Optically stimulated luminescence dating of hearths from the Fazzan Basin, Libya: A tool for determining the timing and pattern of Holocene occupation of the Sahara

摘要: Abstract Circular concentrations of burned stone fragments are widespread in the Sahara, and generally interpreted as ancient hearths. These hearths provide a rich resource for reconstructing pattern timing Holocene human occupation North African drylands. However, this has not been fully exploited since only 5% contain dateable carbon, collection carbon frequently results destruction hearth. Previous research indicates that anthropogenic firing empties optically stimulated luminescence (OSL) source traps quartz grains within hearth rocks. Consequently, OSL signal should means determining time elapsed last Saharan To test applicability approach to hearths, samples were collected from site Fazzan Basin, analysed using single-grain OSL. Equivalent dose–depth profiles through rocks demonstrate they sufficiently opaque preserve record firing. Comparison with unfired parent material was sufficient empty traps. The ages internally consistent suggest use around 8 ka. Our study demonstrates dating is viable tool Sahara.