[ Top ] [ Japanese ]

Miwa Member

• Accretionary complex
• Accretion: early - middle Miocene

• Sedimentary facies: Marine
• Sedimentary facies: Trench-fill deposit at the trench and the oceanic side slope of accretionary complex
• Depth of water: Shallower than Hanazawa Member (Foraminifera)
• Lithofacies: Interbedded tuff breccia, tuffaceous sandstone and mudstone

• Thickness: 150 m or thicker
• Lower limit: Conformity (Main part)

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

• Distribution: Miwa - Yamadanotani, Fujieda city, Shizuoka pref.; Sakamoto, Yaizu city, Shizuoka pref.
• Fossils (Foraminifera): Globigerina sp., Globigerinoides sp., Hoeglundina sp., Lenticulina sp., Nodosalia or Dentalina, Pyrgo sp., Sigmoilopsis schlumbergeri

• Sugiyama et al. (1982) Geology of the Shizuoka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 82p. (in Japanese with English abstract 9p.)