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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
Hida Marginal Belt
Oeyama Ophiolite
Carboniferous (358.9-298.9 Ma)
Renge Belt
Hida Marginal Belt
Renge Metamorphic Rocks (Omi Metamorphic Rocks)
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
Permian (298.9-252.17 Ma)
Akiyoshi Belt
Himekawa Complex
East Unit
Middle Unit
West Unit
Kotaki Complex
Tsuchikurazawa Limestone
Maizuru Belt
Mushikawa Formation
Kuratani Metamorphic Rocks
Kotozawa Igneous Rocks
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
Ashio Belt
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
Senmi Complex
Kando Subcomplex
Takiya Subcomplex
Cretaceous (145.0-66.0 Ma)
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
Ishizaka Formation
Kogawa Granite
Ninojidake Granite
Kajigawa Granodiorite
Eburisashidake Granodiorite
Iidesan Granodiorite
Garnet-biotite-muscovite Granite
Kusozu Granite
Mikaguradake Granite
Oyu Granite
Kuromatagawa Granite
Daikura Granite
Daigenta Granite
Minakami Quartz Diorite
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
Budo 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
Sennozawa Formation
Imai Formaiton
Yamamoto Formation
Yamamoto Formation
Nechi Basalt
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
Otbt
Isbt
Miyanoshita Quartz Diorite Porphyry
Okutadami Green Tuff Formation
Daishojinokashira Basalt Formation
Shigekuradake Conglomerate Formation
Makihata Body
Tanigawa Body
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
Obp Tephra
Obg Tephra
Jsp Tephra
Uchisugawa formation
Yamadagawa formation
Nakayama Formation
Nodani Formation
Nakanomata Member
Sugawa Formation
Kiwadahara Tuff
Takatoko Tuff
Tani Tuff
Amamizukoshi Tuff
Nechi Formation
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
Eboshiyama Volcanic Rocks
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
Atosugiyama Formation
Tanne Formation
Umikawa Formation
Nigorigawa Formation
Nishitajiri Formation
Shitoka 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
Pliocene-Pleistocene
Nishiyama Formation
Inagawa Sandstone Member
Hamatsuda facies
Ya Tephra
Ya-1
Ya-2
Ya-3
Ya-4
Ya-5
Ya-6
Znp Tephra
Ywg Tephra
Sdp Tephra
Sdp-A
Sdp-B
Sdp-C
Ykp Tephra
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
Jp Tephra
Tsp Tephra
Tsp-1
Tsp-2
Tsp-3
Tsp-4
Ngm Tephra
Fup Tephra
Fup-1
Fup-2
Fup-3
Fup-4
Fup-5
Fup-6
Chw Tephra
Chw-1
Chw-2
Chw-3
Chw-4
Sig Tephra
Tzw Tephra
Arg Tephra
Arg-1
Arg-2
Ocg Tephra
Jsg Tephra
Uonuma Formation
Lower member
Furuto Formation
Wz Tephra
Ko Tephra
Minagawa Formation
Ftg Tephra
Fgg Tephra
Mfsg Tephra
Osg Tephra
Stw Tephra
Hap-2 Tephra
Krzg Tephra
Mdp Tephra
Mdp-1
Mdp-2
Gjd40 Tephra
Gjd64 Tephra
Gjd69 Tephra
Gjd70 Tephra
SK085 Tephra
Komp Tephra
Omig Tephra
Usg Tephra
NA2 Tephra
NA3 Tephra
NA4 Tephra
NA4.2 Tephra
NA6 Tephra
NA6.5 Tephra
NA7 Tephra
NA9 Tephra
OK-2 Tephra
OK-5 Tephra
Kakuma Formation
Fwg Tephra
Hgp Tephra
Uykp Tephra
Mhb Tephra
Skwc Tephra
Mot Tephra
Gjd34 Tephra
Gjd35 Tephra
Gjd39 Tephra
KK10 Tephra
KK20 Tephra
KK30 Tephra
KK40 Tephra
HZG1 Tephra
HZG2 Tephra
Htp Tephra
Ctg Tephra
Ttp Tephra
YT Tephra
Tzp Tephra
Syp Tephra
Kwp Tephra
Oyp Tephra
Oyl Tephra
Thp Tephra
Ftp
NA10 Tephra
NA11 Tephra
NA12 Tephra
NA12.8 Tephra
NA13 Tephra
NA13C Tephra
NA13D Tephra
NA14 Tephra
NA16 Tephra
NA18 Tephra
NA19 Tephra
NA75 Tephra
NA80 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
Banjin Sand
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
Sori Member
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
Seki Lava
Igarashi Pyroclastic Flow Deposit
Igarashisekishoku Lava
Igarashi Lava Dome
Yuzawa Lava Dome
Horikiri Lava
Upper Yuzawa Lava
Yuzawa Lava V
Yuzawa Lava IV
2nd stage products
Okusoechi Pyroclastic Flow Deposit
Okusoechi Lava
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
Iwappara Lava
Oharakokushoku Lava
Naeba volcano
4th stage products
3rd stage products
2nd stage products
1st stage products
Older Naeba volcanic products
Higher Terrace Deposits, Awashima island
Shinanogawa Loam
Kaisaka Loam
Maibara Loam
Taniage Loam
Takaba Loam
Uonogawa 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
Kota Formation
Ainokaze Formation
Hirayama Formation
Upper member
Lower member
Noroshidai Loam
Ogai Loam
Hanabusa Loam
Hirayama Loam
Haizume Formation
Funabashi Sand Formation
Og Tephra
Yih Tephra
SK030 Tephra
JA-O18L Tephra
Shirozara-I tuff bed
Shirozara-II tuff bed
Ot Tephra
Se Tephra
Komanoma Formation
Komanoma Tephra
Irajima Tuff
Asakusa volcano
Onigatsura Volcanic Rocks
Tadamisawa Lavas
Nishi Formation
Masugatayama Lava
Uenohara Formation
Nosegahara Formation
SK100 Tephra
SK130 Tephra
Kajiyashiki formation
Sn-KB Tephra
Sn-SK Tephra
Hu-TG Tephra
As-K Tephra
My-Hb Tephra
Ontake-Katamachi pumice bed
Daisen-Kurayoshi pumice bed (DKP)
AT Tephra
Kamitaru pumice bed
Nihongi debris flow deposit
Kh-Od Tephra
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
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
Kubiki Loam
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 Deposit
Maekawa Mudflow Deposits
Sekigawa Formation
Noda 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
Nm-NK Tephra
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
Investigation in progress
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