Hiji Tonalite

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Hiji Tonalite (Hashimoto, 1957) Makimoto et al., 1996

Invalid synonym: Hiji Quartz Diorite, Hiji Granodiorite, Tsukikurayama Gneiss, Hiji Gneiss

Plutonic rocks
Late Cretaceous
Intruded by: Andesite, Dacite dykes, Diorite dykes

Lithofacies: Hornblende biotite tonalite

Cooling rate (500 - 150 degree C): 27 degree/m.y.
Distribution (Width): ca. 0.25 - 5 km
Upper limit: Unconformity (Tsuetsukitoge Body)

Older Ryoke Granitoids (Takato, Nagano pref.)
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Tenryukyo Granite
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Hiji Tonalite
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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: Katakura - Mizukami - Mount Tsukikura, Takato town, Ina city, Nagano pref.; Nagashino, Shinshiro city, Aichi pref.; Hiki hills, Saitama pref.

Makimoto et al. (1996) Geology of the Takato District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 6p.)
Kawachi et al. (1983) Geology of the Ichinose District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)