Jizotoge Volcanic Rocks

Jizotoge Volcanic Rocks (Samejima, 1958) Kisodani Quaternary Research Group, 1967

Invalid synonym: Jizotoge Andesite

Volcanic rocks
Pliocene (3.4 - 1.6 Ma, K-Ar)

Lithofacies: Andesite pyroclastic rocks, Lava

Distribution (East - West): 20 km
Distribution (South - North): 30 km
Upper limit: Unconformity (Kamiogawa Body)
Lower limit: Conformity (Jizomine Gravel Bed)

Jizotoge Volcanic Rocks
[ North ]
~~~~~~~~~~~~~~
Nomugitoge Volcanic Rocks
~~~~~~~~~~~~~~
Nishino Body
~~~~~~~~~~~~~~
Okumine Body
~~~~~~~~~~~~~~
Jizotoge Body
~~~~~~~~~~~~~~
Saichigo Body
~~~~~~~~~~~~~~
[ South ]

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

Distribution: Iida city - Oshika city, Shimoina county, Nagano pref.; Sekiyatoge pass - Nishinotoge pass - Shiroyama - Mount Tatsugamne - Kamiogawa - Nagaino, Kiso city, Kiso county, Nagano pref.; Mount Ozassayama, Kiso city, Kiso county, Nagano pref.

Takeuchi et al. (1998) Geology of the Kiso-Fukushima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 94p. (in Japanese with English abstract 4p.)
Nakano et al. (1995) Geology of the Norikuradake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 139p. (in Japanese with English abstract 4p.)