%0 Journal Article %T Explotaci¨®n de materias primas l¨ªticas en el sector sur de la r¨ªa Deseado: an¨¢lisis de n¨²cleos procedentes de Bah¨ªa del Oso Marino (Patagonia argentina) %A Ambr¨²stolo %A Pablo %J Intersecciones en antropolog£¿-a %D 2012 %I Scientific Electronic Library Online %X this paper explores the existence of variation in lithic raw materials exploitation strategies in bah¨ªa del oso marino, located south of the river deseado. the study was conducted on cores collected from surface and stratigraphic sites; it took into account differences in reduction techniques and distances to potential sources of lithic procurement. the results suggest the existence of variability in the strategies of lithic resource exploitation in the southern sector of the river deseado. among other significant factors are the characteristics of available lithic raw materials sources in this space, which is seen in the raw materials economic strategies adopted. the influence of such variation in relation to the range of mobility and lithic procurement strategies used by hunter gatherers who occupied the area south of the river deseado during the middle and late holocene is discussed. %K cores %K lithic raw material %K exploitation %K procurement. %U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S1850-373X2012000200007&lng=en&nrm=iso&tlng=en