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L1 Unit

• Type locality: Jigoku valley, Kasugano village, Nara city, Nara prefecture
• Volcanic rocks
• Pyroclastic flow deposit
• Miocene

• Sedimentary facies: Sediment gravity flow deposit, Fluvial deposit, High temperature pyroclastic flow deposit
• Lithofacies (Main): Massive, poorly-sorted, matrix-supported lapilli tuff and Tuff breccia
• Lithofacies (Minor): Mudstone, Sandstone, Tuff, Obsidian lens

• Thickness: 15 m
• Upper limit: Conformity
• Lower limit: Unconformity

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

• Distribution: Jigoku valley, Kasugano village, Nara city, Nara pref.

• Sato et al. (2015) Jour. Geol. Soc. Japan, vol.121, no.6, pp.173-178, DOI