Kibe Granite

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Kibe Granite

Plutonic rocks
Late Cretaceus (98.0 - 97.6 Ma, U-Pb; 87, 86.3 Ma, K-Ar; 91.3 Ma, CHIME)
Intruded in: Gamano Granodiorite, Obatake Granodiorite, Tengadake Migmatite, Zenitsuboyama Formation

Lithofacies: Biotite granite
Structures: Foliated

Younger Ryoke Granitoids (western Iwakuni, Yamaguchi pref.)
[ Young ]
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Sasugawa Granodiorite
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Soo Granodiorite
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Namera Granite
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Kibe Granite
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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: Yuugawa river - Seinan - Shoshin, Iwakuni city, Yamaguchi pref.; Ikachi, Yanai city, Yamaguchi pref.

Terabayashi et al. (2017) Jour. Geol. Soc. Japan, vol.123, no.8, pp.599-612 DOI
Higashimoto et al. (1983) Geology of the Iwakuni District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 6p.)