Daiyama Quartz Diorites

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Daiyama Quartz Diorites Ozawa and Sumi, 1961

Type locality: Mount Daiyama, Kaneyama city, Mogami county, Yamagata prefecture
Plutonic rocks
Miocene
Intruded in: Onnagawa Formation, Nakanomata Tuff Breccia Member, Akakura Tuff Member

Lithofacies: Biotite hornblende quartz diorite, Hornblende diorite, Hornblende quartz diorite porphyrite

Daiyama Quartz Diorites
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Daiyama Body
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Ozawa Body
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Okuromoriyama Body
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Kuromori Body
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Hosawa Body
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------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Mount Daiyama, Kaneyama city, Mogami county, Yamagata pref.; Okuromoriyama, Iwadai, Ugo city, Okachi county, Akita pref.; Renkadai - Ozawa, Yuzawa city, Akita pref.

Ozawa et al. (1979) Geology of the Yuzawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 64p. (in Japanese with English abstract 4p.)
Ozawa and Sumi (1961) Uzenkaneyama, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 66p. (in Japanese with English abstract 5p.)