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List of geological units in Ibaraki prefecture
A list of stratigraphic units, igneous bodies, and geological structures reported from Ibaraki prefecture, Kanto region, Honshu island, Japan.
Photographs of geological units in Ibaraki prefecture
- Paleozoic
- Takanuki metamorphic rocks
- Kasama group
- Cambrian (541.0-485.4 Ma)
- Hitachi Metamorphic Rocks
- Hitachi Volcanoplutonic Complex
- Akazawa Formation
- Tamadare Formation
- Carboniferous (358.9-298.9 Ma)
- Hitachi Metamorphic Rocks
- Daioin Formation
- Omika Formation
- Permian (298.9-252.17 Ma)
- Hitachi Metamorphic Rocks
- Ayukawa Formation
- Triassic-Jurassic
- Yamizo group
- Karasuyama formation
- Torinokoyama formation
- Yamizosan formation
- Keisokusan formation
- Isehata formation
- Kunimisan formation?
- Takatori formation
- Keisoku group
- Jurassic (201.3-145.0 Ma)
- Sarukubo formation
- Ashio Belt
- Takatori Unit
- Kunimiyama Unit
- Kasama Unit
- Cretaceous (145.0-66.0 Ma)
- Nakaminato Group
- Isoai Formation
- Hiraiso Formation
- Chikko Formation
- Gozaisho metamorphic rocks
- Hitachi Metamorphic Rocks
- Nishidohira Formation
- Takizawa Formation
- Kanayama volcanic rocks
- Irishiken Granodiorites
- Tsukubasan Gabbroic Body
- Tsukubasan mass
- Dorokujin mass
- Cretaceous-Paleogene
- Wagakunisan Metamorphic Rocks
- Tsukuba Metamorphic Rocks
- Oarai Formation
- Paleocene (66.0-56.0 Ma)
- Tsukuba Granite
- Kabasan Granite
- Inada Granite
- Eocene (56.0-39.0 Ma)
- Shiramizu Group
- Iwaki Formation
- Oligocene (39.0-23.03 Ma)
- Shiramizu Group
- Shirasaka Formation
- Asagai Formation
- Miocene (23.03-5.33 Ma)
- Tonoyama Formation
- Taga Group
- Otsu channel
- Ot3 Unit
- Ot2 Unit
- Ot1 Unit
- Hirakata channel
- Hr5 Unit
- Hr4 Unit
- Hr3 Unit
- Hr2 Unit
- Hr1 Unit
- Namekawa Formation
- Ayukawa Formation
- Ajigaura Pumiceous Tuff Member
- Hetano Pumiceous Tuff Member
- Yunagaya Group
- Kamenoo Formation
- Mizunoya Formation
- Goyasu Formation
- Taki formation
- Shirado Group
- Takaku Group
- Kokozura Formation
- Kazekinokusa Formation
- Yuridaira Formation
- Uchiono Formation
- Nishizome Formation
- Kurosawa group
- Konamase Formation
- Somewada formation
- Nawashiroda Formation
- Nantaisan Volcanic Breccia (Nantaisan formation)
- Asakawa group
- Takikura formation
- Asakawa Formation
- Nakazawa member
- Oenchi member
- Kanazawa formation
- Tochibara Rhyolites
- Kitatage Formation
- Osawaguchi Tuff Member
- Nakatsuhara Volcanic Breccia
- Nabeashiyama formation
- Nishinouchi formation
- Nishinouchi member
- Tashiro formation
- Nanatsugane formation?
- Seki formation
- Shionokusa formation
- Okado formation
- Zuiryu formation
- Honai formation
- Kuniosa formation
- Sakuramoto formation
- Tamagawa formation
- Sakachi formation
- Araya formation
- Katsumizawa formation
- Ishizuka formation
- Nemoto formation
- Nakanishi formation
- Iitomi formation
- Higashikanasayama formation
- Hase Formation
- Kawarago Formation
- Miocene-Pliocene
- Hitachi Group
- Kume Formation
- Sukegawa Formation
- Pliocene (5.33-2.58 Ma)
- Hitachi Group
- Hanareyama Formation
- Hitachi formation
- Hatsuzaki group
- Pleistocene (2.58- 0.01Ma)
- Shimosa Group
- Joso Formation
- Ryugasaki Formation
- Kioroshi Formation (Miwa Formation, Upper Narita Formation)
- Namegata Member
- Kenjaku Member (upper Kamiiwahashi Formation)
- Yokota Formation
- Kiyokawa Formation (lower Kamiiwahashi Formation, Lower Narita Formation)
- Kamiizumi Formation
- Yabu Formation (Ishizaki Formation)
- Tomobe Formation
- Kanto loam formation
- Tachikawa loam formation
- Musashino loam formation
- Ibaraki Clay Formation
- Ij-MO Tephra
- Ag-KP Tephra
- Takaragi loam bed
- Tabaru loam bed
- Itahana pumice bed (YP)
- Hassaki pumice bed (HP)
- Shichihonzakura pumice bed (SP)
- Tokyo pumice bed
- Teno formation
- Sakuragawa Terrace Deposit
- Nukada Terrace Gravels
- Uwaichi Terrace Gravels
- Yada Terrace Gravels
- Kurisaki Terrace Gravels
- Higher Terrace Deposit, Makabe
- Middle II Terrace Deposit, Makabe
- Lower Terrace Deposit, Makabe
- Hinuma Terrace Gravels
- Age unknown
- Tabito granite
- Kamishiro granite
- Geological structures
- Tanakura fault (Tanagura fault, Tanakura fracture zone)
- Asabo fault