[ Top ] [ Japanese ]

Ancient Sand Dune

• Type locality: Tottori city, Tottori prefecture
• Coherent formation
• Pleistocene

• Sedimentary facies: Terrestrial
• Lithofacies: Sand

• Upper limit: Volcanic ash soil (Sanbe-Kisuki Pumice Bed, 0.1 Ma; Aso-4 Tuff Bed, 90 ka; Daisen-Kurayoshi Pumice Bed, 55 ka; Aira-Tn Tuff Bed, 25ka)
• Upper limit: Unconformity (Recent Sand Dune)

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

• Distribution: Lake Koyamaike - Hamasaka - Oigosuribachi - Lake Tanegaike, Tottori city, Tottori pref.

• Sakiyama et al. (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.1-20 DOI
• Murayama et al. (1963) Tottorihokubu & Tottorinambu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 66p. (in Japanese with English abstract 8p.)