M1

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M1

Accretionary complex
Deposition: Cretaceous
Accretion: Eocene - early Oligocene (Fossils)

Sedimentary facies: Marine
Lithofacies: Shale
Lithofacies (Minor): Siliceous rocks

Thickness: ca. 200 m

Mikura Group
[ Upper ]
/--/--/--/--/-
Hogawa Formation
/--/--/--/--/-
[ Lower ]

Mikura Group (Shimizu, Shizuoka pref.)
[ Upper ]
/--/--/--/--/-
M4
/--/--/--/--/-
M3
/--/--/--/--/-
M2
/--/--/--/--/-
M1
/--/--/--/--/-
[ Lower ]

Shimanto Belt (Akaishi mountains)
[ Upper ]
/--/--/--/--/-
Akaishi Group
/--/--/--/--/-
Shirane Group
/--/--/--/--/-
Sumatagawa Group
/--/--/--/--/-
Inui Group
/--/--/--/--/-
Mikura Group
/--/--/--/--/-
[ Lower ]

Shimanto Belt
[ Upper ]
/--/--/--/--/-
Northern Shimanto Belt
/--/--/--/--/-
Southern Shimanto Belt
?--?--?--?--?-
[ Lower ]

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

Distribution: Shizuoka pref.

Sugiyama and Shimokawa (1990) Geology of the Shimizu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 103p. (in Japanese with English abstract 8p.)