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Nakayamadaira Caldera Fill Deposit

• Coherent formation
• Valles type caldera fill deposit?
• Pleistocene

• Lithofacies: Tuff breccia, Pumice lapilli tuff, Pumice breccia, Siltstone

• Thickness: 250 m
• Upper limit: Unconformity (Kannodai Formation, Mimizukuyama Andesite, Ohayama Formation)

• Distribution: Kurikoma area, Yamagara pref. - Miyagi pref.

• Otake (2007) Jour. Geol. Soc. Japan, vol.113, no.11, pp.549-564 DOI