[ Top ] [ Japanese ]

Hayakawa Tuff Breccia

• Type locality: Hayakawa river, Hakone city, Kanagawa prefecture
• Volcanic rocks
• Pliocene (4.2 Ma, Microfossils; 5.2 Ma, FT)
• Correlation: Shirahama Group, Atami Tuff

• Sedimentary facies: Marine
• Sedimentary facies: Submarine volcano
• Lithofacies: Felsic

• Upper limit: Unknown
• Lower limit: Unknown

• Distribution: Hayakawa river, Hakone city, Kanagawa pref.

• Mannen (2014) Jour. Geol. Soc. Japan, vol.120, no.4, pp.117-136 DOI