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Daikonjima Basalt

• Volcanic activity in Shinji Rift (Half graben)
• Volcanic rocks
• Pleistocene (0.19 Ma, K-Ar)

• Sedimentary facies: Terrestrial
• Lithofacies: Alkaline basalt lava

• Source: Mount Otsuka
• Upper limit: Unconformity? (Yasugi Formation, Nakaumi Formation)
• Lower limit: Unconformity? (Yumigahama Formation?)

• Distribution: Daikon island, Yatsuka village, Matsue city, Shimane pref.

• Sato et al. (2011) Jour. Geol. Soc. Japan, vol.117, no.8, pp.439-450 DOI
• Sawada et al. (2009) Jour. Geol. Soc. Japan, vol.115, Supplement, pp.51-70 DOI