Jogashiro Formation

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Jogashiro Formation

Type locality: Tanabe, Kashiwara city, Osaka prefecture
Volcanic rocks
Miocene

Lithofacies: Biotite orthopyroxene dacite lava, Biotite ryolite tuff, Dacite tuff, Conglomerate

Lower limit: Conformity (Harakawa Formation)

Jogashiro Formation
?--?--?--?--?-
Tamateyama Tuff Bed
?--?--?--?--?-
Terayama Dacite
?--?--?--?--?-

Nijo Group
[ Upper ]
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Jogashiro Formation
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Harakawa Formation
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Donzurubo Formtion
~~~~~~~~~~~~~~
[ Lower ]

Setouchi Volcanic Rocks (Nara pref. - Osaka pref.)
[ Upper ]
~~~~~~~~~~~~~~
Nijo Group
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Tanabe - Mount Tamateyama - Takaida - Kokubu, Kashiwara city, Osaka pref.; Terayama - Mount Hachibuseyama, Habikino city, Osaka pref.; Anamushi - Sekiya, Kashiba city, Nara pref.

Sato et al. (2012) Jour. Geol. Soc. Japan, vol.118, Supplement, pp.53-69 DOI
Shinjoe et al. (2007) Jour. Geol. Soc. Japan, vol.113, no.7, pp.310-325 DOI
Miyachi et al. (1998) Geology of the Osaka-Tonambu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 113p. (in Japanese with English abstract 5p.)