List of geological units in Toyama prefecture

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

Photographs of geological units in Toyama prefecture

Ordovician-Triassic

Hida marginal belt (Hida gaien belt): Omi metamorphic rocks

Carboniferous (358.9-298.9 Ma)

Hida marginal belt (Hida gaien belt): Renge metamorphic rocks

Permian-Triassic

Hida Belt

Hida Metamorphic rocks: Karahoriyama Formation

Hida Granitoids

Hida Older Granites

Eastern part

Central part: Kumanogawa-Nagatogawa Gabbroic Complex

Western part

Funatsu Granite

Hayatsukikawa granite

Triassic (252.17-201.3 Ma)

Hida Belt

Hida Metamorphic rocks: Unazuki Metamorphic Rock

Hida Granitoids

Hida Older Granites: Unazuki Granite

Mesozoic

Shokawa granite

Triassic-Jurassic

Kekachidake granite

Jurassic (201.3-145.0 Ma)

Kuruma Group: Otakidani Formation; Shinadani Formation; Teradani Formation; Negoya Formation; Kitamatadani Formation; Jogodani Formation

Tetori Group: Arimine Formation; Kiritani Formation; Magawa Formation

Kekachidake Granite

Okumayama Granodiorite

Hida Belt

Hida Granitoids

Hida Younger Granites: Funatsu Granite

Cretaceous (145.0-66.0 Ma)

Nohi rhyolites

Tetori Group: Kurobishiyama Formation; Mizukamidani Formation

Jinzu Group

Shiroiwagawa Formation

Inotani Formation: Minamimatadani Conglomerate Member

Ioridanitoge Formation

Kitamatadani Tonalite

Tsurugi-dake Granite

Kitanomata-dake Diorite

Kurobegoro-dake Diorite

Paleocene (66.0-56.0 Ma)

Oku-kurobe Granite

Ariake Granite

Oyama-dani Granite

Paleocene-Eocene

Futomiyama group

Oligocene (39.0-23.03 Ma)

Tori formation

Usunaka rhyolite

Miocene (23.03-5.33 Ma)

Hokuriku Group

Nirehara Formation: Imozu Conglomerate Member; Ashiu Sandstone Member; Myogashima Alternation Member

Yatsuo Group

Higashibessho Formation

Kurosedani Formation

Kurosedani Formation: Yamadanaka Tuff

Iozen Formation

Iwaine Formation

Shiroyama formation

Tonami Group

Otogawa Formation: OT1 Tephra; OT2 Tephra

Tenguyama Formation

Tenguyama Formation: Wadagawabashi Conglomerate Member; Senkoji Sandstone Member

Oiwa tuff bed

Sugata formation (Kuwanoin formation)

Ogume formation

Miyajima formation

Sengoku formation

Ono formation

Goi formation

Fuchigaya formation

Sogo formation

Nakanami formation

Fukuhira formation: Tsubono member; Furukakuma member

Miocene-Pliocene

Yachi Formation

Pliocene (5.33-2.58 Ma)

Yabuta Formation

Junicho Formation

Ao formation

Futagami formation

Hachibuse formation

Sunayama formation

Zukawa Formation

Sakiyama formation

Hokuriku Group

Takakubo Formation: Horinji member

Nishi-Toyama Sandstone Member

Muroda Formation

Kurobe-bessan Granite

Nanashizawa Diorite

Nanakura Igneous Complex

Pliocene-Pleistocene

Hokuriku Group

Tonami Group

Mita Formation: Taniguchi Tuff; MT2 Tuff; Shimose Tuff; MT1 Tuff; OT3 Tuff

Pleistocene (2.58- 0.01Ma)

Itaya Formation

Tofukuji formation

Tateyama volcano

Stage 4: Mikuriga-ike Gravel Bed

Stage 3

Tamadono Lava

Murodo Gravel Bed: Raicho-dai Gravel Bed

Stage 2: Shomyodaki Pyroclastic Flow Deposit; Zara-toge Welded Pyroclastic Rocks

Stage 1b: Nakanodani Lava; Upper Washidake Lava; Mizutani Lava; Zaimokuzaka Lava; Lower Washidake Lava; Dashiwara-dani Lava; Arimine Tunnel Lava

Stage 1a

Yukawa-dani Volcanic Rocks

Kaminoroka Volcanic Rocks: Sugo-nokkoshi Andesite

Magawa lake deposit

Daisen-Kurayoshi tephra bed

Ichinomiya formation

Kubo formation

Kamitako formation

Nishida formation

Fushiki formation

Asahiyama formation

Jokoji formation

Murakami formation

Yata formation

Amaharashi formation

Jiigatake-Shirasawatengu Caldera Complex

Jiigatake Caldera

Jiigatake Volcanics

Kurobe-gawa Granite: Upper Unit; Middle Unit; Lower Unit

Togechaya formation

Asahiyama shell bed

Kurehayama Gravel Bed: Taniguchi Tuff Bed

Chokeiji Sand Member

Anyobo Sandstone and Mudstone Alternation Member

Hongo Lahar Deposit

Kanazawa Granodiorite: Karasawa body

Nekomata Granite

Renge-dake Granodiorite

Holocene (0.01-0 Ma)

Tateyama volcano

Stage 4: Jigokudani Accessory Tephras; Banded sulphur deposit

Investigation in progress

Shirakawa granites

Sakaino formation

Tomosaka formation

Kitadai formation

Nishikanaya formation

Kawata formation

Moridera formation

Natsukawa formation?

Odomari formation

Nakada formation

Kudenhama formation

Kureha formation

Aira-Tn tuff bed

Geological structures

Kurobishiyama fault

Oyashirazu fault

Atotsugawa fault

Yokoyama-Nirehara thrust fault (Yokoyama thrust fault)

Kurehayama fault

Takashozu fault

Horinji fault

Kazura fault

Inotani anticline

Inotani syncline

Tomosaka unconformity