Figure 7 | Scientific Reports

Figure 7

From: Pyrometamorphic process of ceramic composite materials in pottery production in the Bronze/Iron Age of the Northern Caucasus (Russia)

Figure 7

Comparison of FT-IR spectra in the transmittance mode (intensity normalized to 1) and reflectance mode (intensity from a 70 µm aperture size) of representative samples ordered according to the estimated firing degree: (a) Ransyrt 1 ceramics: Ca-poor matrix by transmittance and reflectance IR; Ca-rich matrix by transmittance and reflectance IR; (b) Kabardinka 2 ceramics: Ca-poor matrix by transmittance and reflectance IR; Ca-rich matrix by transmittance and reflectance IR; (c) ceramics fired in the controlled reducing atmosphere: Ca-poor matrix by transmittance and reflectance IR.

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