[ Top ] [ Japanese ]
Kurakawa Formation Suzuki, 1964
- Type locality: Kurakawa river, Aizuwakamatsu city, Fukushima prefecture
- Volcanic rocks
- early Miocene
- Intruded by: Rhyolite dikes
- Sedimentary facies: Terrestrial
- Lithofacies: Clinopyroxene andesite, Orthopyroxene clinopyroxene andesite
- Lithofacies: Lava, Volcanic conglomerate, Volcanic sandstone, Tuff breccia
- Lithofacies (Minor): Rhyolite lapilli tuff, Conglomerate, Sandstone
- Sedimentary structures (Andesite): Parallel stratification
- Sedimentary structures (Sandstone): Parallel stratification, Trough cross-stratification
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Kurakawa river - Ashinomaki hot spring - Okawa dam, Aizuwakamatsu city, Fukushima pref.; Ouchi dam - Mount Ono, Shimogo city, Minamiaizu county, Fukushima pref.
- Furukawa et al. (2018) Geology of the Azuma Yama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 74p. (in Japanese with English abstract 3p.)
- Yamamoto and Komazawa (2004) Geology of the Miyashita District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 71p. (in Japanese with English abstract 5p.)
- Yamamoto (1999) Geology of the Tajima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 8p.)
- Yamamoto and Yoshioka (1992) Geology of the Wakamatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 5p.)