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Chokuro Andesites

• Volcanic rocks
• Terrestrial volcano
• late Pliocene

• Lithofacies: Quartz-bearing augite andesite lava (A few flow units)

• Thickness: ca. 160 m
• Lower limit: Unconformity (Yugashima Group, Shirahama Group)

• Distribution: Mount Chokuroyama, Matsuzaki 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.)