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Tamaze Formation (Yoshida, 1975) Matsuura et al., 1995
Invalid synonym: Tamaze Welded Tuff, Gennoike Clastic Rocks, Gennoike Formation, Nagaoyama Lava, Tsukunami Lava
- Type locality (Welded tuff): Takedaotsuji, Tamase, Takarazuka city, Hyogo prefecture
- Type locality (Others): Ginzan - Manzen, Inagawa city, Kawabe county, Hyogo prefecture
- Volcanic rocks
- Late Cretaceous (72.1, 70.7 Ma, K-Ar)
- Correlation: Rurikei Formation, Kamogawa Formation, Tsukuhara Formation
- Intruded by: Kawashimogawa Quartz Diorite, Mikusayama Granitic Complex, Rhyolite dikes
- Lithofacies: Biotite rhyolitic welded tuff
- Lithofacies (Minor): Tuffaceous sandstone, Conglomerate, Tuff, Rhyolite lava, Mudstone
- Sedimentary structures: Eutaxitic structure
- Tamaze Formation
- [ Upper ]
- ~~~~~~~~~~~~~~
- Upper member
- ::::::::::::::
- Lower member
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Tamase - Takedao - Mukogawa river - Toriwaki - Nakayama - Kawashimogawa river, Takarazuka city, Hyogo pref.; Hirata, Dojo town, Kobe city, Hyogo pref.; Lake Gennoike, Ginzan, Kawanishi city, Hyogo pref.; Henmyoin temple - Toishigawa river, Sanda city, Hyogo pref.; Najio - Horaikyo valley, Nishinomiya city, Hyogo pref.; Najio - Horaikyo valley, Nishinomiya city, Hyogo pref.; Ginzan - Manzen - Ninbe - Byobuiwa - Mount Ipponmatsuyama, Inagawa city, Kawabe county, Hyogo pref.; Dojo - Funasakagawa river - Arima hot spring - Mount Taishakusan, Kobe city, Hyogo pref.
- Matsuura et al. (1995) Geology of the Hirone District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 110p. (in Japanese with English abstract 6p.)
- Kurimoto et al. (1993) Geology of the Sasayama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 5p.)
- Ozaki and Matsuura (1988) Geology of the Sanda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 5p.)