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Uchiura Andesites

Invalid synonym: Uchiura Volcanic Breccia

• Volcanic rocks
• Pliocene
• Intruded by: Andesite dykes, Dacite stocks

• Lithofacies (Dacite): Hypersthene series
• Lithofacies (Upper): Andesite
• Lithofacies (Middle): Volcanic breccia
• Lithofacies (Lower): Pumice tuff

• Lower limit: Unconformity (Yugashima Group)

• Distribution: Uchiura, Numazu city, Shizuoka pref.; Yamada, Izu city, Shizuoka pref.

• Sawamura (1955) Shuzenji, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 47p. (in Japanese with English abstract 4p.)