the Acasta gneiss complex, Northwest Territories

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lion years of Earth's history. de zircon se sont ... Earth's history (the geological period several Archean cratons (e.g., Nutman et termed the .... Corfu, G.M. Ross, M.A. Hamilton, O. van. Breemen .... Compston, W. and Pidgeon, R.T., 1986, Jack.