[ Top ] [ Japanese ] [ Other prefectures ]
List of geological units in Tochigi prefecture
A list of stratigraphic units, igneous bodies, and geological structures reported from Tochigi prefecture, Kanto region, Honshu island, Japan.
Photographs of geological units in Tochigi prefecture
- Triassic (252.17-201.3 Ma)
- Yamizo group
- Jurassic (201.3-145.0 Ma)
- Ashio Belt
- Kuzu Complex
- Unit 3
- Unit 2
- Unit 1
- Gyodosan Complex
- Karasuyama Unit
- Tochigi Complex
- Chichibu formation
- Mashiko group
- Kuriyama Formation
- Cretaceous (145.0-66.0 Ma)
- Kobugahara Granodiorite
- Matsuki Quartz Porphyry
- Matsuki-type Granitic Rocks
- Matsuki body
- Barakura body?
- Hirataki body
- Sori-type Granitic Rocks
- Sori Granodiorite
- Ashikaga Body
- Kanoiri body
- Cretaceous-Paleogene
- Kinugawa Granite
- Okunikko Rhyolites
- Nagahata Acidic Rocks
- Cretaceous-Eocene
- Chuzenji-type Acidic Rocks
- Neogene
- Jizodake Rhyolite
- Jizodake Dacite
- Miocene (23.03-5.33 Ma)
- Myogazawa Formation
- Hanzoyama Andesite
- Nagadozaka formation
- Nakagawa Group
- Motegi Formation
- Yamanouchi Formation
- Motokozawa Formation
- Motokozawa Basalt
- Ichiba Formation
- Kinugawa rhyolites
- Kanuma group
- Fukaiwa formation
- Momiyama Formation
- Hinata Formation
- Utsunomiya group
- Ozo Formation
- Oya Formation
- Upper part
- I Bed
- II Bed
- III Bed
- IV Bed
- V Bed
- S2 Bed
- Lower part
- VI Bed
- S3 Bed
- VII Bed
- S4 Bed
- VIII Bed
- Yokoyama Formation
- Kasamatsuyama Formation
- Kazamiyamada Formation
- Tamanyu Welded Tuff Member
- Tadokoro formation
- Takashio formation
- Tamada formation
- Arakawa Group
- Irieno Formation
- Shimohanawa Tuffaceous Sandstone Member
- Tanokura Formation
- Asabu Sandstone Member
- Hongo Sandstone Member
- Ogane Formation
- Yoshida Shell Bed
- Upper Ogane Shell Bed
- Middle Ogane Shell Bed
- Lower Ogane Shell Bed
- Takase Shale Member
- Kobana Formation
- Kamasekura Tuff Member
- Mangyo Tuff Member
- Upper Morita Pumice Tuff Member
- Lower Morita Pumice Tuff Member
- Shioya group
- Sekiya formation
- Kanomatazawa formation
- Fukuwata formation
- Ashio Rhyolitic Welded Tuff
- Hikoma Formation
- Iwafune formation
- Pliocene (5.33-2.58 Ma)
- Maruyama rhyolite
- Kotaki rhyolite?
- Neogene-Pleistocene
- Kinunumayama Lava
- Nenakusayama Lava
- Pleistocene (2.58- 0.01Ma)
- Kawasaki group
- Sakaibayashi Formation
- Shiobara group (Shiobara formation)
- Akagawa formation
- Miyajima formation
- Nakashiobara volcanic breccia
- Sumaki formation
- Namegawa Debris Flow Deposit
- Koshin volcano
- Kaneda Lava Dome
- Kaneda Lava
- Omanako volcano
- Taro volcano
- Tarosan Lava
- Sannoboshi volcano
- Mitsudake volcano
- Mitsudake Lava
- Nantai volcano
- Yudonosawa Andesite
- Osawa Pyroclastic Flow Deposit
- Onagi Welded Tuff
- Kegon Lava
- Osawa Lava
- Kesamaru volcano
- Honkesamaru Lava
- Maekesamaru Lava
- Shirakawa Pyroclastic Flow Deposits
- Tenei Pyroclastic Flow Deposit
- Nishigo Pyroclastic Flow Deposit
- Ashino Pyroclastic Flow Deposit
- Kumado Pyroclastic Flow Deposit
- Takahara volcano
- Takahara volcanic rocks
- Stage 7
- Stage 6
- Stage 5
- Stage 4
- Stage 3
- Stage 2
- Otawara Pyroclastic Flow Deposits
- Shiobara-Otawara Tephra
- Shiobara-Otawara Pyroclastic Flow Deposit
- Upper unit
- Middle unit
- Lower unit
- Shiobara-Otawara Surge Deposit
- Shiobara-Otawara Pumice Fall Deposit
- Shiobara-Tanohara Pyroclastic Flow Deposit
- Shiobara-Tanohara Pyroclastic Flow Deposit a
- Shiobara-Tanohara Pyroclastic Flow Deposit b
- Shiobara-Tanohara Pyroclastic Flow Deposit c
- Shiobara-Tanohara Pyroclastic Flow Deposit d
- Shiobara-Katamata Pyroclastic Flow Deposit
- Sawada Pumice Fall Deposit
- Stage 1
- Funaishi Formation
- Tawara Loam
- Takaragi Loam
- Hoshakuji Loam
- Tomatsuri Loam
- Nemoto Loam
- Nemoto 13 Tephra
- Nemoto 14 Tephra
- Ij-MO Tephra
- Kn-KD Tephra
- Hr-MZ Tephra
- Hr-HP
- Ag-MzP1 Tephra
- Ag-MzP2 Tephra
- Ag-MzP5 Tephra
- Ag-MzP6 Tephra
- Ag-MzP7 Tephra
- Ag-MzP8 Tephra
- Ag-MzP9 Tephra
- Ag-MzP10 Tephra
- Ag-KP Tephra
- Ag-NM1 Tephra
- Ag-NM2 Tephra
- Yaita Tephra
- Nk-SO Tephra
- Nk-NM Tephra
- Nk-MA Tephra
- Nk-HG Tephra
- Nt-I Tephra
- Nt-S Tephra
- Nt-OG Tephra
- As-YP Tephra
- Takao pyroclastic flow deposit
- Osawa pyroclastic flow deposit
- Ontake-1 tephra (Om-Pm1)
- Hakone-Tokyo tephra (Hk-TP)
- Aira-Tn tephra (AT)
- Kataoka scoria bed
- Nikko volcanic rocks
- Nasu volcanic rocks
- Higher Terrace Deposit, Watarase river
- Middle Terrace Deposit, Watarase river
- Lower Terrace Deposit, Watarase river
- Kamikake Terrace Deposit
- Hoshakuji Terrace Deposit
- Kanuma Terrace Deposit
- Shimotsuke-Osawa Terrace Deposit
- Shirasawa Terrace Deposit
- Takaragi Terrace Deposit
- Tawara Terrace Deposit
- Lowest Terrace Deposit, Kinugawa river
- Kuzu Formation
- Pleistocene-Holocene
- Shirane volcano
- Shiranesan Lava
- Nantai Tephra
- Holocene (0.01-0 Ma)
- Omaru pyroclastic flow deposit
- Chausu scoria bed
- Haruna-Futatsudake pumice bed (Hr-FP, Ikaho tephra)
- Age unknown
- Kuroiso pyroclastic rocks (Kuroiso volcanic breccia)
- Hangetsusan welded tuff bed
- Fukazawa granodiorite porphyry
- Sukai adamellite
- Chuzenji adamellite
- Ryuzunotaki pumice flow deposit
- Arasawa pumice flow deposit
- Takayama granites
- Konsei lava (Konseiyama lava?)
- Yunishigawa group
- Ofujiyama debris flow deposit
- Akadaki formation
- Toba pumice flow deposit
- Takiyama andesite (Taki andesite)
- Nasu volcano
- Hinode lava
- Shirazasayama lava
- Kurooyadake lava
- Minamigassan lava
- Nishiokura lava
- Inkyokura lava
- Sanbonyaridake lava
- Higashiokura lava
- Asahidake lava
- Kumamisone lava
- Wadayama volcanic breccia
- Shionoyu formation
- Shiobara lava
- Furumachi formation
- Inada granite
- Kinushima formation
- Geological structures
- Sekiya fault (Sekiya tectonic line)
- Kuzuu thrust fault