Main cone proper

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Main cone proper Isshiki, 1960

Type locality: Miyake city, Tokyo
Volcanic rocks
Stratovolcano
Pleistocene - Holocene
Intruded by: Dykes

Lithofacies: Tholeiite series
Lithofacies: Hypersthene augite olivine basalt, Olivine basalt, Augite olivine basalt
Lithofacies: Lava, Saptter, Tuff breccia, Lapilli tuff, Volcanic breccia, Pumice tuff, Agglomerate
Lithofacies (Minor): Conglomerate, Augite hypersthene andesite pumice tuff

Main cone
[ Upper ]
~~~~~~~~~~~~~~
Older parasitic cone and crater
~~~~~~~~~~~~~~
Main cone proper
~~~~~~~~~~~~~~
[ Lower ]

Miyakejima volcano
[ Upper ]
~~~~~~~~~~~~~~
Younger parasitic cone and crater
~~~~~~~~~~~~~~
Central cone
~~~~~~~~~~~~~~
Main cone
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Miyake city, Tokyo
Fossils: Camellia japonica
Fossils (Conglomerate): Shellfishes

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.)