Toshima volcano

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Toshima volcano

Type locality: Toshima city, Tokyo
Volcanic rocks
Pleistocene - Holocene

Sedimentary facies: Stratovolcano
Lithofacies: Low-alkaline tholeiite
Lithofacies: Basalt lava, Pyroclastic rocks, Andesite lava

Distribution (Diameter): ca. 5 km
Distribution (Height): ca. 600 m
Volume: ca. 4 km³

Toshima volcano
[ Upper ]
+__+__+__+__+_
Parasitic crater lava
~~~~~~~~~~~~~~
Volcaniclastic deposits
~~~~~~~~~~~~~~
Main stratovolcano
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Toshima city, Tokyo

Isshiki (1978) Geology of the Toshima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 32p. (in Japanese with English abstract 2p.)