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Diorite Porphyry 2 Nagamori et al., 2003

Quartz phenocryst deficient

Invalid synonym: Gojizoyama Lava

• Plutonic rocks
• Pleistocene (0.97 Ma, FT)
• Intruded in: Tanogashira Formation, Hikage Formation, Arakurayama Formation

• Sedimentary facies: Sills, Laccoliths
• Lithofacies: Diorite porphyry

• Distribution: Mount Gojizo, Togakushi, Nagano city, Nagano pref.

• Nagamori et al. (2003) Geology of the Togakushi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 109p. (in Japanese with English abstract 3p.)