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Shimanto Belt (Ehara, 1926)

Synonym: Shimanto Supergroup, Shimanto Group, Shimanto Formation

Protolith of Sanbagawa Belt, Ryoke Belt

• Type locality: Shimanto river, Kochi prefecture
• Accretionary complex
• Deposition: Cretaceous - Neogene
• Deposition (Northern Shimant Belt of North Belt of Shimanto Belt): Early Cretaceous, Aptian - Late Cretaceous, Santonian
• Deposition (Middle Shimant Belt of North Belt of Shimanto Belt): Late Cretaceous, Coniacian - Maastrichtian
• Deposition (Southern Shimant Belt of North Belt of Shimanto Belt): Late Cretaceous, Maastrichtian
• Deposition (Akaishi mountains): Early Cretaceous, Albian - Paleocene (Radiolarians)
• Accretion: Neogene
• Correlation: Asemigawa Unit

• Sedimentary facies: Marine
• Lithofacies: Turbidite, Interbedded sandstone and mudstone, Mélange
• Lithofacies (Northern Shimant Belt of North Belt of Shimanto Belt): Allenitic sandstone, Interbedded sandstone and mudstone
• Lithofacies (Northern Shimant Belt of North Belt of Shimanto Belt, Olistostrome): Limestone, Chert
• Lithofacies (Middle Shimant Belt of North Belt of Shimanto Belt, Upper, Matrix): Mudstone
• Lithofacies (Middle Shimant Belt of North Belt of Shimanto Belt, Upper, Crusts): Basalt, Chert
• Lithofacies (Middle Shimant Belt of North Belt of Shimanto Belt, Lower): Sandstone with volcanic fragments, Interbedded sandstone and mudstone
• Lithofacies (Southern Shimant Belt of North Belt of Shimanto Belt): Mudstone mélange

• Upper limit: Butsuzo Tectonic Line (Chichibu Belt)
• Upper limit (central Kii peninsula): Omine-Odai Thrust (Southern Chichibu Belt)

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

• Distribution: Boso peninsula - southern Kanto - Akaishi mountains - Kii peninsula, southern Shikoku - southern Kyushu - Okinawa

• Ota et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.5, pp.329-347 DOI
• Ozaki and Sugiyama (2018) Geology of the Minobu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 169p. (in Japanese with English abstract 7p.)
• Tokiwa et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.7, pp.539-544 DOI
• Kikukawa et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.5, pp.313-329 DOI
• Tokiwa et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.12, pp.625-635, DOI
• Baba and Uchima (2016) Jour. Geol. Soc. Japan, vol.122, no.3, pp.127-132, DOI
• Yamaguchi et al. (2015) Jour. Geol. Soc. Japan, vol.121, no.4, DOI
• Sugiyama and Matsuda (2014) Geology of the Nanbu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 134p. (in Japanese with English abstract 5p.)
• Kitamura et al. (2014) Jour. Geol. Soc. Japan, vol.120, no.1, pp.11-21 DOI
• Ishihara et al. (2014) Jour. Geol. Soc. Japan, vol.120, Supplement, pp.41-62 DOI
• Anma et al. (2014) Jour. Geol. Soc. Japan, vol.120, Supplement, pp.101-125 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.)
• Saruta and Takahashi (2012) Jour. Geol. Soc. Japan, vol.118, no.1, pp.53-58 DOI
• Tsujino et al. (2010) Jour. Geol. Soc. Japan, vol.116, no.12, pp.680-685 DOI
• Otoh et al. (2010) Jour. Geol. Soc. Japan, vol.119, No.2, pp.333-346 DOI
• 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.)
• Takashimizu (2009) Jour. Geol. Soc. Japan, vol.115, no.11, pp.559-577 DOI
• Kiminami et al., (2009) Jour. Geol. Soc. Japan, vol.115, no.11, pp.578-596 DOI
• Kurihara and Hara (2008) Jour. Geol. Soc. Japan, vol.114, no.2, pp.92-95 DOI
• Kiminami et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.1, pp.31-42 DOI
• Hara et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.2, pp.73-76 DOI
• Makimoto et al. (1996) Geology of the Takato District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 6p.)
• Sugiyama and Shimokawa (1990) Geology of the Shimizu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 103p. (in Japanese with English abstract 8p.)
• Kawachi et al. (1983) Geology of the Ichinose District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)
• Kawachi (1974) Geology of the Tateshinayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 5p.)