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CGS 4 Tephra

Abbr.: CGS 4

• Tephra
• Pliocene

• Lithofacies: Vitreous tephra

• Host: Tomoda Formation

• Distribution: Chigase town - Kabe town, Ome city, Tokyo

• Ueki and Sakai (2007) Geology of the Ome District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 189p. (in Japanese with English abstract 5p.)