Cobalt-rich manganese nodules in Pliocene marine deposits of the onshore forearc Pisco Basin, Peru

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Onshore manganese nodules and vein coatings were recovered from Pliocene sedimentary beds in the Pisco Basin of southern Peru. Identified manganese minerals include todorokite and cryptomelane suggesting a diagenetic origin. However, the chemical composition suggests a mixed hydrogenetic/hydrothermal – diagenetic origin probably due to modification of the geochemical conditions caused by organic matter decay. The onshore exposition of Co-rich (up to 5,080 ppm) Mn nodules in the Pisco Formation suggests a possible novel economic potential to be confirmed by further study.
Idioma originalEspañol
Título de la publicación alojadaSGA2023
EstadoPublicada - 1 ene. 2023

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