Diachronic Variation in Microlith Production Systems During the Late Pleistocene, Algeria

Abstract

The Iberomaurusian lithic industries in the Maghreb are known for their microlithization characteristics beginning ca. 25 ka cal BP. The analyses of the Iberomaurusian lithic assemblages in Algeria have mostly focused on typological and stylistic issues. These are good for distinguishing the various archaeological entities encountered in the region but inadequate for understanding the techno-economic behaviors that these industries supported. A technological approach to analysis allows for the recognition of the choices made by the knappers throughout the core reduction processes, the blank production, the transformation of blanks into tools, and the debitage methods and techniques. It has proven useful for understanding not only lithic production process but also the roles that lithic tools played in various subsistence economies. Hence, this paper uses a technological approach to reanalyze the lithic assemblages from Tamar Hat, Rassel, and Columnata. The lithic industries of these three sites are characterized by the tendency toward microlithization as attested by the presence of small chipped stone artifacts on diminutive blanks. The results suggest that the hunter-gatherer populations of the Maghreb produced microliths using a wide range of technological options during the Late Pleistocene. The study also reveals diachronic changes in the production modalities of the microliths. These changes are likely related to variations in hunting strategies in different ecological niches and as adaptive strategies to various paleoclimatic events of the Late Pleistocene.