Kajiana Lava

[ Top ] [ Japanese ]

Kajiana Lava

Type locality: Toshima city, Tokyo
Volcanic rocks
Holocene (between 7,930 yBP and 4,000 yBP)

Sedimentary facies: Parasitic crater
Lithofacies: Low-alkaline tholeiite
Lithofacies: Olivine andesite lava

Parasitic crater lava
[ Upper ]
~~~~~~~~~~~~~~
Miana Lava
~~~~~~~~~~~~~~
Kajiana Lava
~~~~~~~~~~~~~~
[ Lower ]

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.)