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Muroyama Basalt Matsuura et al., 2005

• Type locality: Mount Muroyama, Kisuki town, Unnan city, Shimane prefecture
• Volcanic rocks
• Miocene (9.1 Ma, K-Ar)

• Lithofacies: Basalt lava

• Thickness: ca. 20 - 30 m
• Distribution (East - West): ca. 300 m
• Distribution (South - North): ca. 150 m
• Lower limit: Unconformity (Daito Granodiorite)

• Distribution: summit of Mount Muroyama, Kisuki town, Unnan city, Shimane pref.

• Matsuura et al. (2005) Geology of the Kisuki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 72p. (in Japanese with English abstract 5p.)