[ Top ] [ Japanese ]

Ch3 Tephra

Abbr.: Ch3

• Tephra
• Pleistocene (0.63? Ma, FT)

• Lithofacies: Vitreous volcanic ash

• Host: Chonan Formation
• Thickness:

• Distribution: Toneri, Chonana city, Chosei county, Chiba pref.

• Nanayama et al. (2016) Geology of the Mobara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)