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Takada Rhyolites

The name was defined as Takada although the locality name is Takata.

• Type locality: Takata county, Hiroshima prefecture
• Volcanic rocks
• Late Cretaceous
• Correlation: Ochi Group
• Intruded by: Shikijiki Granite, Mitsumori Granite, Asuna Granite

• Lithofacies: Biotite rhyolite welded tuff, Hornblende biotite dacite - Rhyolite welded tuff
• Lithofacies (Minor): Tuffaceous conglomerate, Sandstone, Mudstone, Lapilli tuff

• Thickness: 1,400 - 2,000 m or thicker
• Lower limit: Unconformity (Hasumi Formation)

• Distribution: Takata county, Hiroshima pref.; Yamane - Midori - Takamiya, Akitakata city, Hiroshima pref.; Kumami - Funo - Sakugi, Miyoshi city, Hiroshima pref.; Togochi - Uegahata, Onan city, Och county, Shimane pref.

• Matsuura (1990) Geology of the Akana District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 73p. (in Japanese with English abstract 5p.)