Hachioji Formation

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Hachioji Formation Yoshida, 1984

Type locality: Hachioji town, Yokkaichi city, Mie prefecture
Coherent formation
Pleistocene
Correlation: upper Kameyama Formation

Lithofacies: Clay-dominant interbedded sands and clay
Lithofacies (Minor): Gravels, Gravel-bearing sands

Distribution (East - West): ca. 60 m
Distribution (South - North): ca. 75 m
Upper limit: Transitional (Uchiyama Member, Tomari Formation)

Tokai Group (Yokkaichi, Mie pref.)
[ Upper ]
?--?--?--?--?-
Sakuramura Formation / Tomari Formation
--------------
Hachioji Formation
?--?--?--?--?-
[ Lower ]

Second Setouchi Supergroup (Mie pref. - Aichi pref.)
~~~~~~~~~~~~~~
Tokai Group
~~~~~~~~~~~~~~

[ Upper ]
~~~~~~~~~~~~~~
Second Setouchi Supergroup
?--?--?--?--?-
First Setouchi Supergroup
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Hachioji town - Aoba town - Hagi town - Uchiyama town - Yamada town - Kitakomatsu town - Kaizuka town - Soi town - Mie-danchi, Yokkaichi city, Mie pref.
Tephra: Hazama, Kabakegawa, Kawashima I, Kawashima II
Fossils (Plants): Acer sp., Hamamelis parrotoidea, Picea koribai, Quercus variabilis, Sarex sp., Styrax japonica

Yoshida et al. (1991) Geology of the Kuwana District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 154p. (in Japanese with English abstract 5p.)
Yoshida (1984) Geology of the Yokkaichi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 81p. (in Japanese with English abstract 5p.)