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Otchzawa Formation

Synonym: Occhizawa Formation

• Accretionary complex
• Accretion: Jurassic

• Sedimentary facies: Marine
• Lithofacies: Schalstein, Limestone
• Lithofacies (Minor): Chert

• Distribution (Width): ca. 0.5 km

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

• Distribution: Nogurizawa creek, Kanna city, Tano county, Gunma pref.; Fuji cave, Ueno city, Tano county, Gunma pref.
• Fossils (Limestone): Pseudofusulina sp.

• Hara et al. (2010) Geology of the Mitsumine District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 110p. (in Japanese with English abstract 4p.)
• Okubo and Horiguchi (1969) Geology of the Mamba District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 65p. (in Japanese with English abstract 5p.)