Probing the Sources of Lithic Assemblage Variability: A Regional Case Study near the Homolovi Ruins, Arizona
Problems with the interpretation of regional lithic assemblage variability are briefly discussed. Several methods are introduced for controlling the sources of variation that influence the composition of lithic assemblages. The utility of these methods is illustrated with a statistical analysis of lithic artifact collections from thirteen sites near the Homolovi Ruins Group north of Winslow, Arizona. Results indicate strong technological differences between four site classes that cannot be attributed to site type, location, or time exclusively. Some arguments based on considerations of regional settlement and organization are proposed to account for the technological patterning that pertains to each site class. The Homolovi study shows that a comprehensive understanding of interassemblage variability necessitates that multiple lines of evidence be developed to ensure all potential sources of variability have been thoroughly examined.