Kosanbe Lava

[ Top ] [ Japanese ]

Kosanbe Lava

Biotite rhyolite breccea included in Sanbe Base Surge Deposits and Sanbe Pyroclastic Flow Deposits

Volcanic rocks
Pleistocene

Lithofacies: Biotite rhyolite
Sedimentary structures: Flow structure

Older Sanbe stage
[ Upper ]
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Kosanbe Lava
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Older Sanbe Tephra
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Moritayama Lava
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[ Lower ]

Sanbe volcano
[ Upper ]
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4th stage
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3rd stage
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2nd stage
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1st stage
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Older Sanbe stage
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[ Lower ]

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

Distribution: Shimane pref.

Hattori et al. (1983) Geology of the Sambesan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 168p. (in Japanese with English abstract 7p.)