Iwahashiyama Granite

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Iwahashiyama Granite Shinba and Tainosho, 1997

Type locality: Takeuchitoge pass, Taima town, Katsuragi city, Nara prefecture
Plutonic rocks
Cretaceus
Intruded by: Taike Granite
Intruded in: Shigisan Granodiorite

Lithofacies: Granite
Structures: Foliated

Distribution (East - West): ca. 3 km
Distribution (South - North): ca. 1 km

Older Ryoke Granitoids (Nara pref.)
[ Young ]
~~~~~~~~~~~~~~
Takayasuyama Granite
~~~~~~~~~~~~~~
Iwahashiyama Granite
~~~~~~~~~~~~~~
Shigisan Granodiorite
~~~~~~~~~~~~~~
[ Old ]

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

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

Distribution: Takeuchitoge pass, Taima town, Katsuragi city, Nara pref.

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.)