A II

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A II

Volcano
Volcanic rocks
Miocene

Lithofacies: Basaltic andesite
Lithofacies (Upper): Lava, Tuff breccia, Lapilli tuff
Lithofacies (Lower): Lava

Thickness: 200 - 250 m
Upper limit: Conformity (A III)
Lower limit: Conformity (A I)

Tappi Volcanic Rocks
[ Upper ]
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A IV
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A III
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A II
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A I
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[ Lower ]

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

Distribution: Horonai creek, Horonai, Kodomari, Nakadomari city, Kitatsugaru county, Aomori pref.

Ota et al. (1957) Mimmaya, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 30p. (in Japanese with English abstract 5p.)