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Younger Ryoke Granitoids

Synonym: Stage II

• Plutonic rocks
• Late Cretaceus (85 - 67 Ma, CHIME; 120 - 90 Ma, Rb-Sr; 72 - 58 Ma, K-Ar., Older than Hiroshima Granites)

• Lithofacies: Ilmenite series

• Form: Stock
• Intrusion depth: 15 km or shallower (Shallow intrusion)
• cut D2, D3 stage structures

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

• Distribution: Kanto - Nagano - Gifu - Awaji island - Shodoshima island - Seto Inland Sea - Yamaguchi

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• Makimoto et al. (1996) Geology of the Takato District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 6p.)
• Kawachi et al. (1983) Geology of the Ichinose District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)