Presentation Consistent occurrence of moderately elevated d18O magmas in Acasta gneiss complex from 4.0 to 3.5 Ga.

牛久保, 孝行  ,  Iizuka, Tsuyoshi  ,  Spicuzza, Micheal  ,  Valley, John  ,  USHIKUBO, TAKAYUKI  ,  Iizuka, Tsuyoshi  ,  Spicuzza, Micheal  ,  Valley, John

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