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YM Tephra

Abbr.: YM

Invalid synonym: Nekata Tuff

• Tephra
• Pleistocene (1.1 Ma, FT)

• Lithofacies: Vitreous tephra

• Source: Chubusangaku area
• Host: Inagi Formation, Kakio Formation

• Distribution: Kanagawa pref.

• Ueki et al. (2013) Geology of the Hachioji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 137p. (in Japanese with English abstract 6p.)