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High-resolution U–Pb(ID-TIMS,baddeleyite)ages are presented for mafic dykes from selected swarms in two important Amazonian regions:the Carajás Province in the east,and the Rio Apa block in the southwest–areas
High-resolution U-Pb (ID-TIMS, baddeleyite) ages are presented for mafic dykes from selected swarms in two important Amazonian regions: the Carajás Province in the east, and the Rio Apa block in the southwest-areas