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Koshikiiwa Scoria Cone Isshiki, 1960

• Type locality: Koshikiiwa, Imasaki, Miyake city, Tokyo
• Volcanic rocks
• Holocene (AD1643?)

• Sedimentary facies: Scoria cone
• Lithofacies: Tholeiite series
• Lithofacies: Basalt scoria

• Distribution (Diameter, Crater): ca. 150 m
• Distribution (Depth, Crater): 20 - 30 m
• Distribution (Height): 20 - 40 m

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Koshikiiwa, Imasaki, Miyake city, Tokyo

• Isshiki (1960) Miyake-jima, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 85p. (in Japanese with English abstract 5p.)