Abstract
The aim of this project is to characterize and differentiate river, estuarine and marine sub-environments, in the Río de La Plata - South Atlantic Ocean gradient using a multi-proxies analysis.This analysis combines the use of bio-indicator organisms and geo-chemical proxies. Among these, proxies of terrigenous input (Al and Ti, Fe/Ca and Ti/Ca ratios), organic matter origin (´13C, ´15N a…