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Ishikawa mass

• Plutonic rocks
• Cretaceous
• Intruded in: Gozaisho-Takanuki Metamorphic Rocks, Samegawa mass

• Lithofacies (Inner): Granodiorite
• Lithofacies (Middle): Quartz diorite
• Lithofacies (Outer): Tonalite
• Lithofacies (Minor): Serpentinite, Amphibolite, Hornblende gabbro

• Distribution (Width): 8 km or less
• Distribution (Length): 45 km

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

• Distribution: Ishikawa city, Ishikawa county, Fukushima pref.; Samegawa city, Higashishirakawa county, Fukushima pref.

• Kano et al. (1973) Geology of the Takanuki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 109p. (in Japanese with English abstract 6p.)