[ Top ] [ Japanese ]

Nemari Tuffaceous Sandstone Member Ishii et al., 1982

• Type locality: Nemawari, Matsushima city, Miyagi county, Miyagi prefecture
• Coherent formation
• Miocene
• Interfingered: Upper Member

• Lithofacies (Upper): Siltstone
• Lithofacies (Lower): Tuffaceous sandstone, Sandy pumice tuff

• Thickness: ca. 60 m
• Upper limit: Bottom of breccia or tuffaceous sandstone beds
• Upper limit: Conformity (Shirasakayama Tuff Member)
• Lower limit: Unconformity (Middle Pumice Tuff Member, Otsuka Formation, Matsushimawan Group)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Nemawari - Jonai - Mount Hagigamori, Matsushima city, Miyagi county, Miyagi pref.

• Ishii et al. (1982) Geology of the Matsushima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 121p. (in Japanese with English abstract 9p.)