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The Function of Volcanic Stone Tools from Bed II at Olduvai Gorge, Tanzania

A Case Study From the FC East and FC West Sites

Bibliographic Data

ID24233780
AuthorsLena Asryan (0000-0002-7895-8812), I De La Torre (0000-0002-1805-634X), Jackson K Njau (0000-0001-8257-5585), Veerle Rots (0000-0002-6404-3160)
Year2026
Volume9
Issue1
Publication date2026-10-12
Open AccessYes
TypeARTICLE
VenueJournal of Paleolithic Archaeology (JOURNAL)
Journal identifiersISSN: 2520-8217 • E-ISSN: 2520-8217
PublisherSpringer Science and Business Media LLC (PUBLISHER)
DOI10.1007/s41982-026-00273-2
OpenAlexW7221554661
LanguageEN
References cited65

This study presents the first micro-wear analysis of stone tools made from volcanic rocks from the Olduvai Bed II FC East (FCE) and FC West (FCW) sites at Olduvai Gorge, Tanzania, dated to approximately 1.6–1.5 Ma. These sites form part of a key stratigraphic interval documenting major technological and biological transitions during the early Pleistocene. The analysed sample comprises 46 well-preserved artefacts selected from a larger assemblage of volcanic rocks. The methodological approach adopted in this study relied primarily on scanning electron microscope (SEM). Despite the age of the assemblage and the challenges posed by raw material variability, micro-wear was identified on several pieces, providing direct evidence of tool use. The distribution and morphology of traces indicate that most tools were employed in longitudinal motions and cutting actions, likely associated with butchery. A smaller subset of artefacts exhibits wear patterns consistent with scraping of medium-to-hard contact materials.

butchery · cutting action · Early Pleistocene · Lithic technology · microwear analysis · Olduvai Gorge · raw material variability · scraping · tool function · Archaeological and Geological Studies · Archaeology and Rock Art Studies · Pleistocene-Era Hominins and Archaeology

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