Anigawa Formation

Anigawa Formation Metal Mining Agency of Japan, 1977

Divided to Torisakagawa Formation, Utto Formation, and Kitanomatasawa Formation.

Coherent formation
Miocene

Anigawa Formation
[ Upper ]
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Kitanomata Dacite Member = Kitanomatasawa Formation
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Koya Mudstone and Sandstone Member = Utto Formation
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Aniai Coal-bearing Member = Torisakagawa Formation
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Hitachinai Basalt Member = Torisakagawa Formation
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[ Lower ]

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

Distribution: Akita pref.

Kano et al. (2012) Geology of the Aniai District, 2nd Edition, 1:50,000 Quadrangle Series, Geological Survey of Japan, AIST, 59p. (in Japanese with English abstract 4p.)