M2

[ Top ] [ Japanese ]

M2

Accretionary complex
middle - late Eocene

Sedimentary facies: Marine
Lithofacies: Mudstone, Interbedded sandstone and mudstone
Lithofacies (Minor): Sandstone, Conglomerate
Sedimentary structures: Trace fossils, Current marks

Thickness: 50 - 1,300 m
Upper limit: Conformity (M3)

Mitogawa Formation
[ Upper ]
--------------
M3
--------------
M2
--------------
M1
/--/--/--/--/-
[ Lower ]

Muro Group (South)
[ Upper ]
/--/--/--/--/-
Shimotsuyu Formation
--------------
Mitogawa Formation
--------------
Wabuka Formation
/--/--/--/--/-
[ Lower ]

Shimanto Belt (Wakayama pref.)
[ Upper ]
/--/--/--/--/-
Koyasan Group = North Shimanto
/--/--/--/--/-
Hidakagawa Group = North Shimanto
/--/--/--/--/-
Nyunokawa Formation
/--/--/--/--/-
Otonashigawa Group
/--/--/--/--/-
Muro Group
/--/--/--/--/-
[ Lower ]

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

Distribution: Takimatadani valley - Horayama - Kobushigawa river - Kurumidani valley, Kozagawa city, Higashimuro county, Wakayama pref.; Ogama - Kokashitoge pass - Okauchigawa river - Nakanogawa river - Nishinogawa river - Detani valley - Susamigawa river - Numatadani valley - Ogushi - Okanokuroshima island - Cape Wabukazaki - Kuroshimadani valley, Susami city, Nishimuro county, Wakayama pref.

Tokuoka et al (1981) Geology of the Ryujin District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 69p. (in Japanese with English abstract 6p.)
Tateishi et al. (1979) Geology of the Esumi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 65p. (in Japanese with English abstract 6p.)