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Yoridaizawa Lava Tsuya, 1940

• Volcanic rocks
• Holocene (July 12th - 13th, 1940)

• Lithofacies: Tholeiite series
• Lithofacies: Augite hypersthene-bearing olivine basalt lava
• Paleocurrent: to East

• Distribution (Width): ca. 20 - 100 m
• Thickness: ca. 5 m
• Running distance: ca. 0.8 km

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

• Distribution: Kamitsuki - Tsubota - Yoridaizawa creek, 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.)