Sarugedake Volcanic Rock Member

Sarugedake Volcanic Rock member Kudo et al., 2011

Invalid synonym: Sarugedake Formation, Tsuchikura Lapilli Tuff

Volcanic rocks
Submarine volcanic edifice
Miocene (11.4 - 8 Ma)

Sedimentary facies: Submarine volcanic products
Lithofacies: Basaltic andesite - dacite hyaloclastite lava, Tuff, Lapilli tuff, Tuff breccia, Volcanic breccia, Intrusive rocks

Thickness: ca. 750 m

Minamiimogawa Formation
[ Upper ]
~~~~~~~~~~~~~~
Shigekurayama Volcanic Rock Member
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Sarugedake Volcanic Rock Member
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[ Lower ]

Kamo, Niigata pref.
[ Upper ]
~~~~~~~~~~~~~~
Minamiimogawa Formation
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Nanatani Formation
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Otani Formation
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Tonoiri Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Araya, Gosen city, Niigata pref.; Deto, Kamo city, Niigata pref.; Nagano, Sanjo city, Niigata pref.; Futsuka town, Nagaoka city, Niigata pref.
Distribution (Intrusive rocks): Kamitokura, Gosen city, Niigata pref.; Mount Ishitakajo - Mount Taikohara - Miyayorikami, Kamo city, Niigata pref.

Kudo et al. (2011) Geology of the Kamo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 162p. (in Japanese with English abstract 4p.)