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Gos Tephra Ikebe, 1941

Abbr.: Gos

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

• Lithofacies: Pumice, Andesitic breccia, Volcanic sands

• Host: Nishiyama Formation, Hachikokusan Formation
• Thickness: 13 - 15 cm

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

• Distribution: Goken hot spring, Miyamoto town, Nagaoka city, Niigata pref.; Jorakuji - Kamijo - Ogamaya - Katsurazawa - Tanaka - Notsubo, Izumozaki city, Santo county, Niigata pref.; Fujikake - Otsubo - Yakushi pass - Futada castle - Monomiyama, Nishiyama town, Kashiwazaki city, Niigata pref.; Iidera, Kashiwazaki city, Niigata pref.

• Kobayashi et al. (2002) Geology of the Sanjo District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 98p. (in Japanese with English abstract 4p.)
• Kobayashi et al. (1995) Geology of the Kashiwazaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 102p. (in Japanese with English abstract 4p.)
• 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.)