Kaifushi Formation

[ Top ] [ Japanese ]

Kaifushi Formation Shiba et al., 1989

Coherent formation
Trough basin-fill deposit at the collision boundary between Izu-Bonin-Mariana arc and Southwest - East Japan island arc
Back-arc basin volcanic activity at the back-arc basin of Izu-Bonin-Mariana arc
late Miocene - Pliocene

Sedimentary facies: Marine
Lithofacies: Interbedded sandstone and mudstone

Thickness: 300 m or thicker

Fujikawa Group (northern Shimizu, Shizuoka pref.)
[ Upper ]
--------------
Kaifushi Formation
--------------
Jishabatake Formation
--------------
Ishizawagawa Formation
--------------
Honokubo Formation
--------------
Kochi Formation
--------------
[ 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.)