[ Top ] [ Japanese ]

Nojima Granodiorite Nakajima et al., 1986

Invalid synonym: Sumoto Granodiorite

• Type locality: Tokiwa dam, Nojima, Awaji city, Hyogo prefecture
• Plutonic rocks
• Late Cretaceous (87.7, 85, 80.9 Ma, K-Ar; 95.0 Ma, Rb-Sr; 83-88Ma, U-Pb; 63-83Ma, FT)
• Intruded by: Iwaya Granite, Kagaribayama Granite, Granodiorite dikes, Granite porphyry dikes
• Intruded in: Tsushigawa Granite, Shizuki Tonalite, Sennan Rhyolites

• Lithofacies: Hornblende-bearing biotite granodiorite
• Lithofacies (Minor): Porphyrite, Hornblende biotite tonalite, Biotite hornblende quartz gabbro, Quartz diorite
• Structures: Foliated, Mafic enclaves

• Cooling rate: 50 - 60 degree/m.y.

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Hirabayashi - Tokiwa dam - Iwaya - Cape Uzaki - Kusumoto - Mount Kagaribayama, Nojima, Awaji city, Hyogo pref.

• Takagi et al. (2012) Jour. Geol. Soc. Japan, vol.118, no.9, pp.571-581 DOI
• Mizuno et al. (1990) Geology of the Akashi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 90p. (in Japanese with English abstract 5p.)
• Itihara et al. (1986) Geology of the Kishiwada District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)
• Huzita and Maeda (1984) Geology of the Suma District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 101p. (in Japanese with English abstract 7p.)