Figure 3 | Scientific Reports

Figure 3

From: Functional characterization of Mousterian tools from the Caucasus using comprehensive use-wear and residue analysis

Figure 3

Use-wear and residue analyses of sample 2 from Layer 6B at Saradj-Chuko grotto. (A) Photo of sample 2, scale bar = 1 cm. The arrows indicate position of close-ups of use-wear traces shown on microscopic photos 1–3, scale bar = 1000 μm: (1) fractures on the tip, (2) crushing area on the tool base, (3) smoothing and linear striations along the tool edge. (B) SEM close-up on a sample of the black substance (bitumen residue) analyzed by FTIR and Raman spectroscopy, and Raman spectra of three residue samples.

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