[ Top ] [ Japanese ]

Iw-ph8 Tephra Ito et al., 2018

• Phreatic eruption deposit
• Holocene (5.5 - 5.1 cal ka, ¹⁴C)

• Sedimentary facies: Terrestrial
• Lithofacies: Argilliceous volcanic ash

• Source: Mount Yakushidake
• Thickness: 1.0 cm

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

• Distribution: Iwate Kogen; Omisaka slope, Mount Yakushidake, Mount Iwate, Iwate pref.

• Itoh et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.4, pp.271-296 DOI