[ Top ] [ Japanese ]

Volcanic Fan III Deposit Kano et al., 2025

Invalid synonym: Volcanic Fan 4 Deposit, Kishimoto Formation

• Type locality: Shojingawa river, Daisen city, Saihaku county, Tottori prefecture
• Volcanic rocks
• middle Pleistocene (MIS 4)

• Sedimentary facies: Debris flow deposit
• Sedimentary facies: Reworked deposits of Makibara Pyroclastic Flow Deposit
• Lithofacies: Gravels, Sands

• Thickness: 20 - 30 m
• Upper limit: Conformity (Eolian deposit intercalating AT tephra)
• Lower limit: Unconformity (Older Volcanic Fan Deposit, Makibara Pyroclastic Flow Deposits)

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

• Distribution: Shojingawa river, Daisen city, Saihaku county, Tottori pref.; Odaka, Yonago city, Tottori pref.; Hayashigahara - Ueno - Kanayadani, Hoki city, Saihaku county, Tottori pref.

• Kano et al. (2025) Geology of the Yonago District (2nd Ed.), Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 84p. (in Japanese with English abstract 4p.)
• Yamamoto (2017) Bull. Geol. Surv. Japan, vol.68, no.1, pp.1-16 DOI