Shibire Tuff Breccia Member

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Shibire Tuff Breccia Member

Type locality: Yamanashi prefecture
Volcanic rocks
Miocene

Lithofacies: Two-pyroxene basalt, Two-pyroxene andesite Volcanic breccia
Lithofacies (Minor): Dacitic volcaniclastic rocks, Mudstone

Upper limit: Conformity (Sakuratoge Pyroclastics Member)

Ichikawadaimon Formation
[ Upper ]
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Ubaguchi Dacite Member
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Sakuratoge Pyroclastics Member
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Shibire Tuff Breccia Member
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[ Lower ]

Nishiyatsushiro Group (eastern Kofu, Yamanashi pref.)
[ Upper ]
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Ichikawadaimon Formation
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Ashigawa Formation
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[ Lower ]

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

Distribution: Lake Shibire, Ichikawamisato city, Nishiyatsushiro county, Yamanashi pref.

Katada (1956) Kofu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 27p. (in Japanese with English abstract 4p.)