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Yotsujiyama Granite Sato et al., 2022

• Type locality: Higashisue - Mount Takamatsuyama, Setouchi city, Okayama prefecture
• Plutonic rocks
• Cretaceous (ca. 85.6 Ma)
• Intruded by: Osafune Granite
• Intruded in: Ejiri Unit, Mushiage Unit, Takasagoyama Formation, Hinase Formation

• Lithofacies: Biotite hornblende granite
• Lithofacies (Marginal facies): Rhyolite

• Distribution (East - West): 2.5 km
• Distribution (South - North): 6.7 km
• Upper limit: Unconformity (Oku Formation)

• Distribution: Ouchi, Bizen city, Okayama pref.; Higashisue - Fukutani - Mount Takamatsuyama - Mount Ryuozan - Isokami, Setouchi city, Okayama pref.

• Sato et al. (2022) Geology of the Wake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 106p. (in Japanese with English abstract 4p.)