Shioda Formation

Shioda Formation (Suzuki, 1932) Noda and Okumura, 2002

Invalid synonym: Taima Formation, Zama Formation

Type locality: Shioda, Tana, Chuo ward, Sagamihara city, Kanagawa prefecture
Coherent formation
early Pleistocene

Lithofacies: Silt
Lithofacies (Minor): Pumiceous tephra

Thickness: 65 m or thicker
Upper limit: Unconformity (Echi Formation, Terrace deposit)
Lower limit: Top of Sd1 Tephra
Lower limit: Conformity (Otsuka Formation)

Nakatsu Group
[ Upper ]
~~~~~~~~~~~~~~
Shioda Formation
--------------
Otsuka Formation
--------------
Shimizu Formation
--------------
Kanzawa Formation
--------------
Kosawa Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Shioda - Mochi, Tana, Chuo ward, Sagamihara city, Kanagawa pref.; Taishozaka, Shimomizo, Minami ward, Sagamihara city, Kanagawa pref.; Yasegawa river, Taima, Minami ward, Sagamihara city, Kanagawa pref.; Mutsukura, Nakatsu, Aikawa city, Aiko county, Kanagawa pref.; Nagasaka, Kamiechi, Atsugi city, Kanagawa pref.
Fossils: Fishes, Shellfishes (Bathyal, Chemosynthetic community), Plants, Foraminifera
Tephra: Sd100, Ysg5

Ueki et al. (2013) Geology of the Hachioji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 137p. (in Japanese with English abstract 6p.)