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Niijimayama volcano Isshiki, 1987

Invalid synonym: Niijimayama Lava

• Type locality: Mount Niijimayama, Niijima island, Niijima city, Tokyo
• Volcanic rocks
• Monogenetic volcano
• Pleistocene

• Sedimentary facies: Lava dome
• Lithofacies: Cummingtonite-bearing biotite rhyolite lava

• Distribution (South - North): 2 km
• Distribution (East - West): 1.1 km
• Distribution (Height): ca. 150 m
• Upper limit: Unconformity (Wakago volcano)

• Distribution: Mount Niijimayama - Cape Nebusaki - Awaiura, Niijima island, Niijima city, Tokyo

• Isshiki (1987) Geology of the Nii Jima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 3p.)