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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

Age unknown

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