Akazawa Lava

[ Top ] [ Japanese ]

Akazawa Lava Kobari, 1974

Type locality: Iwate prefecture
Volcanic rocks
Stratovolcano
Pleistocene

Lithofacies: Quartz-bearing clinopyroxene orthopyroxene andesite, Hornblende-bearing olivine clinopyroxene orthopyroxene andesite, Orthopyroxene clinopyroxene andesite, Olivine basalt

Pre-caldera stratovolcano
[ Upper ]
~~~~~~~~~~~~~~
Maego Lava
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Okuro Lava
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Kowase Altered Andesite
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[ Lower ]

Pre-caldera stratovolcano
[ Upper ]
~~~~~~~~~~~~~~
Akazawa Lava
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[ Lower ]

Kayodake volcano
[ Upper ]
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Post-caldera lava
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Parasitic cone
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Pre-caldera stratovolcano
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[ Lower ]

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

Distribution: Mount Ishiguro - Mount Kojiromori, Tazawako, Senboku city, Akita pref.

Suto and Ishii (1987) Geology of the Shizukuishi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 142p. (in Japanese with English abstract 5p.)