Yagitani Welded Tuff Member

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

Invalid synonym: Yagitani Dacite Member

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

Sedimentary facies: Terrestrial
Lithofacies: Hornblende biotite dacite - Rhyolite welded tuff

Thickness: ca. 30 - 150 m
Upper limit: Conformity (Myojinyama Welded Lapilli Tuff Member)
Lower limit: Conformity (Hirayamadani Welded Tuff Member)

Wake Formation
[ Upper ]
~~~~~~~~~~~~~~
Kumayama Welded Lapilli Tuff Member
'''''''/,,,,,,,
Wakefuji Rhyolite Member
--------------
Fujino Tuff Member
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Yoshinaga Welded Lapilli Tuff Member
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Myojinyama Welded Lapilli Tuff Member
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Yagitani Welded Tuff Member
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Hirayamadani Welded Tuff Member
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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 - Fukumitsu - Mount Myojinyama, Bizen city, 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.)