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Harioka Mass Takizawa et al., 1990
Composed of 2 bodies
- Lithofacies: Quartz diorite
- Distribution (Diameter): ca. 1 km, 650 m
------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Toriyamori - Kamaya pass, Harioka, Ogachi 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.)