Geoarqueologia en la localidad Nutria Mansa (pdos. de gral. alvarado y loberia, provincia de buenos aires)

Abstract

Geoarchaeological studies carried out in the Nutria Mansa archaeological locality (Southern Buenos Aires Province) are presented. Archaeological research started in this area in 2000, revealing the presence of two surface sites (NM1sup y NM2sup) where artifacts were exposed by plowing, and one site in stratigraphy (NM1) where a 23 m2 excavation provided lithic material and very abundant faunal remains (about 140.000 pieces). The geoarchaeological analyses were focused in stratigraphy, and the evaluation of formation processes and environmental context of the archaeological record found at the Nutria Mansa locality. Among the results of this work are the explanation of some taphonomic processes involved in the excavated site NM1, and the generation of expectations about integrity, resolution and preservation of the cultural evidence in different places of the landscape occupied by Prehispanic people as the loessic divide (no disturbed and plowed soils), slopes, and the main valley.