Contemporary Phosphorites on the Continental Margin of Peru

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Science  31 Aug 1973:
Vol. 181, Issue 4102, pp. 844-845
DOI: 10.1126/science.181.4102.844


Phosphorite nodules occurring along the biologically productive continental margin of Peru have been dated by uranium-series methods. The radiometric ages range from late Pleistocene to Recent, indicating that phosphorities are currently forming in this area.