Hosuikyo Tuff Breccia Member

[ Top ] [ Japanese ]

Hosuikyo Tuff Breccia Member

Type locality: Hosuikyo bridge, Oyama, Toyama city, Toyama prefecture
Coherent formation
early - late Miocene

Sedimentary facies: Marine
Lithofacies: Andesite tuff breccia

Thickness: ca. 50 m

Yatsuo Group (Tateyama, Toyama pref.)
[ Upper ]
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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
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[ Lower ]

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

Distribution: Hosuikyo bridge, Oyama, Toyama city, Toyama pref.

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.)