Koya Granite

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Koya Granite (Arita, 1949) Hara, 1962

Invalid synonym: Koya Granite 1

Type locality: Koya, Wazuka city, Soraku county, Kyoto prefecture
Plutonic rocks
Late Cretaceus (75 Ma, K-Ar; 94 Ma, Rb-Sr)
Intruded in: Ryoke Metamorphic Rocks

Lithofacies: Biotite granite

Younger Ryoke Granitoids (Kizugawa, Kyoto pref.)
[ Young ]
~~~~~~~~~~~~~~
Koya Granite
~~~~~~~~~~~~~~
Ideminami Granite
~~~~~~~~~~~~~~
Yamashiro Granite
~~~~~~~~~~~~~~
[ Old ]

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

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

Distribution: Koya - Ishidera, Wazuka city, Soraku county, Kyoto 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.)