Registros de fluctuaciones paleobatimétricas del sistema lacustre Pueyrredon-Posadas-Salitroso durante el Pleistoceno Tardío? - Holoceno Temprano, noroeste de Santa Cruz, Argentina

the palaeocoast line positions of the lacustrine system of pueyrredón - posadas - salitroso lakes were determined through the study of the lacustrine deposits, which were dated between the late pleistocene? - early holocene, together with a digital elevation model (dem). this has demonstrated the link among them verified on some specific palaeoheight levels. in this research, paleo-bathymetric geoindicators, as relative height of glaci-lacustrine, coastal sand and fandelta deposits onto the southern margin of pueyrredon lake, and absolute dating techniques (ams & 14c), fossil trace and fossil and current malacofauna comparison were used in order to develop palaeoenvironment interpretations.