Ogamo Rhyolite

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Ogamo Rhyolite

Type locality: Ogamo, Shimoda city, Shizuoka prefecture
Volcanic rocks
Late Miocene - Pliocene
Intruded in: Shimokamo Sandstone, Ishiki Formation

Sedimentary facies: Dykes, Stock
Lithofacies: Biotite rhyolite

Shirahama Group (Cape Irozaki)
[ Upper ]
?--?--?--?--?-
Ogamo Rhyolite
--------------
Aoichi Basalts
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Ichijo Andesite
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Ishiki Formation / Nijo Dacite
'''''''/,,,,,,
Irozaki Andesite
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Ogamo, Shimoda city, Shizuoka pref.; Mount Mikurayama, Minamiizu city, Kamo county, Shizuoka pref.

Sumi (1958) Mikomotojima, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 33p. (in Japanese with English abstract 6p.)