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Shirakawa Basalts

Invalid synonym: Shirakawa Formation

• Volcanic rocks
• Miocene

• Lithofacies: Basalt lava
• Lithofacies (Minor): Basalt volcanic breccia, Tuffaceous sandstone, Siltstone

• Thickness: 700 m
• Upper limit: Unconformity (Shirahama Group)
• Lower limit: Unconformity (Yugashima Group)

• Distribution: Shirakawa - Neginohata, Nishiizu city, Kamo county, Shizuoka pref.; Mount Misujiyama, Higashiizu city, Kamo county, Shizuoka pref.

• Sawamura et al. (1970) Geology of the Shimoda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 41p. (in Japanese with English abstract 4p.)