[ Top ] [ Japanese ]

Onamedake Lava

• Type locality: Mount Onamedake, Mount Akita-Komagatake, Senboku city, Akita prefecture
• Volcanic rocks
• Pleistocene - Holocene

• Lithofacies: Clinopyroxene orthopyroxene olivine basalt lava, Volcanic blocks

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

• Distribution: Mount Onamedake, Mount Akita-Komagatake, Senboku city, Akita pref.

• Suto and Ishii (1987) Geology of the Shizukuishi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 142p. (in Japanese with English abstract 5p.)