Tokurazawa Formation

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Tokurazawa Formation

Invalid synonym: Tokura Formation

Coherent formation
Early Cretaceous
Correlation: Tetori Group

Sedimentary facies: Marine
Sedimentary facies: Continental shelf
Lithofacies: Slate
Lithofacies (Minor): Sandstone

Katashina Belt
[ Upper ]
/--/--/--/--/-
Tokurazawa Formation
/--/--/--/--/-
Iwamuro Formation
/--/--/--/--/-
Okutone Group
/--/--/--/--/-
[ Lower ]

Joetsu Belt
[ Upper ]
/--/--/--/--/-
Katashina Belt
/--/--/--/--/-
Tanigawadake Belt
/--/--/--/--/-
[ Lower ]

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

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

Distribution: Gunma pref.

Takahashi et al. (2004) Geology of the Suhara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 80p. (in Japanese with English abstract 4p.)
Chihara and Komatsu (1992) Geology of the Hakkaisan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 107p. (in Japanese with English abstract 8p.)