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TT-1 Tephra Moriya et al., 2008

Abbr.: TT-1

• Type locality: Shinjo basin, Yamagata prefecture
• Tephra
• Pleistocene (5.0, 4.7 Ma, FT)

• Lithofacies: Pumiceous pyroclastic flow deposit
• Sedimentary structures: Parallel stratification, Cross stratification
• Paleocurrent: North Northwest

• Thickness: 2 - 8 m
• Host: Nakawatari Formation

• Distribution: Akamatsu, Okura city - Noguchi, Sakegawa city, Mogami county, Yamagata pref.

• Moriya et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.1, pp.1-15 DOI