Kikuma Tonalite

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Kikuma Tonalite (Miyahisa and Hiraoka, 1970) Matsuura, 1997

Invalid synonym: Kikuma Granite, Kikuma-type Granodiorite

Plutonic rocks
Late Cretaceous
Intruded by: Hojo Granodiorite

Lithofacies: Tonalite, Migmatite
Sedimentary structures: Gneissose

Older Ryoke Granitoids (Imabari, Ehime pref.)
[ Young ]
~~~~~~~~~~~~~~
Kikuma Tonalite
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[ Old ]

Ryoke Belt
[ Young ]
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Ryoke Metamorphic Rocks
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Younger Ryoke Granitoids
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Older Ryoke Granitoids
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[ Old ]

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

Distribution: Aijima island, Matsuyama city, Ehime pref.; Kiuma town - Tamagawa town, Imabari city, Ehime pref.

Matsuura (1997) Geology of the Kurahashi Jima and Hashira Jima District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 53p. (in Japanese with English abstract 4p.)
Hirokawa (1965) Imabari-Seibu, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 19p. (in Japanese with English abstract 6p.)