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Nibori Granite
- Plutonic rocks
- Cretaceous
- Intruded by: Quartz porphyry dikes, Porphyrite dikes
- Intruded in: Nigaki Group
- Distribution (East - West): ca. 10 km
- Distribution (South - North): ca. 7 km
------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Okayama pref.
- Mitsuno and Omori (1965) Susai, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 59p. (in Japanese with English abstract 17p.)