Wabuchi Conglomerate Member

[ Top ] [ Japanese ]

Wabuchi Conglomerate Member

Coherent formation
Basal conglomerate
early Miocene
Contemporaneous heterotopic facies: Nonodake Pyroclastic Member, Oido Sandstone Member
Correlation: Kakeyama Conglomerate Member

Sedimentary facies: Marine
Lithofacies: Conglomerate
Lithofacies (Minor): Sandstone, Tuffaceous sandstone

Thickness: 100 m
Upper limit: Partly interfingered (Nonodake Pyroclastic Member)

Oido Formation (Wakuya)
[ Upper ]
--------------
Oido Sandstone Member
-------''''/,,,
Nonodake Pyroclastic Member
-------''''/,,,
Wabuchi Conglomerate Member
~~~~~~~~~~~~~~~~
[ Lower ]

Oido Formation (Matsushima)
[ Upper ]
--------------
Oido Tuffaceous Sandstone Member
--------------
Asahiyama Andesite Member
--------------
Kakeyama Conglomerate Member
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Confluence of th Kiatakami and Eai rivers, Ishinomaki city, Miyagi pref.

Takahashi and Matsuno (1969) Geology of the Wakuya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 26p. (in Japanese with English abstract 6p.)