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List of geological units in Nagano prefecture

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

Photographs of geological units in Nagano prefecture

Proterozoic
Hida belt
Paleozoic
Hida Marginal Belt (Hida Gaien Belt)
Yarigatake Metamorphic Rocks
Omi limestone
Permian (298.9-252.17 Ma)
Chichibu belt
Odakayama group
Shirabiso group
Koshibu group (Koshibu formation)
Misakubo limestone
Koshibu limestone
Nojiri limestone
Shirahone limestone
Hida Marginal Belt (Hida Gaien Belt)
Kamishiro Formation
Shiroumadake Formation
Mesozoic
Chichibu belt
Ogurayama group (Ogurayama formation)
Kamanashi group
Hanaba formation
Kamanashigawa formation
Kaize group
Koshibu group (Koshibu formation)
Mino Belt
Hakuba group
Azusagawa group
Sawando formation
Jurassic (201.3-145.0 Ma)
Mino Belt
Hirayu Complex
Shirahone complex
Sawando Complex
Shimashima complex
Misogawa Complex
Kyogatake Complex
Narai Formation
Yabuhara Formation
Chichibu belt
Kuruma Group
Gamaharazawa Formation
Kappazaka group
Kawakami group
Kizaki formation
Torinosu limestone
Jurassic-Cretaceous
Sanchu graben
Ishido formation
Sebayashi formation
Naranokidaira formation
Koya formation
Cretaceous (145.0-66.0 Ma)
Ryoke metamorphic rocks
Older Ryoke granitoids
Tenryukyo Granite
Katsuma granite
Hiji granite (Hiji quartz diorite)
Ochiai granite
Hissori granite
Takisawa granite
Kumabuse granite
Minakata granite
Kamihara Tonalite
Younger Ryoke granitoids
Ikuta granite (Mitsuhashi granodiorite, Shinnohana granite)
Naegi granite
Agematsu granite
Kisokoma granite
Kisokoma-I granite
Kisokoma-II granite
Otagiri granite
Ichida granite
Seinaiji granite
Kadoshima granite
Busetsu Granite
Inagawa Granodiorite (Sumikawa granite)
Takato granite
Shinno granite
Kashio mylonite (Kashio gneiss)
Sanbagawa metamorphic rocks
Kurokawa group
Yokokawagawa metamorphic rocks
Mikabu belt
Nyukasayama group
Todai formation
Todai tectonic belt
Yaegochi formation
Mizukubo formation
Todai formation
Shiobera formation
Shimanto Belt
Akaishi Group (Oigawa group)
Senjodake Formation
Akaishidake Formation
Sanchu graben
Shoya formation
Kizaki Rhyolite
Nohi rhyolites
Tozawa formation
Kuroizawa welded tuff bed
Breccia-I formation
Ichinosawa welded tuff bed
Breccia-II formation
Enasan welded tuff bed
Fujimidai welded tuff bed
Breccia-III formation
Minamisawa welded tuff bed
Adera formation
Adera welded tuff bed
Takatoyama group
Komagatake granite
Kinpusan granite
Ipponmatsuyama Formation
Cretaceous-Paleogene
Shimato Belt
Shirane Group
Okumatashiro Granite
Ishizaka Rhyolite
Paleogene
Setogawa belt
Paleogene-Neogene
Toyohashi formation
Paleocene (66.0-56.0 Ma)
Oku-kurobe Granite
Oshirasawa Granite
Aoki Granite
Ariake Granite
Oligocene (39.0-23.03 Ma)
Todai tectonic belt
Wada formation
Yaegochi formation
Aokuzuretoge formation
Kitaaiki formation
Oligocene-Miocene
Saku group
Uchiyama formation
Miocene (23.03-5.33 Ma)
Chiisagata formation
Bessho Formation
Kokuzo formation
Aoki Formation
Hitoeyama Member
Hosoda member
Akamatsu member
Ogawa Formation
Sashikiri member
Shige coal bed
Omi formation
Nodaira member
Agero member
Obayama member
Sou member
Iwashita member
Komiji member
Suzuranko formation
Kamuriki member
Koso Tuff
Yanagisawa Formation
Ronji Formation
Kinasa Tuff 10
Kinasa Tuff 20
Nishikyo Formation
Susobana Formation
Asakawa Formation
Kasagoshi Pyroclastic Rocks
Takai Shale Member
Shiga Green Volcanic Rocks
Tomikusa Group
Mukaikata formation
Wago formation
Nakano formation
Chiyo formation
Ogori formation
Miyazawa formation
Tachikara formation
Yonekawa formation
Awano Formation
Arakida Formation
Upper Member
Lower Member
Onzawa Facies
Oshimojo Formation
Nukuta Formation
Wachino Formation
Uchimura formation
Mori Member
Toyosaka Member
Yokoo Member
Takeshi formation
Ichinose formation
Hongo formation
Hoshina basalts
Susaka andesites
Toyosaka andesites
Fuji formation
Kokuzo formation
Iseyama Formation
Yokoo Formation
Tarouyama Formation
Oomineyama Formation
Kusumi formation?
Chausuyama group (Chausuyama formation)
Ikenodaira pyroclastic rocks
Chausuyama pyroclastic rocks
Sasakyu formation
Kurohori formation
Fuetsu formation
Kaguraoka formation
Toritachi formation
Uzumaki formation
Nakagomi formation
Hachinodaira formation?
Yokonezawa formation
Okunishiyama formation
Kamikusugawa formation
Hodai formation
Kusabatake formation?
Oshidashi formation
Konabe formation
Kaminara formation
Kiridoshi formation?
Karasawa Granodiorite
Akiyamago Formation
Wayama Tuff Member
Yashiki Conglomerate Member
Kiriake Member
Zakogawa Formation
Ketto Formation
Miocene-Pliocene
Tomikura Formation
Tarumoto Pyroclastic Rock Member
Kuwabara Volcanics
Hijiriyama Volcanics
Saku group
Shiga formation
Komagome formation
Yaekubo formation
Kosaka formation
Moriya formation
Gongenzawa formation
Takabe formation
Tateishi formation
Ushiroyama formation
Usuzawa formation
Katakura formation
Uchimura formation
Fujiyama formation
Setogawa formation
Otani formation
Takai Volcanic Rocks
Pliocene (5.33-2.58 Ma)
Shigarami Formation
Joshita Sandstone and Conglomerate Member
Kumeji Pyroclastics Member
Nagaiwa formation
Nakanochi formation
Orihashi formation
Hikage Formation
Hikage Tuff 50
Togakushiyama Formation
Tanogashira Formation
Hikage Tuff 10
Ogikubo Formation
OT10 Tephra
Kawashimo formation
Arakurayama Formation
Takafu Formation
Gonda Formation
Seguchi Formation
Hrp Tephra
Nigoriike Formation
Ichinose Formation
Chohanyama Lava
Kamiike Volcanic Rocks
Hakoyama Volcanic Rocks
Karitasan Volcanic Rocks
Lower Karitasan Lava
Middle Karitasan Lava
Upper Karitasan Lava
Toyabasan Lava
Iizunayama Lava
Asahiyama Lava
Misawayama lava
Karitayama-1 lava
Karitayama-2 lava
Karitayama-3 lava
Kimyosan Volcanics
Hokiyadake Volcanics
Makiuchi Andesite
Akada Formation
Shinoyama Volcanics
Nagai formation
Kanazawa granite
Shimoarai formation
Aihama formation
Otsuki formation
Takahagi formation
Kumeji formation
Yoshiwara formation
Hirano formation
Higashiyama formation
Kosenzawa formation
Togakushiarakura formation
Narao formation
Sekiguchisawa formation
Okawasawa formation
Koshikakeiwa formation
Kotakiyama Group
Pliocene-Pleistocene
Sarumaru Formation
T1 Tephra
T2 Tephra
T3 Tephra
T3.5 Tephra
T4 Tephra
T5 Tephra
Hiderida Formation
Takimoto Formation
Minakamiyama Volcanics
Komoro group
Nashidaira formation
Okui formation
Nunobiki formation
Uryuzaka formation
Motojyuku group
Kiritsumi group
Agatsuma group
Omine belt
Omine formation
Takagariyama formation (Nyukawa pyroclastic flow deposit)
Ina group
Ina formation
Kume formation
Oyada formation
Misobeta formation
Horikoshi formation
Ogawa Formation
Nonomigawa Pyroclastic Rocks Member
Sk Tephra
T4 Tephra
Shiokawa formation
Quarternary
Aikigawa lahar deposit
Ontake-4 pumice bed
Kazafukidake Andesites
Pleistocene (2.58- 0.01Ma)
Shikumigawa Formation
Niteno Member
Nis Tephra
Higashinosawa Formation
Mitsuyama Formation
Toyono Formation
Hiraide Sand and Gravel Member
Kannonyama Silt Member
Takaoka Sand and Silt Member
Sodenoyama formation
Hotaka Andesites
Maehotakadake welded tuff bed
Mizuho Volcanic Rocks
Kokuzo Volcanic Rocks
Ryuo Volcanic Rocks
Hirao Volcanic Rocks
Kasadake Volcanic Rocks
Kenashi volcano
Kenashiyama volcano
Upper group
Uenotaira Lava
Uenotaira Tuff Breccia
Shigarindo Lava
Jokurayama Lava
Shimizudairarindo Lava
Tarudaki Lava
Lower group
Kayanodairarindo Lava
Hirasawa Lava
Takinosawa Lava
Nozawa Lava
Kenashigake Lava
Sutakagake Lava
Skyline Lava
Sutakako Lava
Kenashiyamahigashi Lava
Karanosawa Lava
Nakao Lava
Hikage Lava
Manbutsuiwa Tuff Breccia
Shiroyama Lava
Kosugejinja Lava
Hokuryuko Lava
Sarugasawa Lava
Fukushima Lava
Mizuo-Oiriyama volcano
Oiriyamasancho Lava
Hikagerindo Lava
Oiriyama Lava
Oiri Lava
Honzawa Lava
Mizuoyamasancho Lava
Mizuoyama Lava
Mushiu Lava
Takakurayama Lava
Takakura Lava
Mizuoyamachui Lavas
Ikenosawa Lava
Ikenosawagawa Lava
Takakurayamashita Lava
Tsuboyama Lava
Western basal volcanic rocks
Akataki Lavas
Akadaredani Lavas
Tsubono Pyroclastic Rocks
Oirizawa Lava
Kawakurumizawa Lava
Ojiroyama Lava
Hakkenzan Lava
Volcanic-fan deposit
Kuroiwayama Volcanic Rocks
Chayaike Volcanic Rocks
Okushiga Lake Deposit
Madarao volcano
Tsukiyodana Lava
Madaraojobu Lava
Daimyojin Lava
Arasehara Pyroclastic Rocks
Kamaishi Lava
Madaraokabu Lava
Mujinayama Lava
Madaraohokubu Lava
Madaraokogen Pyroclastic Rocks
Madarao Lava
Momigasaki Lava
Shiroyama Volcanic Rocks
Yakushidake Volcanic Rocks
Hokushin Loam
Nojiri Loam
Upper Nojiri Loam
Middle Nojiri Loam
Lower Nojiri Loam
Kamiyama Loam
Upper Kamiyama Loam
Lower Kamiyama Loam
Akashio Loam
Biotite Loam
Samizu Loam
Diorite Porphyry 1
Diorite Porphyry 2
Diorite Porphyry 3
Mujinagoro Body
Iizuna volcano
2nd stage
Lava dome stage
Kenashiyama Lava
Takadekki Lava
Tengudake Lava
1340-ho Lava
Fujimiyama Lava
Otsumuriyama Lava
Nenbutsuike Lava
Caldera stage
Koshimizu Debris Avalanche Deposit
Stratovolcano stage
Morozawa Pyroclastic Flow Deposit
Kasayama Lava
Iizunayama Lava
Iizuna Pyroclastic Flow Deposit
Iizuna Basalts
Mure Debris Avalanche Deposit
1st stage
Menozawa Lava
Tonozawa Lava
Kasurazawa Lava
Iizuna somma lava
Shinki somma lava
Kuroiwa basalt
Shigaramitsubone lava
Ogawamura basalt
Ikejirigawa Debris Avalanche Deposit
Kurohime volcano
3rd stage
Central cone stage
Kokurohime Lava
Sutakayama Lava
Caldera stage
Nabewarikawa Debris Avalanche Deposit
Stratovolcano stage
Karasawa Lava
Chosui Lava
Mikaerisaka Lava
Nagahara Lava
Ushibuseyama Lava
2nd stage
Takazawa Scoria
1559m-ho Lava
Tenguiwa Lava
Nanamagarisaka Lava
Ichirozawa Lava
Hesoyama Lava
1st stage
Sadoyama Lava
Somma lava
Toriigawa basalt
Kurohime lava
Yamakuwayama Lava
Komagataki Lava
Sekikawa Lava
Takazawa Pyroclastic Flow Deposit
Komazume Debris Avalanche Deposit
Motodoriyama Volcanic Rocks
Sansenji Volcanic Rocks
KH-RG Tephra
MK-KM Tephra
MK-SY Tephra
MK-OT Tephra
Shinetsu Tephra
Shinanomachi Loam
Shigayama volcano
Shigayama Volcanic Rocks
Younger Shigayama Volcanic Rocks
Older Shigayama Volcanic Rocks
Suzurikawa Volcanic Rocks
Yakebitaiyama volcano
Yakebitaiyama-1 lava
Yakebitaiyama-2 lava
Shigayama lava
Lower Hokiyadake lava
Upper Hokiyadake lava
Higashitateyama lava
Shigachojo lava
Asahiyama lava
Hachiyama Volcanic Rocks
Takinosawa Volcanic Rocks
Takappyo Volcanic Rocks
Takappyoyama Lava
Kayanotaira Pyroclastic Flow Deposit
Hata loam bed
Kuronuka tuff bed
Kibidango-I tuff bed
Kibidango-II tuff bed
Kikuro tuff bed
Ue1pink tuff bed
Nuka tuff bed
Aohige tuff bed
Nisenomi tuff bed
Akasuko tuff bed
Nomi tuff bed
Santensetto tuff bed
Konaazuki tuff bed
Doraikarei tuff bed
Kibiokoshi tuff bed
Kawara tuff bed
Renga tuff bed
Shirotsubu tuff bed
Tsubuorengi tuff bed
Sumire tuff bed
Haizara tuff bed
Shimizu Formation
Harinoki Formation
Kannoki Formation
Nojiriko Formation
Upper member
Middle member
Lower member
Furuma Formation
Mure Formation
Sasagamine Formation
Jretsu formation
Minamigo Formation
Akasaka Formation
Kurai Formation
Haibara Formation
Nishigawara Formation
Shinomiya Formation
Ooka Mudflow Deposit
Yanagisawa Mudflow Deposit
Older Ubasute Mudflow Deposit
Ueda lahar deposit
Sugadaira lacustrine deposit
Kitamimaki volcanic rocks
Ontake-1 pumice bed (Pm-1A, On-Pm1)
Takidani Granodiorite
Kanazawa Granodiorite
Karasawa body
Yokoteyama lava
Kawatani Mudstone Formation
Yashiki Formation
Minochi Formation
Yokoyugawa Lake Deposit
Shiga Lake Deposit
Ochiai Lake Deposit
Daisen-Kurayoshi pumice bed (KDP, DSK)
Senbonmatsu pumice bed
Kyoraiishi formation
Ypm-IV tuff bed
Jiigatake-Shirasawatengu Caldera Complex
Jiigatake Caldera
Jiigatake Volcanics
Shirasawanokoru Clastic Bed
Kurobe-gawa Granite
Upper Unit
Middle Unit
Lower Unit
Shirasawatengu Caldera
Shirasawatengu Volcanics
Omine Pyroclastic Flow Deposit
Enrei volcanic rocks
Kirigamine Volcanics
Yashigamine Volcanics
Takayama Volcanics
Washigamine Volcanics
Wadatoge Volcanics
Horoku lava
Nishimochiya basalt
Nishimochiya lava
Wadatoge rhyolite
Hoshikusotoge Pumice Flow Deposit
Sannomatazawa Pumice Flow Deposit
Unit 6
Unit 5
Unit 4
Unit 3
Unit 2
Unit 1
Mitsumine Volcanics
Upper Mitsumineyama Lava
Lower Mitsumineyama Lava
Utsukushigahara Volcanics
Ogato Lava
Hyakumagari Volcaniclastics
Upper Ogahara Lava
Lower Ogahara Lava
Datekawarasawa Sandstone Member
Nakayamasawa Lava
Hirokoba Lava
Karasawagawa Volcanics
Tobiratoge Volcaniclastics
Sanjiro Volcaniclastics
Yateikurasawa Lavas
Wadabokujyo Volcanics
Ushifuseyama Lava
Hodonoirigawa Lavas
Kirigamine volcano
Kirigamine volcanic rocks
Kirigamine-II volcanic rocks
A tuff bed
A1 tuff bed (A1Pm)
A2 tuff bed (A2Pm)
A3 tuff bed (A3Pm)
A4 tuff bed (A4Pm)
A5 tuff bed (A5Pm)
Omachi Tephra (Omachi loam bed)
EPm Tephra
DPm Tephra
CPm Tephra
BSc Tephra
Omachi APm Tephra
Upper tephra
Middle tephra
Lower tephra
MG Tephra
B scoria bed (BSc)
C scoria bed (CSc)
D pumice bed (DPm)
E pumice bed (EPm)
Aira-Tn tuff bed (AT, Aira-Tanzawa pumice bed)
Aso-4 pumice bed (Aso-4)
Kakuto tuff bed
Yamajari formation
Seba tuff bed
Osakada formation
Higepami tuff bed (Pm-I')
Pm-1B
Pm-2A
Kikai-Tozuhara tuff bed (K-Tz)
Pm-2B
Pm-3A
Pm-3B
Pm-3C
Pm-3D
Pm-3E
Pm-3F
Pm-3G
Yukawa formation
Nashinoki formation
Nashinoki loam bed
Ontake volcano
Ueno basalt (Ueno lava)
Suzugasawa formation
Tarusawa formation
Takigoshi lava
Mikasayama lava
Kuragoehara lava
Tarusawa member
Ontakesan lava
Suekawa lava
Otaki formation
Okunoin lava
Denjogawa lava
Kisodani formation
Kipami pumice bed
ho-Kipami-I pumice bed
ho-Kipami-II pumice bed
Hinekuro tuff bed
Ontake-Yabuhara pumice bed (On-Yb)
Ontake-Ina pumice bed (On-In)
Ontake-Tatsuno pumice bed (On-Tt)
Ontake-Mitake pumice bed (On-Mt)
Kikai-Akahoya tuff bed (K-Ah)
Tsukahara lahar deposit
Takahara welded tuff bed
Shioda formation
Josho Lake Deposit
Younger Josho Lake Deposit
Older Josho Lake Deposit
Iwao formation
Nobeyamahara formation
Koumihara formation
Shiga welded tuff bed (Shiga lava)
Suekawa lahar deposit
Iizuna loam bed
Nishibayashi loam bed
Jizomine andesites
Toki formation
Kabutoiwa formation
Chikuma formation
Takano Formation
Hiraide formation
Umeumi volcanic products
Yokodake volcanic products
Yamaguchi volcanic products
Asama-Eboshi volcanoes
Iwayakannon lava
Stage I
Iwayakan'non stratovolcano
Iwayakan'non Lava
Stage II
Kokuzo Lava
Kanahara Lava
Omuro Lava
Ofuji Lava
Gotomiki Lava
Eboshidake stratovolcano
Upper Eboshidake Lava
Iwashimizu Formation
Narahara Lava
Lower Eboshidake Lava
Stage III
Kakuma-Nabebuta stratovolcano
Kakuma-Nabebuta volcanic products
Yunomaru lava dome
Yunomaru lava
Stage IV
Murakamiyama lava dome
Murakamiyama Lava
Mizunoto stratovolcano
Nishikagonotoyama lava dome
Nishikagonotoyama Lava
Higashikagonotoyama lava dome
Higashikagonotoyama Lava
Kurofu stratovolcano
Zappa stage
Kengamine stage (80 ka)
Mitsuone stage
Sennin stage
Sekisonzan lava dome
Koasama lava dome
Hanareyama lava dome
Hotokeiwa stratovolcano
Maekake stratovolcano
Takatsuya stratovolcano
Yatsugatake volcanoes
Northern Yatsugatake volcanoes
Tateshina Volcanic Rocks
Maetateshinayama Lava
Futagomine Lava
Tengudake Lava
Shirakomaike-toho Lavas
Maruyama Lava
Shimagareyama-toho Lava
Chausuyama Lava
Amaike-toho Lava
Shirakabadaira Lava
Ikenotaira-bokujo Lavas
Yokodake Basal Lava (Y1 lava)
Arakuragawa Lava
Yokoyakyo Lavas
Inagodake Lavas
Inagodake Pyroclastic Flow Deposit
Shirakoma-rindo Lava
Southern Yatsugatake volcanoes
Kiretto Andeiste
Nakadake Porphyrite
Minodonakayama lava
Lower Yokodake lava
Yokodake lava
Y2 lava
Y3 lava
Y4 lava
Y5 lava
Y6 lava
Y7 lava
Y8 lava
Y9 lava
Amaikeyama lava
Shimagareyama lava
Akaiwa lava
Reizan lava
Tateshinakogen lava
Shingyojiyama lava
Amidadake lava
Kasuga volcanic rocks
Akadake lava
Tateshina lava
Usonokuchi Gravel Bed
Oishigawa Scoria
Yabashira volcanoes
Kengamine volcanic body
Oishigawa Volcanic Rocks
Kengamine-jobu Lavas
Kengamine Pyroclastics
Chiyosato-bokujo Lavas
Kengamine-east Lavas
Komadeike Volcaniclastics
Honmagawa Lavas
Oishigawa Lavas
Chiyosato Lava
Kabutoiwa Lava
Yachiho-kogen Lavas
Oishigawa-futamata Lavas
Byobuiwa volcanic body
Fukinotaira Volcanic Rocks
Byobuiwa Lavas
Hosokojigawa Lava
Yabashirayama volcanic body
Yabashira Volcanic Rocks
Mizunashigawa Lavas
Oishi Lava
Yabashirazawa Lavas
Odakegawa Lavas
Iridogawa Lava
Oishigawa Pyroclastic Flow
Yagori Volcaniclastics
Ryugamine volcanic body
Nijinotaira Volcanic Rocks
Ryugamine Lavas
Kyowa-bokujo Lavas
Uyamazeki Lava
Tokin-no-iwa volcanic body
Kasuga Volcanic Rocks
Okawaratoge Pyroclastics
Karasawa Lavas
Nagato Lavas
Manitazawa Lava
Mochizuki Volcaniclastics
Kakumagawa Lava
Tatamiishi Lava
Kirigamine volcano
Kirigamine volcanic rocks
Kirigamine-II volcanic rocks
Lava domes and intrusive rocks
Denjoyama volcanic rocks
Takagiyama volcanic rocks
Yamagami volcanic rocks
Odaira volcanic rocks
Kirigamine-I volcanic rocks
Old intrusive rocks
Takagi volcanic rocks
Senbongi volcanic rocks
Tameike volcanic rocks
Horakuzawa volcanic rocks
Nishimochiya volcanic rocks
Old pyroclastic rocks
Upper old pyroclastic rocks
Lower old pyroclastic rocks
Hotokeiwa pyroclastic rocks
Azumaya volcano
Urakurayama volcanic edifice
Ikenotaira Lavas
Urakura Lavas
Kamitokusa Lavas
Kaminokai Lavas
Yonagokimyo Lavas
Akagawa Lavas
Nittazawa Lavas
Nekodake volcanic edifice
Neko Lavas
Roppoishi Lavas
Initial volcanic edifice
Daimyojinzawa Lava
Azumaya Lavas
Kamgawa Lavas
Ibaraki Lavas
Otani Lavas
Koikeyama Lavas
Yonago Lavas
Naruiwa volcano
Naruiwa Lavas
Satomiya Lava
Torikabuto volcano
Stage 3
Sarasarazawa Pyroclastic Flow Deposit
Dainenzan and Hikoemonzawa Pumice and Pyroclastic Flow Deposit
Stage 2
Torikabuto Summit Lava
Shirakurayama Lavas
Oneyama Lavas
Takizawa Lavas
Nunoiwayama Lavas
Stage 1
Uenohara Welded Tuff
Takayamazawa-Onizawa Pyroclastic Flow Deposit
Maekura Stage
Maekura Lavas and Pyroclastics
Kosha volcano
Iimoriyama Lava
Kosha Pumice Flow Deposit
Mitsugoyama Lava
Kosha Lithic Pyroclastic Flow Deposit
Koshashukazantai Lava
Kitahata Landslide Deposits
Karayama Landslide Deposits
Nukui Landslide Deposits
Higher 2 Terrace Deposits, Chikuma river
Higher 3 Terrace Deposits, Chikuma river
Lower 1 Terrace Deposits, Chikuma river
Lower 2 Terrace Deposits, Chikuma river
Gohogi Lake Deposit
Higher Terrace Deposit, Mount Jizuki
Middle Terrace Deposit, Ogawa river
Lower Terrace Deposit, Susobana river
Younger Debris Flow Deposit
Older Debris Flow Deposit
Older Fan Deposit
Pleistocene-Holocene
Sakayachi Formation
Sakasagawa Formation
Iizuna volcano caldera Lacustrine Deposit
Iizuna Volcanic-Fan Deposit
Kashiwabara Tephra
Younger Fan Deposit
Volcanic Fan Deposit
Holocene (0.01-0 Ma)
Yakedake volcano
Yakedake volcanic rocks
Kurohime volcano caldera Lacustrine Deposit
Lowest Terrace Deposits, Chikuma river
Investigation in progress
Shinshuminami tephra
New loam bed
Middle loam bed
Old loam bed
Yatsugatake tephra
Upper tephra
Middle tephra
Lower tephra
Sc-I' tuff bed
Sc-I tuff bed
Sc-II' tuff bed
Pm-I tuff bed
Pm-II tuff bed
Pm-II' tuff bed
Pm-III tuff bed
Pm-III' tuff bed
Pm-02 tuff bed
Pm-03 tuff bed
Pm-04 tuff bed
Pm-05 tuff bed
Pm-06 tuff bed
ODSc tuff bed
Kawakami pumice bed (KwP)
YPm-I tuff bed (RPm)
YPm-II tuff bed
YPm-III tuff bed
Kurosawa loam bed
Hakusu loam bed
Inagodake pyroclastic flow deposit
Ohinata plutonic rocks
Asamayama volcano
Hotokeiwa lava
Onioshidashi lava
Daiichi pumice flow deposit (P1)
Daini pumice flow deposit (P2)
Oiwake pyroclastic flow deposit
Agatsuma pyroclastic flow deposit
Kanbara pyroclastic flow deposit
Shimoichiba formation
Nirasaki lahar deposit
Obora formation
Ichinose formation
Norikura volcano
Bandokoro lava
Takamagahara lava
Ichinoike lava
Marishiten lava
Ebisu lava
Daikoku lava
Yotsuiwa lava
Eboshi lava
Taishoyama formation
Utsukushigahara tuff breccia
Omine dacite
Hirakura tuff breccia
Midogamine formation
Yokokawa formation
Warudaniyama volcanic rocks
Byobunoatama granophyre
Minamidake formation
Sanosakayama debris flow deposit
Miasa formation
Wachiba member
Yabusawa formation
Oishikawa formation
Hozumi formation
Shinshu loam bed
Shimosueyoshi loam bed
Inadani loam bed
New loam bed
Middle loam bed
Old loam bed
Kubo formation
Arafune basalt
Funatsu granite
Iizuna pyroclastic flow deposit
Ikejirigawa lahar deposit
Kisogawa lahar deposit
Kaikoma granite
Minamihara pyroclastic flow deposit
Ueno formation?
Sakashita formation
Harano formation
Takigoshi formation
Miyamae welded tuff bed
Sarumaru welded tuff bed
Komoro welded tuff bed
Arafune volcano
Lower Kabutoiwa lava
Upper Kabutoiwa lava
Arafune lava
Yokone lava
Moriizumiyama lava
Arafune welded tuff bed
Hongo welded tuff bed
Akaruyama welded tuff bed
Kiyosaki granodiorite
Kajitani formation
Geological structures
Itoigawa-Shizuoka tectonic line
Median tectonic line
Mikabu tectonic tline
Butsuzo tectonic line
Todai tectonic line
Fossa magna
Iwamurata-Wakamiko line
Atera fault
Saigawa fault
Naganobonchiseien fault
Misuzubashi fault
Kamishiro fault
Magometoge fault
Seinaiji fault
Hakushu thrust fault
Tagiri fault
Ogurogawa fault
Nishimachi fault
Nentsuji fault
Miharashiyama fault
Senno thrust fault
Iwairi thrust fault
Yashigamine fault
Takayama fault
Sakaitoge fault
Nashibora fault
Dogiri fault
Fujimidaihigashi fault
Misaka fault
Misakajinjya fault
Sonoharanishi fault
Sonohara fault
Sonoharahigashi fault
Chausuyama fault
Saruhashi fault
Kaesa fault
Nagae fault
Uchiyama fault
Sanchuchikotaihokuen fault
Sanchuchikotainanen fault
Kitaaiki fault
Minamiaiki fault
Otokoyama fault
Jumonjigoshodaira fault
Kawakami fault
Akaishi tectonic line
Misakubo-Akaishi tectonic line
Toyama-Akaishi tectonic line
Noma anticline
Jinda anticline
Nishikibe anticline
Ikari anticline
Tomikura anticline
Nagasawahara anticline
Nagamine anticline
Joshita syncline
Komiji syncline
Hakumaki syncline
Nakaawa syncline
Nanzenji syncline
Katashio syncline
Shigarami syncline
Oiwake volcanic graben
Hosoda fold zone
Saigawa disturbance zone
Akaishi central zone