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Yakumo Volcanic Rocks Kano et al., 1994

• Type locality: Yatanigawa, Kumano, Yakumo, Matsue city, Shimane prefecture
• Volcanic rocks
• Late Cretaceous (85.5, Rb-Sr)
• Intruded by: Fube Granite, Hiyodori Granite, Shimokuno Granite, Quartz diorite
• Correlation: Kamishima Volcanic Rocks?

• Lithofacies: Rhyolite pumiceous lapilli tuff, Tuff, Lava, Dacite tuff
• Sedimentary structures: Eutaxitic structures

• Thickness: 800 m
• Lower limit: Unconformity (Kamiito Metamorphic Rocks)

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

• Distribution: Izumo city, Shimane pref.; Kamiito - Kumano - Kuwanami - Bessho, Matsue city, Shimane pref.; Ojidani - Toda, Yasugi city, Shimane pref.

• Kano (2018) Jour. Geol. Soc. Japan, vol.124, no.10, pp.781-803 DOI
• Nishida (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.229-248 DOI
• Kano et al. (1994) Geology of the Matsue District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 126p. (in Japanese with English abstract 5p.)