Koreisan Lava Dome

[ Top ] [ Japanese ]

Koreisan Lava Dome Kano et al., 2025

Type locality: Mount Koreisan, Daisen city, Saihaku county, Tottori prefecture
Volcanic rocks
middle Pleistocene (0.35, 0.3 Ma, K-Ar)

Sedimentary facies: Lava dome
Lithofacies (Top): Flow breccia
Lithofacies: Lava, Pyroclastic deposits

Distribution (Major axis): 7.5 km
Distribution (Minor axis): 5 km
Distribution (Height): 500 - 600 m
Lower limit: Unconformity (Takaidani Lava)

Older volcano (Flank volcano)
[ Upper ]
~~~~~~~~~~~~~~
Koreisan Lava Dome
~~~~~~~~~~~~~~
Nabeyama Pyroclastic Cone
~~~~~~~~~~~~~~
Uenohara Lava
~~~~~~~~~~~~~~
Takaidani Lava
~~~~~~~~~~~~~~
Tsubokameyama Lava
~~~~~~~~~~~~~~
[ Lower ]

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

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

Distribution: Mount Koreisan, Daisen city, Saihaku county, 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.)