Ma 8

Coherent formation
Pleistocene

Sedimentary facies: Marine
Sedimentary facies: Inner bay
Lithofacies: Clay

Host: Shodai Formation, Manchidani Formation, Hacchoike Member, Shinkori Formation, Tanaka Formation, Upper Most part of Osaka Group

Osaka Group
[ Upper ]
~~~~~~~~~~~~~~
Ma 10
~~~~~~~~~~~~~~
Ma 9
~~~~~~~~~~~~~~
Ma 8
~~~~~~~~~~~~~~
Ma 7
~~~~~~~~~~~~~~
Ma 6
~~~~~~~~~~~~~~
Ma 5
~~~~~~~~~~~~~~
Ma 4
~~~~~~~~~~~~~~
Ma 3
~~~~~~~~~~~~~~
Ma 2
~~~~~~~~~~~~~~
Ma 1.7
~~~~~~~~~~~~~~
Ma 1.5
~~~~~~~~~~~~~~
Ma 1.3
~~~~~~~~~~~~~~
Ma 1
~~~~~~~~~~~~~~
Ma 0.5
~~~~~~~~~~~~~~
Ma 0
~~~~~~~~~~~~~~
Ma -1
~~~~~~~~~~~~~~
[ Lower ]

Second Setouchi Supergroup (Osaka pref. - Hyogo pref.)
[ Upper ]
~~~~~~~~~~~~~~
Osaka Group
~~~~~~~~~~~~~~
[ Lower ]

[ Upper ]
~~~~~~~~~~~~~~
Second Setouchi Supergroup
?--?--?--?--?-
First Setouchi Supergroup
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Mount Machikaneyama, Osaka pref.
Tephra: Kasuri

Hongo (2009) Jour. Geol. Soc. Japan, vol.115, no.2, pp.64-79 DOI
Miyachi et al. (2005) Geology of the Kyoto-Seinambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 90p. (in Japanese with English abstract 4p.)
Ozaki et al. (2000) Geology of the Nara District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 162p. (in Japanese with English abstract 5p.)
Huzita and Kasama (1982) Geology of the Osaka-Seihokubu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 112p. (in Japanese with English abstract 8p.)