[ Top ] [ Japanese ]

At-4 Tephra

Abbr.: At-4

• Tephra
• middle Pleistocene

• Host: Toshima Sand and Gravel Member

• Distribution: Terasawa town, Toyohashi city, Aichi pref.

• Nakashima et al. (2008) Geology of the Toyohashi and Tahara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 113p. (in Japanese with English abstract 3p.)
• Nakashima et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.2, pp.70-79 DOI