[ Top ] [ Japanese ]
Kamiaso Unit (Wakita, 1988)
Synonym: Kamiaso Formation
- Type locality: Kamiaso, Hichiso city Kamo county, Gifu prefecture
- Accretionary complex
- Deposition (Basalt): middle Permian
- Deposition (Limestone): middle Permian (Fusulinids)
- Deposition (Siliceous claystone): Early Triassic
- Deposition (Chert): Middle Triassic - Early Jurassic (ca. 212 Ma, Rb-Sr)
- Deposition (Siliceous mudstone): Middle Jurassic (ca.150 Ma, K-Ar; ca.180 Ma, Rb-Sr)
- Deposition (Mudstone): Middle - Late Jurassic
- Deposition (Sandstone): Middle - Late Jurassic, Bathonian - Callovian (Ammonoids)
- Accretion: Jurassic
- Correlation: Sawando Complex, Kuzu Complex, Unit 1, Takatori Unit
- Sedimentary facies: Marine
- Sedimentary facies (Sandstone): Turbidite
- Lithofacies: Coherent facies (Chert-clastic sequence)
- Lithofacies (Top): Sandstone, Conglomerate
- Lithofacies (Upper): Interbedded sandstone and mudstone
- Lithofacies (Middle): Siliceous mudstone
- Lithofacies (Lower): Chert
- Lithofacies (Bottom): Siliceous claystone
- Lithofacies (Bottom, Minor): Basalt tuff breccia, Tuff
- Sedimentary structures (Sandstone): Graded bedding, Sole marks, Parallel stratification, Convolute lamination, Slump structures
- Paleocurrent (Sandstone): from Southwest to Northeast
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Kamiaso, Hichiso city Kamo county, Gifu pref.; Yutani, Hachiman town, Gujo city, Gifu pref.; Mikura - Hoshimaru, Wara town, Gujo city, Gifu pref.; Kamikowa, Mino city, Gifu pref.; Tominoho - Hasama, Seki city, Gifu pref.; Lake Kanboraike - Unuma - Kakamigahara park - Taianji temple - Tsutsujigaoka - Matsugaoka, Kakamigahar city, Gifu pref.; Mitahora - Mount Kinkazan, Gifu city, Gifu pref.; Inuyama region, Aichi pref.
- Fossils (Sandstone): Ammonoids (Coffatia (Subgrossouvria) sp.), Wood fragments (Cupressionoxylon sp.Taxaceoxylon sp.)
- Fossils (Mudstone, Trace fossils): Chondrites isp.
- Fossils (Limestone, Fusulinids): Schwagerina crassitectoria, Schwagerina diversiformis
- Fossils (Conodonts): Epigondolella abneptis, Misikella posthernsteini, Paragondolella navicula
- Fossils (Radiolarians): Acanthocircus hexagonus, Acanthocircus suboblongus, Acanthocircus tetraspinus, Amphipyndax? sp., Andromeda sp., Archaeodictyomitra rigida, Archaeospongoprunum compactum, Archaeospongoprunum tenue, Archicapsa sp., Canoptum sp., Capnodoce anapetes, Capnodoce sarisa, Capnuchosphaera theloidea, Capnuchosphaera triassica, Cinguloturris carpatica, Cyrtocapsa mastoidea, Dictyomitra pessagnoi, Dictyomitrella deweveri, Dictyomitrella? kamoensis, Emiluvia? sp., Eucyrtidiellum unumaense, Gorgansium sp., Hsuum sp., Lithocampe? cf. nudata, Lithostrobus sp., Mirifusus sp., Napora robusta, Pachyoncus sp., Pantanellium foveatum, Parahsuum simplum, Parasaturnalis sp., Parvicingula sp., Perispyridium? cf. ordinarium, Poulps? sp., Protunuma cf. fusiformis, Ristola? turpicula, Saitoum sp., Saurodoras variabilis, Sethophaeena? sp., Spongocapsula? sp., Stichocapsa japonica, Stichocapsa cf. naradaniensis, Stichopilium sp., Stylocapsa cf. tecta, Syringocapsa cf. batodes, Theocapsomma cordis, Theocorys sp., Tricolocapsa conexa, Tricolocapsa? fusiformis, Tricolocapsa plicarum, Tricolocapsa cf. rüsti, Trillus sp., Trilonche japonica, Tripocyclina cf. acythus, Tripocyclina japonica, Triposphaera sp., Unuma echinatus, Yeharaia annulata, Yeharaia elegans, Yeharaia japonica, Zartus cf. dickinsoni, Zhamoidellum sp.
- Ito et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.6, pp.249-259, DOI
- Sato and Onoue (2010) Jour. Geol. Soc. Japan, vol.116, no.10, pp.575-578 DOI
- Sano et al. (2010) Jour. Geol. Soc. Japan, vol.116, no.6, pp.321-340 DOI
- Yamakita and Otoh (2000) Structural Geology, vol.44, pp.5-32
- Yoshida and Wakita (1999) Geology of the Gifu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 71p. (in Japanese with English abstract 4p.)
- Wakita (1995) Geology of the Mino District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 36p. (in Japanese with English abstract 3p.)
- Wakita and Koido (1994) Geology of the Gero District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 5p.)
- Mizutani and Koido (1992) Geology of the Kanayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 9p.)