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Hidakagawa Group

Synonym: Hidakagawa Belt, Hiradani Group

• Accretionary complex
• Cretaceous
• Intruded by: Dacite dikes

• Sedimentary facies: Marine

• Thickness: ca. 8,600 m
• Upper limit: Thrust fault (Osako Tectonic Line, Sanjogadake Group), Yanase Fault, Ui Thrust fault
• Lower limit: Gobo-Totsukawa Thrust fault, Hatenashi Thrust fault

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

• Distribution: Wakayama prefecture

• Ota et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.5, pp.329-347 DOI
• Shimura et al. (2017) Jour. Geol. Soc. Japan, vol.123, no.11, pp.925-937 DOI
• Tokiwa et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.12, pp.625-635, DOI
• Yao (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.90-106 DOI
• Tokiwa et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.6, pp.270-273 DOI
• Shiida et al. (1989) Geology of the Sanjogatake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 100p. (in Japanese with English abstract 5p.)
• Tokuoka et al (1981) Geology of the Ryujin District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 69p. (in Japanese with English abstract 6p.)