Shimokomata Andesitic Tuff Breccia Member

[ Top ] [ Japanese ]

Shimokomata Andesitic Tuff Breccia Member Taguchi, 1967

Coherent formation
Miocene

Lithofacies: Andesite - basalt volcaniclastic rocks
Lithofacies (Minor): Basalt lava, Tuff breccia

Furukuchi Formation
[ Upper ]
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Main part
'''''''/,,,,,,
Shimokomata Andesitic Tuff Breccia Member / Ogawauchi Tuffaceous Sandstone Member
'''''''/,,,,,,
Main part
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[ Lower ]

Shinjo basin, Yamagata pref.
[ Upper ]
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Furukuchi Formation
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Kusanagi Formation
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Aosawa Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Shinjo basin, Yamagata pref.

Tsuchiya (1989) Geology of the Osawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 6p.)