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Renkoji Formation (Otsuka, 1932) Takano, 1994
Invalid synonym: Renkoji Interbedded Formation, Misawa Formation, Mogusa Formation
- Sedimentary facies (Upper): Shore, Shallow marine
- Sedimentary facies (Middle): Mudflat, Inland bay (Brackish)
- Sedimentary facies (Lower): Fluvial
- Sedimentary facies: A cycle of regression - transgression sequence
- Lithofacies (Upper): Sands
- Lithofacies (Middle): Silt, Sands
- Lithofacies (Lower): Gravels
- Sedimentary structures (Upper): Parallel stratification, Trough cross-stratification, Planar cross-stratification, Low angle wdge-shaped cross-stratification (Swash cross-stratification)
- Sedimentary structures (Lower): Channel structure
- Thickness: ca. 30 - 50 m
- Thickness (Upper): 8.2 m or thicker
- Thickness (Middle): 21.2 m or thicker
- Thickness (Lower): 5 m
- Upper limit: Conformity (Inagi Formation), Unconformity (Terrace deposit)
- Lower limit: Conformity (Oyamada Formation)
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Hirayamajoshi Park, Hirayama, Hino city, Tokyo; Tamagawa river, Hinohoncho town - Hino, Hino city, Tokyo; Minamidaira, Hino city, Tokyo; Fuchu cliff, Fujimi town, Tachikawa city, Tokyo; Higashimotomachi town, Kokubunji city, Tokyo; Yaho, Kunitachi city, Tokyo; Nogaya, Machida city, Tokyo
- Fossils: Stegodon aurorae, Sharks, Echinoids, Shellfishes, Pollen (Metasequoia sp.), Foraminifera, Ostracods, Trace fossils
- Fossils (Middle): Crabs, Potamocorbula sp., Rapana venosa, Metasequoia sp., Juglans cinerea, Foraminifera, Ostracods, Pipe rocks
- Fossils (Plants): Juglans cinerea, Metasequoia sp.
- Tephra: TN
- Suzuki et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.7, pp.343-356, DOI
- Ueki et al. (2013) Geology of the Hachioji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 137p. (in Japanese with English abstract 6p.)
- Suzuki and Murata (2011) Jour. Geol. Soc. Japan, vol.117, no.7, pp.379-397 DOI
- Ueki and Sakai (2007) Geology of the Ome District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 189p. (in Japanese with English abstract 5p.)