Douden Formation

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Douden Formation Suzuki et al., 2019

Type locality: Doden - Kurabashira river, Hirase, Kamitakara town, Takayama city, Gifu prefecture
Coherent formation
Early Jurassic, Pliensbachian - Toarcian (186 - 181 Ma)
Correlation: Jogodani Formation, Gamaharazawa Formation, Kitamatadani Formation

Lithofacies (Upper): Interbedded sandstone and mudstone
Lithofacies (Upper, Minor): Conglomerate, Sandstone
Lithofacies (Lower): Interbedded sandstone and mudstone, Sandstone
Sedimentary structures: Graded bedding, Parallel stratification, Cross stratification, Convolute lamination

Thickness: 350 m or thicker

Douden Formation
[ Upper ]
/--/--/--/--/-
Upper part
--------------
Lower part
/--/--/--/--/-
[ Lower ]

Hida Gaien Belt (Nyukawa - Kamitakara, Gifu pref.)
[ Upper ]
/--/--/--/--/-
Douden Formation
/--/--/--/--/-
Tandodani Formation
/--/--/--/--/-
Moribu Formation
/--/--/--/--/-
Arakigawa Formation
/--/--/--/--/-
Rosse Formation
/--/--/--/--/-
[ Lower ]

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

Distribution: Doden - Kurabashira river, Hirase, Kamitakara town, Takayama city, Gifu pref.

Suzuki et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.4, pp.307-322 DOI
Isomi and Nozawa (1957) Funatsu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 43p. (in Japanese with English abstract 8p.)