Zasunbo Conglomerate, Sandstone and Mudstone Member

[ Top ] [ Japanese ]

Zasunbo Alternation of Conglomerate, Sandstone and Mudstone Member

Coherent formation
early - late Miocene
Intruded in: Fudokabe Andesite

Lithofacies (Upper): Conglomerate, Interbedded sandstone and mudstone
Lithofacies (Lower): Interbedded sandstone and mudstone
Lithofacies (Minor): Lignite, Pumice tuff

Thickness: 0 - ca. 400 m
Upper limit: Conformity (Mekka Pumiceous Tuff Member, Tochizu Alternation of Sandstone and Mudstone Member), Unconformity (Takamineyama volcano)
Lower limit: Transitional (Kashinoki Conglomerate Member), Conformity (Iwaine Formation)

Yatsuo Group (Tateyama, Toyama pref.)
[ Upper ]
~~~~~~~~~~~~~~
Shakusenji Formation
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Hosuikyo Tuff Breccia Member
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Oiwa Tuff Member
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Mekka Pumiceous Tuff Member
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Zasunbo Alternation of Conglomerate, Sandstone and Mudstone Member
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Iwaine Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Shiraiwagawa river, Tateyama city, Nakaniikawa county, Toyama pref.
Fossils: Wood fragments, Silicified woods

Nozawa and Sakamoto (1960) Gohyakkoku, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 68p. (in Japanese with English abstract 10p.)