous heterotopic facies: Kakumazaki Mud Member, Matsukizawa Sand and Gravel Member

• Sedimentary facies: Marine
• Sedimentary facies: Offshore
• Lithofacies: Sands, Gravels

• Thickness: 10 m or thicker
• Lower limit: Unconformity (Shibikawa Formation)

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

• Distribution: Anden seashore, Iriai, Oga city, Akita pref.
• Fossils: Patinopecten yessoensis, Turritella andenensis, Fuscocardium braunsi, Teredo sp., Pipe rocks
• Tephra: Toya, Aso-4

• Shiraishi et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.33-50 DOI
• Fujimoto et al. (2008) Jour. Geol. Soc. Japan, vol.114, Supplement, pp.51-74 DOI