Gosj-1 Tephra

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Gosj-1 Tephra

Abbr.: Gosj-1

Type locality: Goken hot spring, Miyamoto town, Nagaoka city, Niigata prefecture
Tephra
Pliocene - Pleistocene

Lithofacies: Pumice, Andesitic breccia, Volcanic sands

Thickness: 13 cm
Host: Nishiyama Formation

Gos Tephra
[ Upper ]
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Gosj-t
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Gosj-3
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Gosj-2
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Gosj-1
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[ Lower ]

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

Distribution: Goken hot spring, Miyamoto town, Nagaoka city, Niigata pref.; Jorakuji - Kamijo - Ogamaya - Katsurazawa, Izumozaki city, Santo county, Niigata pref.

Kobayashi et al. (1993) Geology of the Izumozaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 91p. (in Japanese with English abstract 4p.)