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Komazuki Tephra Ishida and Yokoyama, 1969

• Type locality: Kamikomazuki, Hino city, Gamo county, Shiga prefecture
• Tephra
• Pliocene - Pleistocene

• Lithofacies: Vitreous volcanic ash

• Thickness: ca. 20 - 50 cm
• Host: Nunobikiyama Alternation Member, Hazama Clays Member

• Distribution: Mushono - Kojogaoka, Minakuchi town, Koka city, Shiga pref.; Hazama - Kamikomazuki, Hino city, Gamo county, Shiga pref.

• Nakano et al. (2003) Geology of the Minakuchi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 83p. (in Japanese with English abstract 3p.)
• Miyamura et al. (1981) Geology of the Kameyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 128p. (in Japanese with English abstract 9p.)