List of geological units in Niigata prefecture

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List of geological units in Niigata prefecture

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

Photographs of geological units in Niigata prefecture

Paleozoic

Renge Belt: Oeyama Ophiolite

Devonian (419.2-358.9 Ma)

Hida Marginal Belt: Tsuchikurazawa Formation

Carboniferous-Permian

Omi-Renge belt (Omi-Renge metamorphic rocks): Mizunashigawa metamorphic rocks

Akiyoshi Belt

Omi Complex: Omi Limestone

Joetsu Belt

Tanigawadake Belt: Tanigawadake Body, Serpentinite

Mizunashigawa Metamorphic Rocks

Renge Metamorphic Rocks: Omigawa Unit; Yunotani Eclogite Unit

Permian (298.9-252.17 Ma)

Akiyoshi Belt

Himekawa Complex: East Unit; Middle Unit; West Unit

Maizuru Belt: Mushikawa Formation; Kuratani Metamorphic Rocks; Kotozawa Igneous Rocks

Hida Marginal Belt: Shiroumadake Formation; Kotaki Formation

Triassic (252.17-201.3 Ma)

Joetsu Belt

Katashina Belt: Okutone Group; Kohoguchisawa Formation; Hontaniyama Formation; Kengakura Formation; Oitsukkui Formation; Otone Formation

Jurassic (201.3-145.0 Ma)

Joetsu Belt

Katashina Belt: Nakanotake Metagabbros

Oshirakawa Complex

Kuromatagawa Complex

Kamigongendoyama Complex: Myogazawa Formation; Himizo Formation; Kenomatasawagawa Formation; Hanegawa Formation; Okuwabara Formation

Kuruma Group

Yoshinazawa Formation

Odokorogawa Formation

Gamaharazawa Formation

Otakidani Formation

Shinatani Formation

Teradani Formation

Negoya Formation: Aisawadani Member

Kitamatadani Formation

Jogodani Formation

Senmi Complex: Kando Subcomplex; Takiya Subcomplex

Cretaceous (145.0-66.0 Ma)

Tetori Group: Mizukamidani Formation

Oyashirazu Formation

Shiritakayama Formation

Asahi rhyolites

Nihonkoku Mylonite (Nihonkoku gneisses): Takenosawa Formation

Akahageyama Formation

Ipponmatsuyama Formation

Tadamigawa Granites: Tadamigawa Younger Granites; Tadamigawa Older Granites

Sudagai Granite

Makihatayama Granodiorite

Tsuchitaru Mafic Hornfels

Cretaceous-Paleogene

Ninojidake Granite

Kajigawa Granodiorite

Eburisashidake Granodiorite

Iidesan Granodiorite

Garnet-biotite-muscovite Granite

Mikaguradake Granite

Kuromatagawa Granite

Daikura Granite

Daigenta Granite

Minakami Quartz Diorite

Paleogene

Ishizaka Formation

Oligocene (39.0-23.03 Ma)

Nyugawa formation

Myojiniwa andesites

Neogene

Tsuchitaru Quartz Diorite

Shibakura Quartz Gabbro

Miocene (23.03-5.33 Ma)

Takadateyama Formation

Bodaijiyama Formation

Teradomari Formation: Upper Teradomari Formation; Lower Teradomari Formation; Nz Tephra; Ij Tephra; Ndp Tephra; Yot Tephra; Ka Tephra; Fa Tephra

Nishikubiki Group

Nodani Formation

Nakanomata Mudstone Member

Minakuchi Alternation of Sandstone and Mudstone Member: Kanaya Tuff Member

Yokobatake Alternation of Sandstone and Mudstone Member

Nambayama Formation: J Alternation of Sandstone and Mudstone Member; I Alternation of Sandstone and Mudstone Member; H Alternation of Sandstone and Mudstone Member; G Shale Member; F Alternation of Sandstone and Mudstone Member; E Shale Member; D Alternation of Sandstone and Mudstone Member; C Alternation of Sandstone and Mudstone Member; B Mudstone Member; A Alternation of Sandstone and Mudstone Member

Taruda Formation: Higashimatsunoki Tuff; Tt1 Tephra; Tt2 Tephra; Tt3 Tephra; Tt4 Tephra

Matsunoyama Formation

Kitaoguni formation (Budo formation)

Sarukuradake Formation: Nokogiriyama Dacite Member; Gohyakuyama Andesite Member

Hanzogane Formation

Mikawa Formation?

Kanose formation

Sanze formation

Toyooka formation

Kyozukayama formation

Aikawa group

Kinpokuzan formation

Masaragawa formation

Aikawa formation: Katabe member (Katabe volcanic rocks)

Shigekurayama Formation

Minamiimogawa Formation: Shigekurayama Volcanic Rock Member; Sarugedake Volcanic Rock Member; Dtbt; Kmgg

Nanatani Formation: Imogawa Member; Kws; Kbi; Kzi; Kkm; Khs; Kpp; Sbi

Otani Formation

Kmt: Kmt-a; Kmt-b

Tonoiri Formation: Amidase Pyroclastic Flow Deposit

Tenjoyama formation?

Mikawa Formation

Onogawa formation

Yamamoto Formation

Yamamoto Formation: Nechi Basalt

Sennozawa Formation

Waniguchi Formation

Tokurayama Formation

Kamagui formation

Tsurushi Formation

Orito Formation

Tokonami Formation

Nomura Formation

Tenman Formation (Sakanaiwa Formation): Shinazawagawa Sandstone and Mudstone Member; Higashikoidegawa Basalt Member; Hanatate Tuff Member

Tsunagi Formation

Nishimyo Formation

Jonai Group

Hakkaisan Formation: Kinjosan Volcanic Conglomerate Member; Sakadoyama Sandstone and Shale Member; Hakkaisan Conglomerate Member

Okura Formation: Ozuki Tuff and Shale Member; Okura Andesite Member; Shimonagasaki Conglomerate and Shale Member

Matsukawa Formation, Uonuma

Yuzawa Formation

Anazawa Formation

Toyagamine Formation

Uwano Formation: Jyunitoge Green Tuff Member; Onogawa Hard Shale Member

Osawa Formation

Tonokawa Formation

Ketto Formation

Suzutani formation: Narumiyama member

Osudo formation

Ogi basalts

Awashima Formation: Awashima Shale Member; Hagenohama Sandstone and Conglomerate Member

Awashimaura Dolerites

Asahi formation: Budo member; Nagasakatoge member

Oshimizu Formation

Ogaya Formation: Nakayama Tuff; Matsudome Tuff; Kuroiwa Tuff

Kiyotsu Formation: Omine Sandstone Shale Member; Yagisawa Tuff Member; Yuzawa Sandstone Conglomerate Member; Shibahara Tuff Member

Shiraita Formation

Matsukawa Formation, Yuzawa

Shimoseki formation

Kannonji formation (Nanatani formation)

Higurayama formation

Yamanokami formation

Maze formation

Maze basalt

Kakuda formation?

Notayama formation

Haguro formation

Iwakura formation

Gomoto tuff bed (Gtp)

Nishikubiki Hypabyssal Rocks

Miyanoshita Quartz Diorite Porphyry

Okutadami Green Tuff Formation

Daishojinokashira Basalt Formation

Shigekuradake Conglomerate Formation

Miocene-Pliocene

Shiiya Formation

Shiiya Sandstone

Ishiji Sandstone and Mudstone Alternation

Ishiji Sandstone

Gtp Tephra: GtpA; GtpB; GtpC

Km Tephra: Km1; Km2

Nlg Tephra: Nlg-1; Nlg-2; Nlg-3; Nlg-4

Uchisugawa formation

Yamadagawa formation

Nakayama Formation

Nodani Formation: Nakanomata Member

Sugawa Formation: Kiwadahara Tuff; Takatoko Tuff; Tani Tuff; Amamizukoshi Tuff

Nechi Formation: Nigorigawa Tuff Member

Hododaira Formation

Hijirigahana Formation

Takegahana Formation: Komeyama Tuff; Hijirigahana Tuff

Mugurazawa Formation

Tomikura Formation: Tarumoto Pyroclastic Rock Member; Kamikozawa Tuff; Shimotarumoto Tuff

Kiyotsukyo Quartz Diorite Porphyry

Pliocene (5.33-2.58 Ma)

Joetsu Group

Torigakubi Formation: Chayagahara Mudstone Member; Torigakubi Conglomerate Member

Tanihama Formation: Arimagawa Mudstone Member; Osuga Tuff Member

Nadachi Formation

Nishikubiki Group

Kawazume Formation: Tsutsuishi Alternation of Sandstone and Mudstone Member; Iwaobashi Sandstone Member; Seto Tuff Member; Nagahama Mudstone Member; Tsunako Conglomerate Member; Doguchi Alternation of Sandstone and Mudstone Member

Nagasawa formation

Nitta formation

Naradate Formation

Higashigawa Formation: Chitose Tuff; Akakura Tuff; Kamiebiike Tuff

Tamugigawa Formation: Kamioka Tuff; Itayama Tuff; Kotsunagi Tuff; Azamihira Hornblende Tuff; Isg-c Tephra; Isg-e Tephra; Isg-f Tephra; Isg-g Tephra; Isg-h Tephra; Suga Tuff; Shimoebiike Tuff; Yoneyama Tuff; Iriyamagawa Tuff; Nabiro Tuff

Shiroiwa Formation

Kurohime Formation

Asojima Formation: Asojima I Tuff; Asojima II Tuff

Takenomachi formation: Nkwc Tephra

Matsugoya formation

Dainichi formation

Byobudani formation

Tanne Formation

Umikawa Formation

Nishitajiri Formation

Shitoka Formation

Mageshidani Formation

Hachioji Formation: Ksp Tephra; Hog a Tephra; Hog b Tephra; Hog c Tephra

Iwanosawa Formation

Suganuma Formation: Tgm Tephra; Sug a Tephra; Sug b Tephra; Sug c Tephra; Sug d Tephra; Sug e Tephra; Sug f TEphra

Hachikokusan Formation: Haa-I Tephra; Haa-II Tephra

Yoneyama Formation

Kawaguchi Formation: NA21B Tephra; NA22A Tephra; NA23 Tephra; NA24 Tephra; NA25 Tephra; NA26 Tephra; NA27 Tephra; NA28 Tephra; NA29 Tephra; NA30 Tephra; NA31 Tephra; NA32 Tephra; NA33 Tephra; NA34 Tephra; NA35 Tephra; NA37 Tephra; NA38 Tephra; NA39 Tephra; NA40 Tephra; NA41 Tephra; NA42 Tephra; NA43 Tephra; NA44 Tephra; NA45 Tephra; NA46 Tephra; NA50 Tephra; NA60 Tephra

Suyoshi Formation: Kamasawagawa Andesite and Dacite Member

Uragawara Formation: Nagashiri Tuff

Iwanosawa Formation

Arasawadake Dacite-Quartz Porphyry Complex

Mizunagasawayama Welded Tuff Formation

Nigoriike Formation

Ichinose Formation: Kamisekida Tuff

Korengeyama Granodiorite

Pliocene-Pleistocene

Nishiyama Formation

Inagawa Sandstone Member

Hamatsuda facies

Ya Tephra: Ya-1; Ya-2; Ya-3; Ya-4; Ya-5; Ya-6

Sdp Tephra: Sdp-A; Sdp-B; Sdp-C

Gos Tephra: Gosj-1; Gosj-2; Gosj-3; Gosj-t

Hap Tephra: Hap-1; Hap-2; Hap-3

Jwg Tephra: Jwg-1; Jwg-2; Jwg-3; Jwg-4

Tsp Tephra: Tsp-1; Tsp-2; Tsp-3; Tsp-4

Fup Tephra: Fup-1; Fup-2; Fup-3; Fup-4; Fup-5; Fup-6

Chw Tephra: Chw-1; Chw-2; Chw-3; Chw-4

Arg Tephra: Arg-1; Arg-2

Uonuma Formation: Lower member

Furuto Formation: Wz Tephra; Ko Tephra

Minagawa Formation

Mdp Tephra: Mdp-1; Mdp-2

Kakuma Formation

NA13 Tephra: NA13C Tephra; NA13D Tephra

Chojanotebako Intrusive Rock

Hatamochiyama Intrusive Rock

Tanne Intrusive Rock

Doro formation

Kuwae formation

Sasakami formation

Kawachi Formation

Yamadera formation

Gomashio tuff bed (SK050)

Ogawa Formation: Saruhashi Conglomerate Member; Drg Tephra; Nwp Tephra; Dlp Tephra

Pleistocene (2.58- 0.01Ma)

Tazawa Formation

Kanbara Group: G₁ Bed; G₂ Bed; G₃ Bed; G₄ Bed; G₅ Bed

Nishikanbara Formation: G₁ Bed

Ryotsuoki Group

Myogadani Formation

Kanayama Formation

Niigata-Yakeyama volcano: Shinkawa lava flow

Myoko volcano: Yashirogawa Debris Avalanche Deposits; Shibuegawa Pyroclastic Flow Deposits; Sekikawa Debris Avalanche Deposits (Haradori debris avalanches); Terao Pyroclastic Flow Deposits; Myokosan volcano; Mitahara volcano; Kannasan volcano; Kaminaribishi volcano; Madarao volcano; Ikenomine lava flow

Sawane Formation: Kaidate Sandstone Member; Kaidate Formation; Shichiba Formation

Old sand dune deposit: Ijimino formation

Haranomachi Formation

Katamachi Sand Dune: Katamachi Sand Bed

Oyama Formation

Uonuma Formation: Upper member; Middle member; Ys Tephra; SK020 Tephra; Kz Tephra; Ab I Tephra; Ab II Tephra; Ksg Tephra; Hmp Tephra; Om-SK110 Tephra; Htg Tephra; Yt Tephra; Hkp Tephra; SK120 Tephra; Usp Tephra; Irg Tephra; Tzc Tephra; My-TB Tephra; Tr-TB Tephra; Top Tephra; Mgp Tephra; Kog Tephra; Ks Tephra; OK I Tephra; OK II Tephra; OM1-OK III Tephra; Se Tephra; RW Tephra; Kk Tephra; Tg Tephra; Ka Tephra; Mo Tephra; Ns Tephra; Sarukura-gomashio Tephra; Kap Tephra; Kag Tephra; Inp Tephra; Ka-TB Tephra; Tt-TB Tephra; Hi-TB Tephra; Ar-TB Tephra; Vp Tephra; Tokaishoku volcanic ash; Zasshoku Pumice and Lapilli; Tokaishoku volcanic ash zone; Hakushoku Pumice; Ry Tephra; Highquartz Pumice; Ps Tephra; LA Tephra

Amamizuyama Formation: Nakajogawa Member; Tarudagawa Member; Karigamine Member

Kamigo Formation

Koikegawa Member: Mpk Tephra

Tomaru Formation

Shikumigawa Formation: Maeko Member

Kusso Formation

Shimizusawa Formation

Akatani Formation

Honai Formation: Kamonuka Tuff

Hirote Formation

Komagome Formation

Konigori Formation

Torikabuto volcano

Maekura Stage: Maekura Lavas and Pyroclastics

Iiji volcano

3rd stage products

Iijichuo Lava Dome

Tachigarayama Lava Dome

Ohara Pyroclastic Flow Deposit: Ohara Pyroclastic Flow Deposit II; Ohara Pyroclastic Flow Deposit I

Ohara Lava: Ohara Lava II; Ohara Lava I

Igarashi Pyroclastic Flow Deposit

Igarashisekishoku Lava

Igarashi Lava Dome

Yuzawa Lava Dome

Upper Yuzawa Lava: Yuzawa Lava V; Yuzawa Lava IV

2nd stage products

Okusoechi Pyroclastic Flow Deposit

Miyabayashi Lava: Miyabayashi Lava III; Miyabayashi Lava II; Miyabayashi Lava I

Upper Igarashi Lava: Igarashi Lava VI; Igarashi Lava V; Igarashi Lava IV; Igarashi Lava III

Older Pyroclastic Flow Deposit

1st stage products

Lower Igarashi Lava: Igarashi Lava II; Igarashi Lava I

Lower Yuzawa Lava: Yuzawa Lava III; Yuzawa Lava II; Yuzawa Lava I

Oharakokushoku Lava

Naeba volcano: 4th stage products; 3rd stage products; 2nd stage products; 1st stage products; Older Naeba volcanic products

Nishikubiki Hypabyssal Rocks: Hokogatake Intrusive Rocks

Shirouma-Oike volcano

Younger stage: Kazafukidake Pyroclastic Flow Deposits; Ebiradake Lava

Older stage: Gamaharayama Lava

Higher Terrace Deposits, Awashima island

Shinanogawa Loam: Kaisaka Loam; Maibara Loam; Taniage Loam; Takaba Loam

Taniage Terrace Deposit

Maibara Terrace Deposit

Unoki Terrace Deposit

Honokizaka Terrace Deposit

Kaisaka Terrace Deposit

Shomen Terrace Deposit

Owarino I Terrace Deposit

Owarino II Terrace Deposit

Yasuda Formation: VII member; VI member; V member; IV member; III member; II member; I member

M II Terrace Deposit

Otsubo Formation

Oomigawa Formation

Kume Conglomerate

Ainokaze Formation

Hirayama Formation: Upper member; Lower member

Noroshidai Loam

Haizume Formation

Funabashi Sand Formation

SK030 Tephra

JA-O18L Tephra: Shirozara-I tuff bed; Shirozara-II tuff bed

Komanoma Formation: Komanoma Tephra; Irajima Tuff

Asakusa volcano: Onigatsura Volcanic Rocks; Tadamisawa Lavas

Nishi Formation

Masugatayama Lava

Uenohara Formation

Nosegahara Formation

Takanomine Formation

Kajiyashiki Formation

Eboshiyama Formation

Sarukura Formation

Ontake-Katamachi pumice bed

Daisen-Kurayoshi pumice bed (DKP)

Kamitaru pumice bed

Nihongi debris flow deposit

Sekiyama scoria bed (SY)

Takatoko scoria bed (TT)

Kanemata tuff bed (KM)

Matsugamine formation

Seki scoria bed

Shibutamigawa pyroclastic flow deposit

Sasagamine formation

Kikai-Akahoya tuff bed (K-Ah)

Kikai-Tozuhara tuff bed (K-Tz)

Aso-4 tuff bed (Aso-4)

Tateyama-E pumice bed (Tt-E)

Tateyama-D pumice bed (Tt-D)

Sadoyama volcano

Kurohimeyama volcano: Naenataki lava flow

Rokugatsu formation

Asama-Kusatsu pumice bed

Kaisaka scoria bed

Kuninaka formation

Kamisukebuchi formation

Nika formation

Senami formation

Chugenmachi formation

Yashiroda formation

Yamagami formation?

Gozu formation

Akasaka formation

Maekawa pyroclastic flow deposit

Yakiyamagawa pyroclastic flow deposit

Lower II Terrace Deposits, Kariyata river

Lower I Terrace Deposits, Kariyata river

Middle III Terrace Deposits, Kariyata river

Middle II Terrace Deposits, Kariyata river

Middle I Terrace Deposits, Kariyata river

Higher IV Terrace Deposits, Kariyata river

Higher III Terrace Deposits, Kariyata river

Higher II Terrace Deposits, Kariyata river

Higher I Terrace Deposits, Kariyata river

Lower I Terrace Deposit, Nagaoka

Middle I Terrace Deposit, Nagaoka

Middle II Terrace Deposit, Nagaoka

Middle III Terrace Deposit, Nagaoka

Higher Terrace Deposit, Kakizaki

Middle Terrace Deposit, Kakizaki

Lower Terrace Deposit, Kakizaki

Higher Terrace I Deposit, Shinano river

Higher Terrace II Deposit, Shinano river

Middle Terrace Deposit, Shinano river

Lower Terrace I Deposit, Shinano river

Lower Terrace II Deposit, Shinano river

T₀ Terrace Deposit, Shinano river

T₁ Terrace Deposit, Shinano river

T₂ Terrace Deposit, Shinano river

T₃ Terrace Deposit, Shinano river

T₄ Terrace Deposit, Shinano river

T₅ Terrace Deposit, Shinano river

T₆ Terrace Deposit, Shinano river

T₇ Terrace Deposit, Shinano river

t₁ Terrace Deposit, Aburuma river

t₂ Terrace Deposit, Aburuma river

Higher Terrace Deposit, Yamamotoyama Terrace

Middle Terrace Deposit, Yamamotoyama Terrace

Lower Terrace Deposit, Yamamotoyama Terrace

Higher 1 Terrace Deposit, Sekikawa river

Ueno Colluvial Deposit

Shobu Colluvial Deposit

Nakahara Colluvial Deposit

Older Okemi Landslide Deposits

Hikarigahara Landslide Deposits

Younger Okemi Landslide Deposits

Higher I Terrace Deposit, Itoigawa

Higher II Terrace Deposit, Itoigawa

Middle I Terrace Deposit, Itoigawa

Middle II Terrace Deposit, Itoigawa

Middle III Terrace Deposit, Itoigawa

Higher Terrace Deposit, Kotaki

Nishikawara Terrace Deposits

Mizuho Terrace Deposits

Ono Terrace Deposits

Lower Terrace Deposits, Kotaki

Pleistocene-Holocene

Shirone formation

Takada Formation

Hiuchikawara formation

Sasakura formation

Koyaike tuff bed

Holocene (0.01-0 Ma)

Niigata sand dune deposit

New sand dune deposit I

New sand dune deposit II

New sand dune deposit III: New sand dune deposit III-1; New sand dune deposit III-2

Niigata Sand Dune

Coastal Sand Dune I: Coastal Sand Dune I-1; Coastal Sand Dune I-2; Coastal Sand Dune I-3; Coastal Sand Dune I-4

Coastal Sand Dune II

Coastal Sand Dune III: Coastal Sand Dune III-1; Coastal Sand Dune III-2

Yotsugoya Formation

Kashiwazaki Formation

Arahama Sand Dune: Younger Sand Dune II; Younger Sand Dune I

Katamachi Sand Dune

Younger Sand Dune: Younger sand dune deposit I; Younger sand dune deposit II

Yamamotoyama Loam

Myoko volcano: Otagirigawa Pyroclastic Flow Deposits; Otagirigawa tuff bed; Akakura Pyroclastic Flow Deposits; Tsubame lava; Maruyama lava; Kanna lava

Niigata-Yakeyama volcano: Daiichi lava flow; Maeyama lava flow; Ichinokura lava flow; Bokodakiiwa lava flow; Lava dome; New pyroclastic flow deposit

Hayakawa Pyroclastic Flow Deposits

Maekawa Mudflow Deposits

Sekigawa Formation

Taguchi debris flow deposit

Kiba lahar deposit

Suginosawa debris flow deposit

Otani pyroclastic flow deposit: Upper member; Lower member

Higashishinyu formation?

Kanamaru formation

Kanose formation

Lower III Terrace Deposits, Kariyata river

Murono mud volcano

Gamo mud volcano

Shosenji mud volcano

Lower Terrace Deposits, Awashima island

Holocene Terrace Deposit, Nagaoka

Lower Terrace III Deposit, Shibumi river

T₈ Terrace Deposit, Shinano river

T₉ Terrace Deposit, Shinano river

T₁₀ Terrace Deposit, Shinano river

Lower Terrace Deposit, Itoigawa

Age unknown

Shimokonakayama formation

Nakamonzen formation

Myoko volcano

Myokosan volcano: Jigokudani lava flow; Otaki lava flow; Nishikawadani lava flow; Myokosan lava flow

Central cone

Somma lava

Fukasawa pyroclastic flow deposit

Nishikawadani scoria bed

Maibara pumice bed (MG-b)

Johara pumice bed

Akasawa pumice bed

Aiyoshi scoria bed

Nakago pumice bed

Honokizaka scoria bed

Miho pumice bed

Taniage scoria bed

Onibushi formation

Shibakura formation

Geological structures

Itoigawa-Shizuoka tectonic line

Shibata-Koide tectonic line

Fossa magna

Yukyuzan fault

Kuninakaminami fault

Yamazaki fault

Katakai faults