Tenryukyo Granite

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Tenryukyo Granite Koide, 1942

Type locality: Tenryukyo valley, Yasuoka city, Shimoina county - Iida city, Nagano prefecture
Plutonic rocks
North: Late Cretaceous (64.4 Ma, K-Ar; 67.1 Ma, Rb-Sr)
Middle: Late Cretaceous (66.2 - 63.9 Ma, K-Ar; 67.1 Ma, Rb-Sr)
South: Late Cretaceous (91.2 - 89.7 Ma, CHIME)

Lithofacies: Biotite monzogranite
Structures: Gneissose

Older Ryoke Granitoids (Takato, Nagano pref.)
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Tenryukyo Granite
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Hiji Tonalite
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Older Ryoke Granitoids (Aichi)
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Kamihara Tonalite
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Tenryukyo Granite
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Kiyosaki Granodiorite
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Ryoke Belt
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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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------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Yasuoka city, Shimoina county, Nagano pref.; Iida city, Nagnao pref.; Oshika city, Shimoina county, Nagano pref.; Toyone city, Kitashitara county, Aichi pref.; Kira town - Hazu, Nishio city, Aichi pref.; Kachigawa, Toyokawa city, Aichi pref.; Sakuma dam, Hamamatsu city, Shizuoka pref.

Kanai et al. (2014) Jour. Geol. Soc. Japan, vol.120, no.1, pp.23-35 DOI
Miyazaki et al. (2008) Geology of the Goyu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 97p. (in Japanese with English abstract 3p.)