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Ohta Mass Takizawa et al., 1990

• Plutonic rocks
• Cretaceous
• Intruded in: Isatomae Formation

• Lithofacies: Quartz diorite

• Distribution: 0.2 x 1.3 km² or smaller

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Ohta, Monou town, Ishinomaki city, Miyagi pref.

• Takizawa et al. (1990) Geology of the Toyoma District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 126p. (in Japanese with English abstract 8p.)