[ Top ] [ Japanese ]

Cr Tephra

Abbr.: Cr

• Tephra
• Pleistocene

• Sedimentary facies: Marine
• Lithofacies: Scoriaceous tuff

• Thickness: 10 m
• Host: Byobugaura Formation

• Distribution: Totsuka town - Kamikurata town, Totsuka ward, Yokohama city, Kanagawa pref.; Noba town - Kamioka, Konan ward, Yokohama city, Kanagawa pref.; Byobugaura, Isogo ward, Yokohama city, Kanagawa pref.; Bessho town, Minami ward, Yokohama city, Kanagawa pref.
• Fossils: Bivalves

• Mitsunashi and Kikuchi (1982) Geology of the Yokohama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 105p. (in Japanese with English abstract 4p.)