Shizuoka Formation

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Shizuoka Formation Matsuda, 1961

Coherent formation
Trough basin (Fujigawa Trough) -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 (Foraminifera)

Sedimentary facies: Marine
Lithofacies: Interbedded sandstone and mudstone, Sandstone

Thickness: 3,000 m or thicker

Shizuoka Formation
[ Upper ]
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Tsukiyo Member
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Oritsuki Member
?--?--?--?--?-
Kaibushi Member
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[ Lower ]

Fujikawa Group (Western zone)
[ Upper ]
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Shizuoka Formation
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[ Lower ]

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

Distribution: Shizuoka pref.
Fossils (Lower, Foraminifera): Globorotalia tumida plesiotumida, Pulleniatina primalis

Sugiyama and Matsuda (2014) Geology of the Nanbu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 134p. (in Japanese with English abstract 5p.)