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Sekumi Complex Nakae et al., 2002

Invalid synonym: Sekumi Group

• Type locality: Sekumi, Wakasa city, Mikatakaminaka county, Fukui prefecture
• Accretionary complex
• Deposition (Limestone): early - middle Permian (Fusulinids)
• Deposition (Chert): early Permian - Early Jurassic (Radiolarians)
• Deposition (Siliceous mudstone): Late Triassic, Jurassic (Radiolarians)
• Deposition (Mudstone): Early Jurassic (Radiolarians)
• Middle Jurassic
• Correlation: Shuzan Complex

• Sedimentary facies: Marine
• Lithofacies: Mélange facies
• Matrix: Mudstone
• Exotic blocks (Upper, Crusts): Basalt -Dolerite pyroclastic rocks, Chert, Mudstone, Sandstone, Siliceous mudstone
• Exotic blocks (Slabs): Basalt - Dolerite pyroclastic rocks, Chert, Sandstone, Mudstone

• Thickness: 4,200 m or thicker
• Thickness (Upper): 3,000 m or thicker
• Upper limit: Thrust fault (Ultra-Tamba Belt)
• Lower limit: Thrust fault (Mukasa Complex)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Sekumi - Shakushi - Tsunegami, Wakasa city, Mikatakaminaka county, Fukui pref.; Nishizu - Ano - Tagarasu - Otani - Yashiro - Ohama, Obama city, Fukui pref.; Hiruga - Sasada, Mihama city, Mikata county, Fukui pref.
• Fossils (Fusulinids): Cancellina sp., Misellina sp., Neoschwagerina craticulifera, Neoschwagerina margaritae, Neoschwagerina simplex, Parafusulina cf. edoensis, Parafusulina gigantea, Parafusulina kaerimizensis, Paraschwagerina oblonga, Pseudodoliolina sp., Pseudofusulina crassiseptata, Pseudofusulina granumavenae, Pseudofusulina japonica, Schubertilla sp., Triticites sp.
• Fossils (Radiolarians): Albaillella cf. protolevis, Albaillella sinuata, Archaeodictyomitra spp., Bagotum spp., Betraccium deweveri, Betraccium perilense, Canoptum sp., Dictyomitrella sp., Entactinia? sp., Entactinosphaera? sp., Eucyrtidiellum spp., Follicucullus? sp., Hsuum cf. infirmum, Latentifistula sp., Lupherium sp., Pantanellium? sp., Parahsuum sp., Parvicingula cf. gigantocornis, Pseudoalbaillella cf. longicornis, Pseudoalbaillella cf. scalprata, Pseudodictyomitra? sp., Stichocapsa spp., Syringocapsa sp., Tranhsuum sp., Tricolocapsa spp., Trillus spp., Unuma spp., Zarius sp.

• Nakae et al. (2002) Geology of the Nishizu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 90p. (in Japanese with English abstract 3p.)