INTERPRETACIÓN DE EDADES CARBONO-14 INVERTIDAS Y MEZCLADAS EN LA ESPIGA DE PLAYA HOLCÉNICA DE GENERAL D. CERRI (BAHÍA BLANCA, PROVINCIA DE BUENOS AIRES, ARGENTINA)
AbstractINTERPRETATION OF INVERTED AND MIXED C-14 DATES IN THE HOLOCENE BEACH SPIT OF GENERAL D. CERRI (BAHÍA BLANCA, BUENOS AIRES PROVINCE, ARGENTINA). - Access to the beach "General D. Cerri" is diagonally across a recurved spit of Holocene age. Study of the ridges on the spit indicate a sedirnentary drift away from the centre of the estuary. The nature of the sediments, as well as the superposition and inversion of 14C dates indicate high energy transport. Field studies, paleontological analysis and 14C dates suggest the existence of two majar times of lateral drifting of the spit. These may be correlated with two ingressive stadia of the Holocene sea. Also included is a discussion of the factors which must be considered when using 14C ages from shells taken from geoforms produced by high energy wave action.
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