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Older Josho Lake Deposit Iijima, 1969

• Type locality: Muroga elementary school, Muroga, Ueda city, Nagano prefecture
• Coherent formation
• Pleistocene

• Sedimentary facies: Lacustrine
• Lithofacies: Mudstone, Interbedded sandstone and conglomerate, Sandstone, Conglomerate
• Lithofacies (Basal): Conglomerate
• Lithofacies (Minor): Peat

• Thickness: 10 - 30 m
• Upper limit: Unconformity (Younger Josho Lake Deposit)
• Lower limit: Unconformity (Aoki Formation, Uchimura Formation, Bessho Formation, Iseyama Formation, Nunobiki Formation)

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

• Distribution: Miyoshi - Muroga - Komaki - Kabatake - Maeyama - Hirai - Shioda - Wadegumi - Oshikiri - Oka - Oya - Sangawa river - Yugawa river - Urano river, Ueda city, Nagano pref.; Shiokawa, Maruko Town, Ueda city, Nagano pref.; Tanaka, Tobu town, Tomi city, Nagano pref.
• Tephra: Zensanji

• Suzuki (2008) Jour. Geol. Soc. Japan, vol.114, no.10, pp.536-539 DOI
• Suzuki (2008) Jour. Geol. Soc. Japan, vol.114, no.1, pp.43-46 DOI
• Kato (1980) Geology of the Sakaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 57p. (in Japanese with English abstract 5p.)
• Iijima et al. (1969) Jour. Geol. Soc. Japan, vol.23, no.2, pp.63-72 DOI