Chichionigawa Tonalite

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Chichionigawa Tonalite

Type locality: Chichionigawa river, Izumi city, Osakaprefecture
Plutonic rocks
Late Cretaceus
Intruded by: Mizuma Granodiorite, Jogo Granite
Transitional: Kawai Mylonite

Lithofacies: Hornblende biotite tonalite
Lithofacies (Minor): Diorite, Quartz diorite
Structures: Foliated

Distribution (East - West): 8 km or more
Distribution (South - North): ca. 1 km
Upper limit: Unconformity (Kannabi Formation)

Older Ryoke Granitoids (Kishiwada, Osaka pref.)
[ Young ]
~~~~~~~~~~~~~~
Jogo Granite
~~~~~~~~~~~~~~
Mizuma Granodiorite
~~~~~~~~~~~~~~
Konoyama Granite
~~~~~~~~~~~~~~
Chichionigawa Tonalite
~~~~~~~~~~~~~~
[ Old ]

Ryoke Belt
~~~~~~~~~~~~~~
Ryoke Metamorphic Rocks
~~~~~~~~~~~~~~
Younger Ryoke Granitoids
~~~~~~~~~~~~~~
Older Ryoke Granitoids
~~~~~~~~~~~~~~

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Chichionigawa river, Izumi city, Osaka pref.

Itihara et al. (1986) Geology of the Kishiwada District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)