Sukawa Granodiorite

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Sukawa Granodiorite Nakajima, 1960

Plutonic rocks
Late Cretaceus (91 Ma, Rb-Sr)
Intruded by: Shobu Tonalite
Intruded in: Ryoke Metamorphic Rocks

Lithofacies: Hornblende biotite granodiorite, Tonalite
Structures: Foliated

Distribution (Length): ca. 6 km
Distribution (Width): ca. 1 km

Older Ryoke Granitoids (Ide, Kyoto pref.)
[ Young ]
~~~~~~~~~~~~~~
Shobu Tonalite
~~~~~~~~~~~~~~
Sukawa 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: Shirieda, Kamo town, Kizukawa city, Kyoto pref.; Izumi, Oyagyu town, Nara city, Nara pref.

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.)