Myojinyama Welded Lapilli Tuff Member

Myojinyama Welded Lapilli Tuff Member (Fujii et al., 1979) Sato et al., 2022

Invalid synonym: Myojinyama Formation, Myojinyama Rhyolite Member

Type locality: Yakiyama - Shizutani, Bizen city, Okayama prefecture
Volcanic rocks
Late Cretaceous

Sedimentary facies: Terrestrial
Lithofacies: Rhyolite welded lapilli tuff

Thickness: ca. 200 - 350 m
Upper limit: Conformity (Yoshinaga Welded Lapilli Tuff Member)
Lower limit: Conformity (Yagitani Welded Tuff Member, Hirayamadani Welded Tuff Member)

Wake Formation
[ Upper ]
~~~~~~~~~~~~~~
Kumayama Welded Lapilli Tuff Member
'''''''/,,,,,,,
Wakefuji Rhyolite Member
--------------
Fujino Tuff Member
--------------
Yoshinaga Welded Lapilli Tuff Member
--------------
Myojinyama Welded Lapilli Tuff Member
--------------
Yagitani Welded Tuff Member
--------------
Hirayamadani Welded Tuff Member
--------------
Nodani Tuff Member
--------------
Daiyama Welded Lapilli Tuff Member
~~~~~~~~~~~~~~
[ Lower ]

Wake caldera
[ Inner ]
~~~~~~~~~~~~~~
Wake Formation
~~~~~~~~~~~~~~
Hinase Formation
~~~~~~~~~~~~~~
[ Outer ]

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

Distribution: Yakiyama - Shizutani, Bizen city, Okayama pref.; Yoshida, Wake city, Wake county, Okayama pref.

Sato et al. (2022) Geology of the Wake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 106p. (in Japanese with English abstract 4p.)
Sato et al. (2016) Geology of the Banshu-Ako District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 68p. (in Japanese with English abstract 3p.)