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Katata Formation Ikebe, 1960

• Type locality (Upper): western bank of Kisengawa river, Shiga, Otsu city, Shiga prefecture
• Type locality (Lower): Setogawa river, Ikadachi, Otsu city, Shiga prefecture
• Coherent formation
• Pleistocene (1.4 - 0.3 Ma)
• Correlation: Hata Formation, Akatsukikaido Member, Osaka Group

• Sedimentary facies: Terrestrial
• Sedimentary facies: Lacustrine, Fluvial
• Sedimentary facies (Minor): Marine clay
• Sedimentary facies (Upper): Alluvial fan
• Sedimentary facies (Middle): Sandy meandering river
• Sedimentary facies (Lower): River mouth delta
• Lithofacies: Clay, Silt, Sands, Gravels
• Lithofacies (Upper): Gravels
• Lithofacies (Upper, Minor): Sands, Silt, Tree roots
• Lithofacies (Lower): Mud, Sands, Gravels
• Lithofacies (Lower, Minor): Vivianite
• Sedimentary structures (Lower): Trough cross-stratificaiton, Planar cross-stratification, Concave cross-stratification, Graded bedding

• Thickness: ca. 390 - 500 m
• Thickness (Upper): 50 m or thicker
• Thickness (Lower): 340 m or thicker
• Upper limit: Unconformity (Higher Terrace Deposits)
• Lower limit: Unconformity (Tamba Belt)

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

• Distribution: Katata - Kisangawa river - Ogi, Otsu city, Shiga pref.; Setogawa river, Ikadachi, Otsu city, Shiga pref.
• Fossils: Mammuthus protomammonteus, Stegodon orientalis
• Fossils (Katata fauna I): Alocinma longicornis, Anodonia sp., Cristaria plicata, Heterogen longispira, Inversidens hirasei, Kobiwakodonta sp., Lanceolaria grayana, Semisulcospira (Biwamelania) sp., Unio (Nodularia) biwae, Unio (Nodularia) douglasiae
• Fossils (Katata fauna II): Anodonta (Sinanodonta) calipygos, Cipangopaludina japonica, Corbicula leana, Corbicula sandai, Cristaria plicata, Heterogen longispira, Inversidens brandti, Inversidens hirasei, Inversidens japonensis, Invesidens reinianus, Kobiwakodonta sp., Lanceolaria grayana, Lanceolaria oxyhyncha, Limnoscapha (Nipponihyria) schlegeli, Semisulcospira (Biwamelania) habei, Unio (Nodularia) biwae, Unio (Nodularia) douglasiae
• Fossils (Plants): Menyanthes trifoliata, Metasequoia sp., Picea cf. bicolorPicea maximowiczii, Pinus koraiensis, Trapa macropoda
• Tephra: Kurihara II Tephra, Kurihara III Tephra, Kisen Tephra, Biotite I Tephra, Biotite II Tephra, C Tephra, D Tephra, E Tephra, F Tephra

• Wakita et al. (2013) Geology of the Kyoto-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 124p. (in Japanese with English abstract 3p.)
• Satoguchi et al. (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.70-78 DOI
• Yoshida et al. (2003) Geology of the Omi-Hachiman District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 72p. (in Japanese with English abstract 3p.)
• Kimura et al. (2001) Geology of the Kitakomatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 102p. (in Japanese with English abstract 5p.)
• Kimura et al. (1998) Geology of the Kyoto-Tohokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 89p. (in Japanese with English abstract 5p.)
• Ishida et al. (1984) Geology of the Hikone-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 6p.)