Macro- and micro-traces of hafting on quartz tools from Pleistocene sites in the Sierra de Capivara in Piaui (Brazil)

A series of attributes observed on a number of quartz tools from Pleistocene deposits in Sierra de Capivara (Piauí, Brazil) are described. These attributes or traces are mainly notches, retouching and fractures on non-active parts of the tools which were possibly made in order to haft those implements in some way. These morphological alterations and other probable microscopic traces are identified and described as hafting wear and are compared with the traces attributed to the use of the tools in other productive tasks.