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Fig. 4 | Heritage Science

Fig. 4

From: Underground transfer of carbonised organic residues to lithics during preliminary fire experiments: implications for archaeology

Fig. 4

Experiment 2 examples of lithics and bone heated on fresh sedges. a Lithics and bone on sedge before burial and burning. b Black residue on quartz (piece at the top right of the cluster of items in a, c). Black residue on hornfels piece (base of a, near scale bar), d black residue on quartz (this piece is left of b on the sedges). The white scale bars represent 10 mm

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