Figure 3 | Scientific Reports

Figure 3

From: Symbolic innovation at the onset of the Upper Paleolithic in Eurasia shown by the personal ornaments from Tolbor-21 (Mongolia)

Figure 3

Surface roughness parameters registered on the graphite pendant with confocal microscopy: (a) Double boxplots showing the four more informative parameters registered with confocal microscopy on each surface of the pendant; (b) 3D views of the surface of flat side of the pendant produced by confocal microscopy. The 3D images in the right column are filtered with a Gaussian filter with a 250 µm cut-off. The positive skewness of the distribution is visible on the grey surface on the z scale representing the distribution of the height measurements.

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