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Abukuma Granitic Rocks
A part of so-called Abukuma Belt.
- Type locality: Abukuma region, Fukushima prefecture
- Plutonic rocks
- Early Cretaceous (110 - 100 Ma; 101 - 92 Ma, Rb-Sr; 110 - 86.1 Ma, K-Ar; 103 - 97.3 Ma, Ar-Ar; 118.0 - 100.4 Ma, U-Pb)
- Lithofacies: Hornblende biotite granodiorite, Hornblende-bearing biotite granodiorite, Biotite granite, Muscovite biotite granite, Granodiorite
- Lithofacies (Minor): Hornblende biotite diorite
- Abukuma Granitic Rocks
- [ Young ]
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- Granodiorite
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- Muscovite biotite granite
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- Biotite granite
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- Hornblende-bearing biotite granodiorite
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- Hornblende biotite granodiorite
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- [ Old ]
------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Abukuma region, Fukushima pref.
- Furukawa et al. (2018) Geology of the Azuma Yama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 74p. (in Japanese with English abstract 3p.)
- Kubo et al. (2015) Geology of the Kawamata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 86p. (in Japanese with English abstract 4p.)
- Ando et al. (2011) Jour. Geol. Soc. Japan, vol.117, Supplement, pp.49-67 DOI
- Kubo et al. (2002) Geology of the Kawamae and Ide District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 136p. (in Japanese with English abstract 6p.)
- Yanagisawa et al. (1996) Geology of the Somanakamura District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 114p. (in Japanese with English abstract 9p.)
- Sakaguchi (1995) Geology of the Nihonmatsu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 4p.)
- Kubo et al. (1994) Geology of the Namie and Iwaki-Tomioka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 104p. (in Japanese with English abstract 7p.)
- Kubo et al. (1990) Geology of the Haramachi and Omika District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 138p. (in Japanese with English abstract 7p.)
- Kano et al. (1973) Geology of the Takanuki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 109p. (in Japanese with English abstract 6p.)