ANTH 1120 Lecture Notes - Lithic Reduction, Uniface, Bouri Formation
Document Summary
Chipped/flaked stone: the earliest, most common and technically complicated lithic industry. Ground, pecked and polished stone: is often associated with advent of agriculture and sedentism. First flaked stone tools appear by 2. 6 mya. Key site locations: gona and omo (ethiopia) and turkana (kenya) Classified as oldowan industry- small, crudely shaped tools. At least 3 different hominids may be associted with oldowan industry between 2. 6-1. 5. 3000 surface and excavated artifacts from 15 localities, found in fine-grained sediments of a dry riverbed 2. 52-2. 6 mya. Ar/ar dating on a volcanic ash later nearly 2m above the tool-bearing deposit determined that the gona artifacts are more than 2. 52 million years old. 2. 6 mya date was obtained for mineral-rich sediments below the artifacts using paleomagnetic dating. 2 high density locatlities (eg10 and eg12 from east gona) provide evidence of the capabilities of the earliest stone tool makers. Assemblages show sophisticated understanding of stone fracture and control similar to later oldowan assemblages. (ca.
