[ Top ] [ Japanese ]

Drg Tephra

Abbr.: Drg

• Tephra
• Pliocene - Pleistocene

• Lithofacies: Volcanic ash

• Host: Ogawa Formation

• Distribution: Niigata pref.

• Yanagisawa et al. (2000) Geology of the Iiyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 144p. (in Japanese with English abstract 6p.)