Lower Tephra Group

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Lower Tephra Group

Type locality: Tottori prefecture
Volcanic rocks
Pleistocene

Lithofacies: Tephra

Older volcano
[ Upper ]
~~~~~~~~~~~~~~
Lower Tephra Group
~~~~~~~~~~~~~~
Older Volcanic Fan Deposits
~~~~~~~~~~~~~~
[ Lower ]

Daisen volcano
[ Upper ]
+__+__+__+__+_
Younger volcano
~~~~~~~~~~~~~~
Older volcano
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Tottori pref.

Kano et al. (2025) Geology of the Yonago District (2nd Ed.), Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 84p. (in Japanese with English abstract 4p.)