Shimizu Formation

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Shimizu Formation Ito, 1985

Type locality: Shimizu, Tana, Chuo ward, Sagamihara city, Kanagawa prefecture
Coherent formation
late Pliocene (Paleomagnetism)

Sedimentary facies: Marine
Sedimentary facies (Minor): Debris flow deposit, Slump scar-fill deposit
Lithofacies: Silt
Lithofacies (Minor): Sands
Sedimentary structures: Parallel stratification, Low-angle trough cross-stratification, Slump structures, Channel structures

Thickness: 130 m
Upper limit: Conformity (Otsuka Formation), Unconformity (Terrace deposits)
Lower limit: Conformity (Kanzawa Formation)

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

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

Distribution: Shimizu - Mochi, Tana, Chuo ward, Sagamihara city, Kanagawa pref.; Koshimizu, Oshima, Midori ward, Sagamihara city, Kanagawa pref.; Kosawa, Sumida, Aikawa city, Aiko county, Kanagawa pref.; Otsuka - Kamikumasaka - Kumasaka, Nakatsu, Aikawa city, Aiko county, Kanagaw pref.; Oginogawa river, Shimoogino, Atsugi city, Kanagawa pref.
Fossils: Shellfishes (Shallow and bathyal marine)
Tephra: Shimizu

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.)