Animatsukurasawa Lavas

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Animatsukurasawa Lavas

Type locality: Animatsukura creek, Mount Moriyoshi, Kitaakita city, Akita prefecture
Volcanic rocks
Eruptive products in pre-caldera and caldera-forming stages
Pleistocene (1 Ma)

Lithofacies: Clinopyroxene orthopyroxene andesite lava, Block-and-ash flow deposit

Thickness (A unit): 3, 10 m
Upper limit: Unconformity (Ichinomatakawa Lavas)

E-2 stage
[ Upper ]
~~~~~~~~~~~~~~
Ichinomatakawa Lavas
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Ichinokoshi Lavas
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Todorinaisawa Lava
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Animatsukurasawa Lavas
~~~~~~~~~~~~~~
Tokidozawa Lava
~~~~~~~~~~~~~~
[ Lower ]

Earlier stage
[ Upper ]
~~~~~~~~~~~~~~
E-3 stage
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E-2 stage
~~~~~~~~~~~~~~
E-1 stage
~~~~~~~~~~~~~~
[ Lower ]

Moriyoshi volcano
[ Upper ]
+__+__+__+__+_
Later stage
~~~~~~~~~~~~~~
Earlier stage
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Animatsukura creek, Mount Moriyoshi, Kitaakita city, 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.)