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Katsurajima Breccia Member Shibata, 1967

• Volcanic rocks
• Miocene

• Sedimentary facies: Marine
• Lithofacies: Dacite volcanic breccia

• Source: Dacite lava dome at Shichigahama city and Funairi island
• Thickness: 3 - 20 m

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

• Distribution: Funairi island - Katsura island - Sabusawa island, Shiogama city, Miyagi pref.; Karato island - Nami island, Higashimatsushima city, Miyagi pref.

• Ishii et al. (1983) Geology of the Shiogama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 6p.)
• 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.)