Shigisan Granodiorite

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Shigisan Granodiorite Collaborative Research Group for the Ryoke Belt in the Ikoma Mountains, 1997

Type locality: Mount Shigisan, Heguri city, Ikoma county, Nara prefecture
Plutonic rocks
Cretaceus
Intruded by: Takayasuyama Granite, Iwahashiyama Granite, Katagami Granite, Katashimo Granodiorite
Intruded in: Ryoke Metamorphic Rocks

Lithofacies: Biotite granodiorite
Structures: Porphyritic, Foliated

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

Ryoke Belt
~~~~~~~~~~~~~~
Ryoke Metamorphic Rocks
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Younger Ryoke Granitoids
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Older Ryoke Granitoids
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------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Mount Shigisan, Heguri city, Ikoma county, 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.)