Juniko Tuff Member

[ Top ] [ Japanese ]

Juniko Tuff Member Saito et al., 1954

Type locality: Lake Juni, Fukaura city, Nishitsugaru county, Aomori prefecture
Volcanic rocks
Miocene

Lithofacies: Rhyolitic pumice tuff, Tuff breccia
Lithofacies (Minor): Biotite rhyolite lava

Thickness: 300 m
Upper limit: Conformity (Akaishi Formation)
Lower limit: Conformity (Kurosaki Formation)

Odoji Formation
[ Upper ]
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Juniko Tuff Member
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Lower member
-------~~~~~~~
[ Lower ]

Fukaura, Aomori pref.
[ Upper ]
~~~~~~~~~~~~~~
Narusawa Formation
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Maito Formation
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Akaishi Formation
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Odoji Formation
-------~~~~~~~
Tanosawa Formation
~~~~~~~~~~~~~~
Otose Formation
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Fujikuragawa Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Lake Juni - Hiroto, Fukaura city, Nishitsugaru county, Aomori pref.

Moritani (1968) Geology of the Fukaura District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 57p. (in Japanese with English abstract 5p.)