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Older Debris Avalanche Deposits

• Coherent formation
• Holocene (before AD 1858)

• Sedimentary facies: Debris avalanche deposit
• Sedimentary facies (Upper, Minor): Lahar deposit, Fluvial
• Lithofacies: Sands, Gravels

• Thickness: 100 m or thicker

• Distribution: Lake Dojoike - Yukawadani valley - Lake Karikomiike - Shinyu hotspring - Matsuodani valley - Arimine tunnel, Tateyama city, Nakaniikawa county, Toyama pref.

• Harayama et al. (2000) Geology of the Tateyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 218p. (in Japanese with English abstract 6p.)