Ozasu Tuff Member

Ozasu Tuff Member Chichibu Basin Collaborative Research Group, 2004

Type locality: Ozasu, Chichibu city, Saitama prefecture
Tephra
middle Miocene

Lithofacies: Tuff

Oganomachi Formation
[ Upper ]
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Ozasu Tuff Member
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[ Lower ]

Akahira Group
[ Upper ]
?--?--?--?--?-
Chichibumachi Formation
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Oganomachi Formation
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Nenokami Formation
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Tomita Formation
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Shirasu Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Ozasu Chichibu city, Saitama pref.

Hara et al. (2010) Geology of the Mitsumine District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 110p. (in Japanese with English abstract 4p.)