Characteristcs of secondary lithic deposits deposits at the lower Uruguay River: applications for archaeological contexts in the inland plains of northeastern Argentina

Abstract In this paper, we present field and laboratory studies addressing gravel deposits of the lower Uruguay River. The goal was to describe the secondary deposits of pebbles located on the right bank of the river, between Concordia and Puerto Campichuelo, from an archaeological point of view. To do so, we considered various features of the surroundings and their geographical variations to describe these deposits according to their position along the course of the river. This information is important for the comparision of natural deposits with the features of pebbles recovered in regional archaeological contexts. The resulting data was used to better understand the strategies of provisioning raw material implemented by the groups that inhabited the inland plains of the province of Entre Ríos.