New TT-OSL absolute ages in late cenozoic sediments from gualeguaychú southeast of Entre Ríos (Argentina).

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Luiggina CAPPELLOTTO
Romina Sanci
Steven FORMAN
Liliana MARIN

Abstract

This work presents two new ages determined by the Thermally Transferred and Optically Stimulated Luminescence (TT-OSL) method on quartz grains from a pedo-sedimentary profile located in the vicinity of the current Gualeguaychú Ecoparque (33°3’8.96’’ S, 58°31’40.00’’ W), former Irazusta quarry, southeast of Entre Ríos (Argentina). The two dated levels correspond to 590310 ± 33070 and 243300 ± 10970 years (Late Cenozoic). In particular, the sedimentological descriptions allowed for the identification of estuarine deposits which, associated with the age of 243300 ± 10970 years, would suggest their link to Marine Isotope Stage 7 (MIS 7).

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How to Cite
CAPPELLOTTO, L. ., Sanci, R., FORMAN, S., & MARIN, L. (2025). New TT-OSL absolute ages in late cenozoic sediments from gualeguaychú southeast of Entre Ríos (Argentina). Revista De La Asociación Geológica Argentina, 82(4), 488-495. Retrieved from https://revista.geologica.org.ar/raga/article/view/1841
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