Anamizuzawa Basalt Member

Anamizuzawa Basalt Member (Muraoka and Hase, 1990) Takarada and Muraoka, 2004

Invalid synonym: Aoni Basalt Member

Type locality: Aomori prefecture
Volcanic rocks
Pleistocene

Sedimentary facies: Lacustrine
Lithofacies: Basalt lava (4 flow units)

Source: Center dome of Okiura caldera
Thickness (A unit): 11 - 25 m

Aoni Tuff
[ Upper ]
~~~~~~~~~~~~~~
Nurukawa Debris Flow Deposit Member
~~~~~~~~~~~~~~
Anamizuzawa Basalt Member / Anamizuzawa Lithic Tuff member
~~~~~~~~~~~~~~
[ Lower ]

Okiura caldera
[ Upper ]
~~~~~~~~~~~~~~
Oguni Lacustrine Formation
~~~~~~~~~~~~~~
Okiura Dacite
'''''''/,,,,,,
Aoni Tuff
--------------
[ Lower ]

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

Distribution: Nishonai dam, Aoni river, Kuroishi city, Aomori pref.

Takarada and Muraoka (2004) Geology of the Hakkoda San District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 86p. (in Japanese with English abstract 4p.)