Takatsu Formation

Takatsu Formation (Otsuka, 1932) Oka et al., 1984

Type locality: Hisamoto, Kawasaki city, Kanagawa pref.
Coherent formation
Fore-arc basin sediments (Kazusa trough)

Lithofacies: Mudstone-dominant interbedded sandstone and mudstone
Lithofacies (Minor): Sandstone

Thickness: 45 - 50 m
Upper limit: Unconformity (Shimosueyoshi Formation)
Lower limit: Conformity (Iimuro Formation)

Kazusa Group (central Tama hills)
[ Upper ]
~~~~~~~~~~~~~~
Takatsu Formation
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Iimuro Formation
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Ikuta Formation
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Ozenji Formation
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Kakio Formation
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Tsurukawa Formation
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Kamihoshikawa Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Hisamoto, Kawasaki city, Kanagawa pref.; Nagao, Tama ward, kawasaki city, Kanagawa pref.; Mizonokuchi - Kuji - Hisasue - Chitose, Takatsu ward, Kawasaki city, Kanagawa pref.; Saginuma - Tsuchihashi - Kunokawa, Miyamae ward, Kawasaki city, Kanagawa pref.; Hiyoshi, Yokohama city, Kanagawa pref.
Fossils: Stegodon aurorae, Foraminifera
Fossils (Shellfishes): Macoma calcarea, Panopea japonica (<= Panope genelosa), Solamen diaphana, Yoldia cf. lischkei
Tephra: Hm

Suzuki et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.7, pp.343-356, DOI
Suzuki and Murata (2011) Jour. Geol. Soc. Japan, vol.117, no.7, pp.379-397 DOI
Oka et al. (1984) Geology of the Tokyo-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)