[ Top ] [ Japanese ]

Iw-ph6 Tephra Ito et al., 2018

Invalid synonym: PHD 4

• Phreatic eruption deposit
• Holocene (3.8 - 3.6 cal ka, ¹⁴C)

• Sedimentary facies: Terrestrial
• Lithofacies: Argilliceous volcanic ash

• Source: Ojigokudani valley
• Thickness: 2.5 cm

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

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

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