Nabae Group

Type locality: Nabae, Takahama city, Oi county, Fukui prefecture
Coherent formation
late Triassic, Carnian

Sedimentary facies: Shallow marine
Lithofacies: Sandstone, Shale
Lithofacies (Minor): Coal, Conglomerate

Thickness (Top): 150 m or thicker
Thickness (Upper): 400 m or thinner
Thickness (Middle): 350 m or thinner
Upper limit: Unconformity (Uchiura Group, Aobasan Andesites)
Lower limit: Unconformity (Maizuru Group)

Nabae Group (Nabae, Fukui pref.)
[ Upper ]
--------------
N₄ Formation
--------------
N₃ Formation
--------------
N₂ Formation
--------------
N₁ Formation
--------------
[ Lower ]

Central zone (Kyoto - Hyogo)
[ Upper ]
/--/--/--/--/-
Nabae Group
?--?--?--?--?-
Yakuno Group
~~~~~~~~~~~~~~
Maizuru Group
/--/--/--/--/-
[ Lower ]

Maizuru Belt
[ North ]
/--/--/--/--/-
North zone
/--/--/--/--/-
Central zone
/--/--/--/--/-
South zone
/--/--/--/--/-
[ South ]

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

Distribution: Nabae, Takahama city, Oi county, Fukui pref.; Monobe town, Ayabe city, Kyoto pref.; Maizuru city, Kyoto pref.
Fossils (Shellfishes): Anodontophora aff. manmuensis, Bakebellia monobensis, Cardinia triadica, Cuspidaria ayabensis, Gryphaea aff. keilhaui, Lima naumanni, Lima yataensis, Lima yataensis var. kuredaniensis, Megalodus sp., Mentzeliopsis ogawai, Minetrigonia hegiensis, Ostrea sp., Oxytoma sp., Palaeopharus maizurensis, Palaeopharus pausicostatus, Parallefodon monobensis, Plicatula hekiensis, Pseudolimea naumanni, Schafhautria astartiformis, Tosapecten suzukii, Velata maizurensis

Suda and Hayasaka (2009) Jour. Geol. Soc. Japan, vol.115, no.6, pp.266-287 DOI
Takemura et al. (2009) Jour. Geol. Soc. Japan, vol.115, Supplement, pp.123-137 DOI
Igi and Kuroda (1965) Oeyama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 81p. (in Japanese with English abstract 12p.)
Igi et al. (1961) Maizuru, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 49p. (in Japanese with English abstract 9p.)
Hirokawa et al. (1958) Obama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 31p. (in Japanese with English abstract 8p.)
Hirokawa and Kuroda (1957) Nokogirizaki, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 22p. (in Japanese with English abstract 9p.)