Iwaya Granite

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Iwaya Granite Suwa and Nureki, 1968

Invalid synonym: Myojin Granite

Type locality: Iwaya, Awaji city, Hyogo prefecture
Plutonic rocks
Late Cretaceous (80.9, 70.3 Ma, K-Ar)
Intruded by: Biotite granodiorite dikes
Intruded in: Sumoto Granodiorite, Nojima Granodiorite

Lithofacies: Biotite granite

Distribution (Width): ca. 1 km

Granitic rocks III
~~~~~~~~~~~~~~
Tosanji Granite
~~~~~~~~~~~~~~
Senzan Granite
~~~~~~~~~~~~~~
Kagaribayama Granite
~~~~~~~~~~~~~~
Iwaya Granite
~~~~~~~~~~~~~~

Younger Ryoke Granitoids (Awaji island)
[ Young ]
~~~~~~~~~~~~~~
Granitic rocks III
~~~~~~~~~~~~~~
Granitic rocks II
~~~~~~~~~~~~~~
[ Old ]

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

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

Distribution: Matsuhonoura - Iwaya - Cape Uzaki - Nagahama - Cape Ezaki, Awaji city, Hyogo pref.

Takagi et al. (2012) Jour. Geol. Soc. Japan, vol.118, no.9, pp.571-581 DOI
Mizuno et al. (1990) Geology of the Akashi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 90p. (in Japanese with English abstract 5p.)
Huzita and Maeda (1984) Geology of the Suma District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 101p. (in Japanese with English abstract 7p.)