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Sedimentology and paleogeographic reconstruction of the strata in and adjacent to the Sudbury impact layer in the northern Paleoproterozoic Animikie basin
(2016)
The Sudbury Impact Layer (S.I.L.) is dated at 1850 Ma and is located between the
underlying Gunflint Formation, with an age of 1878±1 Ma that was obtained from zircons in a
tuffaceous zone approximately 105 meters below ...