Shinoisan Member

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Shinoisan Member Matsuda, 1961

Type locality: Kamitokuma, Nanbu city, Minamikoma county, Yamanashi prefecture
Volcanic rocks
late Miocene
Correlation: Kuzusawa Member, Tsukiyo Member, Yorihata Member, Seigo Volcaniclastic Member, Karasumoriyama Volcaniclastic Member

Sedimentary facies: Marine
Lithofacies: Andesite volcanic breccia, Tuff breccia, Lapilli tuff, Tuff
Lithofacies (Minor): Agglomerate, Lava, Scoria tuff

Thickness: ca. 0 - 1,800 m
Upper limit: Conformity (Kawaino Member, Okuyama Member)
Lower limit: Transitional (Tokuma Member)

Aimata Formation (North)
[ Upper ]
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Karasumoriyama Volcaniclastic Rocks Member
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Takatori Volcaniclastic Rocks, Sandstone and Mudstone Member
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[ Lower ]

Aimata Formation (South)
[ Upper ]
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Shinoisan Member
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Tokuma Member
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[ Lower ]

Fujikawa Group (Central zone)
[ Upper ]
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Hamaishidake Formation / Akebono Formation
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Aimata Formation
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Kuonji Formation
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Hara Formation
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[ Lower ]

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

Distribution: Kamitokuma - Mount Shinoisan, Nanbu city, Minamikoma county, Yamanashi pref.

Sugiyama and Matsuda (2014) Geology of the Nanbu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 134p. (in Japanese with English abstract 5p.)