[ Top ] [ Japanese ]

Iw-W8b Tephra Ito et al., 2018

• Magmatic eruption deposit
• Holocene (7.9 - 7.7 cal ka, ¹⁴C)

• Sedimentary facies: Terrestrial
• Lithofacies: Scoria, Tuff

• Thickness: 10 - 44 cm

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

• Distribution: Umagaeshi, Mount Yakushi, Mount Iwate, Iwate pref.

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