Daishojinokashira Basalt Formation

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Daishojinokashira Basalt Formation

Type locality: Oshojinokashira, Yuzawa city, Minamiuonuma county, Niigata prefecture - Minakami city, Tone county, Gunma prefecture
Volcanic rocks
Roof pendant
Miocene
Correlation: Matsukawa Formation

Lithofacies: Basalt lava (Pillow lava)
Lithofacies (Minor): Shale

Thickness: 100 m or thicker
Lower limit: Conformity (Shigekuradake Conglomerate Formation)

Tanigawa mountains, Niigata pref.
[ Upper ]
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Akaya Shale Formation
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Sennokura Pyroclastic Rock Formation
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Mantaroyama Shale Formation
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Daishojinokashira Basalt Formation
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Shigekuradake Conglomerate Formation
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[ Lower ]

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

Distribution: Oshojinokashira - Gosaku trail, Yuzawa city, Minamiuonuma county, Niigata prefecture - Minakami city, Tone county, Gunma pref.

Chihara et al. (1981) Geology of the Echigo-Yuzawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 108p. (in Japanese with English abstract 8p.)