[ Top ] [ Japanese ]

Shimekake Tuff

• Tephra
• Pliocene (2.9 Ma, K-Ar)

• Lithofacies: Dacite tuff

• Host: Oanayama Member

• Distribution: Shibuta - Yashiro pass, Ikeda city, Kitaazumi county, Nagano pref.

• Kato and Sato (1983) Geology of the Shinano-Ikeda District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 7p.)