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Koshimoda Andesites

• Volcanic rocks
• Pliocene

• Lithofacies: Pigeonite series
• Lithofacies: Andesite volcanic breccia
• Lithofacies (Minor): Andesite lava, Volcanic conglomerate, Agglutinates, Sandstone

• Upper limit: Unconformity (Tanaba volcano)
• Lower limit: Unconformity (Yugashima Propylites, Omi White Tuffs)

• Distribution: Saizu - Toi - Koshimoda - Yagisawa, 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.)