Torigakubi Conglomerate Member

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Torigakubi Conglomerate Member Fujimoto et al., 1951

Type locality: Nadachi-kuzure cliff, Nadachiomachi, Joetsu city, Niigata prefecture
Volcanic rocks
late Pliocene
Contemporaneous heterotopic facies: Eboshiyama Volcanic Rocks

Lithofacies: Andesite volcanic conglomerate
Lithofacies (Minor): Tuffaceous mudstone, Volcanic sands, Lapilli
Sedimentary structures: Imbrication
Paleocurrent: South southwest to North northeast

Thickness: 20 m
Upper limit: Conformity (Chayagahara Mudstone Member)
Lower limit: Unconformity (Arimagawa Mudstone Member)

Torigakubi Formation
[ Upper ]
~~~~~~~~~~~~~~
Chayagahara Mudstone Member
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Torigakubi Conglomerate Member / Eboshiyama Volcanic Rocks
~~~~~~~~~~~~~~
[ Lower ]

Joetsu Group
[ Upper ]
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Torigakubi Formation
~~~~~~~~~~~~~~
Tanihama Formation
~~~~~~~~~~~~~~
Nadachi Formation
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[ Lower ]

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

Distribution: Nadachiomachi - Cape Torigakubi - Iwayado, Joetsu city, Niigata pref.

Akahane and Kato (1989) Geology of the Takada-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 89p. (in Japanese with English abstract 3p.)