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AG Tephra

Abbr.: AG

• Tephra
• Pleistocene (ca. 14 - 13 ka)
• Correlation: Miyatsukayama Tephra (Niijima island)

• Lithofacies: Pumice

• Host: Tachikawa Loam

• Distribution: Yoshifu, Isumi city, Chiba pref.; Morimiya, Otaki city, Isumi county, Chiba pref.; Niijuku, Onjuku city, Isumi county, Chiba pref.; Takiguchi, Shirahama town, Minamiboso city, Chiba pref.

• Utsunomiya and Ooi (2019) Geology of the Kazusa-Ohara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 127p. (in Japanese with English abstract 4p.)
• Nanayama et al. (2016) Geology of the Mobara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 101p. (in Japanese with English abstract 4p.)
• Kawakami and Shishikura (2006) Geology of the Tateyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 82p. (in Japanese with English abstract 5p.)