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PreviewIssue DateTitleAuthor(s)
Bahlburg-Evidence_of_Early_to_Middle_Ordovician.pdf.jpg2006-11Evidence of Early to Middle Ordovician arc volcanism in the Cordillera Oriental and Altiplano of southern Peru, Ollantaytambo Formation and Umachiri bedsBahlburg, Heinrich; Carlotto Caillaux, Víctor Santiago; Cárdenas Roque, José Dionicio