[ Top ] [ Japanese ]

Tsubetaike Welded Tuff

• Volcanic rocks
• Paleogene

• Lithofacies: Rhyolite welded tuff

• Upper limit: Unconformity (Shirasawanokoru Clastic Bed)
• Lower limit: Unconformity (Ariake Granite)

• Distribution: Tsubetanokkoshi - Tsubetaike mountain villa, Omachi city, Nagano pref.

• Kato et al. (1989) Geology of the Omachi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 111p. (in Japanese with English abstract 7p.)