Shibaishi Volcanics

[ Top ] [ Japanese ]

Shibaishi Volcanics Iijima and Saito, 1968

Type locality: Mount Kanai, Matsushiro town, Nagano city, Nagano prefecture
Volcanic rocks
Pliocene

Lithofacies: Quartz-bearing augite hypersthene andesite
Lithofacies: Tuff breccia, Pyroclastic flow deposit

Thickness: 100 m or thicker
Source: Mount Kimyosan

Kimyosan Volcanics
[ Upper ]
~~~~~~~~~~~~~~
Kimyo Volcanics
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Amakazariyama Volcanics
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Higashijo Volcanics
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Kiyotaki Volcanics
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[ Lower ]

Kimyosan Volcanics
[ Upper ]
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Shibaishi Volcanics
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[ Lower ]

Nagano, Nagano pref.
[ Upper ]
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Kimyosan Volcanics
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Hokiyadake Volcanics
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Makiuchi Andesite
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[ Lower ]

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

Distribution: Mount Kanai - Shiba - Omuro, Matsushiro town, Nagano city, Nagano pref.

Kato and Akahane (1986) Geology of the Nagano District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 120p. (in Japanese with English abstract 5p.)