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Shinzojiyama Rhyolites Yoshida, 1961

• Type locality: Mount Shinzojiyama, Misato city, Ochi county, Shimane prefecture
• Volcanic rocks
• Late Cretaceous
• Intruded by: Akana Granodiorite, Maki Body, Onbara Granite, Mitsumori Granite, Asuna Granite, Ijimi Granite

• Lithofacies: Andalusite hornfels
• Lithofacies (Protolith): Biotite rhyolite welded tuff
• Lithofacies (Protolith, Minor): Andesite lava, Hornblende biotite dacite - Rhyolite welded tuff

• Upper limit: Unconformity (Sakugi Volcanic Rocks)
• Lower limit: Unconformity (Tsunotani Formation)

• Distribution: Mount Shinzojiyama - Kamino - Tanohara - Bojitoge pass, Misato city, Ochi county, Shimane pref.; Makigawa river - Akana - Idotani, Iinan city, Iishi county, Shimane pref.; Utsui, Onan city, Ochi county, Shimane pref.; Miyoshi city, Hiroshima 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.)
• Hattori et al. (1983) Geology of the Sambesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 168p. (in Japanese with English abstract 7p.)