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List of geological units in Tokushima prefecture

A list of stratigraphic units, igneous bodies, and geological structures reported from Tokushima prefecture, Shikoku region, Shikoku island, Japan.

Photographs of geological units in Tokushima prefecture

Silurian (443.4-419.2 Ma)
Kurosegawa Belt
Suberidani Group
G3
Devonian (419.2-358.9 Ma)
Mitaki granites
Terano metamorphic rocks
Kurosegawa Belt
Suberidani Group
G4
Permian (298.9-252.17 Ma)
Kurosegawa belt
Haigyu group
Triassic (252.17-201.3 Ma)
Kurosegawa Belt
Kawachigadani Group
Sabutani Formation
Triassic-Jurassic
Kamiyama group
Triassic-Jurassic-Cretaceous
Southern Chichibu belt
Northern Shimanto belt
Jurassic (201.3-145.0 Ma)
Northern Chichibu belt
Tsurugisan formation?
Middle Chichibu belt
Nakaizu formation
Mikabu greenstones
Torinosu limestone
Kurosegawa Belt
Sakashu Group
Kurisaka Formation
Hirose Formation
Cretaceous (145.0-66.0 Ma)
Sanbagawa Metamorphic Rocks
Besshi Eclogite Unit
Ojoin Formation
Minawa Formation
Oboke Unit
Koboke Formation
Kawaguchi Formation
Nonowaki formation
Yakeyama formation
Kashidaira formation
Kawatayama formation
Kotsu formation
Kawata formation
Tatsukawa formation
Hanoura Formation
Hoji formation
Fujikawa formation
Shimanto belt
Akimaru formation
Akamatsu formation
Sanza formation
Tainohama formation
Oi formation
Kumo formation
Hegawa formation
Shiwaki formation
Izaritoge formation
Yukizakatoge formation
Northern Shimanto Belt
Tochidani Formation
Naruse Formation
Furuya Formation
Hinodani Formation
Osodani Formation
Taniyama Formation
Hiwasa Formation
Mugi Mélange
Upper section
Unit 6
Unit 5
Unit 4
Izumi Group
Northern margin facies
Seidan Formation
Main facies
Anaga Formation
Bandodani Formation
Osaka Formation
Oyamahata Formation
Miyagatani Formation
Izumitani Formation
Kawamata Formation
Gosho Formation
Higaidani Formation
Horita Formation
Takikubo Formation
Paleogene
Northern Shimanto Belt
Mugi Mélange
Lower section
Unit 3
Unit 2
Unit 1
Kainan Formation
Eocene-Oligocene
Southern Shimanto belt
Murotohanto group
Pleistocene (2.58- 0.01Ma)
Kitajima Formation
Ideguchi tuff bed (Okubodani tuff bed)
Aira-Tn tuff bed
Dochu formation
Dochu tuff bed
Nagate tephra
Pleistocene-Holocene
Tokushima Formation
Holocene (0.01-0 Ma)
Kikai-Akahoya tuff bed
Investigation in progress
Nakagawa group
Geological structures
Sakashu thrust fault
Junisha thrust fault
Jiganji fault
Median tectonic line
Chichio fault
Mikabu tectonic line
Butsuzo tectonic line
Aki tectonic line
Oboke anticline