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Hongo Lahar Deposit

• Type locality: Hongo, Kamitakara village, Takayama city, Gifu prefecture
• Volcanic rocks
• Pleistocene (120 - 100 ka)

• Sedimentary facies: Terrestrial
• Sedimentary facies (Upper): Debris flow
• Sedimentary facies (Lower): Hyperconcentrated flow
• Lithofacies: Sands and gravels (Hornblende andesite - Dacite)

• Eruptive volume: 0.7 km³
• Thickness: 100 m or thinner
• Running distance: 90 km or more

• Distribution: Hongo, Kamitakara village, Takayama city, Gifu pref.; Tono, Kamioka village, Hida city, Gifu pref.; Inotani, Toyama city, Toyama pref.

• Koike et al. (1985) Jour. Geol. Soc. Japan, vol.91, no.10, pp.665-677.