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Sanozaka Collapse Deposits Kato et al., 1989

• Type locality: Sanozaka, Omachi city - Hakuba city, Kitaazumi county, Nagano prefecture
• Coherent formation
• early Pleistocene (before 0.1 Ma)

• Sedimentary facies: Mudflow deposit
• Lithofacies: Breccia

• Volume: 0.02 km³
• Lower limit: Unconformity (Omine Formation, Kizaki Formation, Kizaki Rhyolite)

• Distribution: Sanozaka, Omachi city - Hakuba city, Kitaazumi county, Nagano pref.

• Kato et al. (1989) Geology of the Omachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 7p.)