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List of geological units in Hiroshima prefecture

A list of stratigraphic units, igneous bodies, and geological structures reported from Hiroshima prefecture, Chugoku region, Honshu island, Japan.

Photographs of geological units in Hiroshima prefecture

Silurian-Carboniferous
Sangun metamorphic rocks
Tsuno group
Carboniferous (358.9-298.9 Ma)
Taishakugawa group
Eimyoji formation (Eimyoji limestone)
Dangyokei formation
Idaniyama formation
Upper member
Lower member
Carboniferous-Permian
Akiyoshi Belt
Kawai Limestone
Permian (298.9-252.17 Ma)
Maizuru Belt
Central zone
Karita Formation
Hachimandai Formation
Yoshiwa Group
Nishiki group
Yoshii group
Yamano group
Taishaku group
Unoyama formation
Oshigatani formation
Zenbutsujidani formation
Udo formation?
Notabiyama formation
Maedani formation
Higashiuyama group
Nishiuyama group
Permian-Triassic
Kuga group
Kanoashi group
Triassic (252.17-201.3 Ma)
Yakuno complex (Yakuno intrusive rocks)
Mukaihata formation?
Kyowa group
Shodera group
Nariwa group
Jurassic (201.3-145.0 Ma)
Toyora group
Toyonishi group
Cretaceous (145.0-66.0 Ma)
Ryoke granites
Kanmon group
Shunan group
Kibe plutonic rock
Abu group
Hiroshima granite
Kenseki group
Inakura formation
Ishizuchiyama member
Yamaji member?
Nishinotani member
Kisa andesites
Tobara formation
Takada rhyolites
Karakawa formation
Hata formation
Itozaki formation
Shirakiyama tuff bed
Utsumi formation
Kobako formation
Sensui formation
Geihoku group
Asayama group
Kake group
Ottsukego formation
Karozu formation
Hinokidani formation
Inoshiyama formation
Kanbara formation
Komatsubara formation
Gyojayama member
Onagobatake member
Kanashi member
Kazahaya member
Taromizu member?
Kubi formation
Tajima formation
Uchiura member
Ibarashi plutonic rock
Sakugi volcanic rocks
Kuchiba plutonic rock
Kogoro formation
Imagushi andesite
Kogoro granite
Shobara group
Sugawa formation
Kawakita formation
Mitsugaichi andesite
Shimokogoro formation
Oitani formation
Bochigadawa formation
Paleocene (66.0-56.0 Ma)
Inbi granite
Suritaki plant fossil bed
Oligocene (39.0-23.03 Ma)
Tamagawa group
Ube group
Kawauchi dacite
Miocene (23.03-5.33 Ma)
Setouchi group
Setouchi andesite
Bihoku Group
Itabashi Formation
Korematsu Formation
Shinjo Sandstone Member
Mirasaka Conglomerate Member
Akagawa Conglomerate Member
Shiomachi Formation
Osumi? member
Katsuta formation
Fukuyama formation
Pliocene (5.33-2.58 Ma)
Kyuyamajari formation
Pleistocene (2.58- 0.01Ma)
Isa formation
Kanmuriyama andesite
Kotachi formation
Saijo formation
Onomichi formation
Yamajari formation
Takinosawa formation
Saijo formation
Ganmanji formation
Shiwaguchi formation
Pleistocene-Holocene
Aonoyama volcanic rocks
Hiruzen volcanic rocks
Holocene (0.01-0 Ma)
Sanbe tuff bed
Kaita delta
Upper formation
Lower formation
Late Yawata formation
Early Yawata formation
Investigation in progress
Oyashiki formation
Monta basalt
Mitsumori granite
Tsuga granite
Kake granite
Arafukuhara granite
Kumanojosan andesite
Mitarai formation
Mengameyama basalt
Geological structures
Funasa-Yamanouchi thrust fault
Miyoshi thrust fault
Wachi thrust fault
Ojidani thrust fault
Funato thrust fault
Teramachi thrust fault
Mirasaka thrust fault
Fukuyama thrust fault
Narazu thrust fault
Ohigashi thrust fault
Wakiiwa-Itoi thrust fault
Tochi thrust fault
Kamifuno-Nitanda thrust fault
Kake fault
Hiroshima fault
Yunoyama fault
Takanosu fault (Takanosuyama fault)
Yahatagawa fault
Abuyama fault
Sanjogawa fault
Kanmuriyama fault
Usuki fault (Usukidani fault)
Mochinoki fault
Yokokawa fault
Itagatani fault
Tateiwa fault
Nenotanigawa fault
Shinosaka fault
Taishakugawa fault
Aido fault
Momijibashi fault
Ibara-Kirota fault
Funogawa fault
Uchiyama fault
Oshigatao fault
Kenashiyama fault
Yakawa Klippe
Kannabe syncline