1950 Lava

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1950 Lava

Volcanic rocks
Holocene (September, 1950 and March, 1951)

Sedimentary facies: Scoria cone
Lithofacies: Augite bronzite basalt scoria, Lava

Post-caldera stage
[ Upper ]
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Izu-Oshima 2013 Lahar Deposit
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1954 Lava
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1950 Lava
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[ Lower ]

Oshima volcano
[ Upper ]
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Post-caldera stage
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Syn-caldera stage
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Pre-caldera stage
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[ Lower ]

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

Distribution: Oshima city, Tokyo metropolis

Isshiki (1984) Geology of the Oshima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 133p. (in Japanese with English abstract 5p.)