Tessera 45. Scrollworks mosaic. Marroquíes Altos (Jaén, Spain))

Dark gray tessera belonging to the Roleos mosaic at the Marroquíes Altos Archaeological Site (Jaén, Spain). Raman analysis indicates the presence of calcite (CaCO3), and X-ray fluorescence shows a high Ca content and a significant presence of Sr. The raw material used in its manufacture was limestone.
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Dimensions

: 1 Centimeters

: 1 Centimeters

Materials

Stone

Temporal

: Roman

: 2nd century AD

Otros metadatos

Spatial

  • : Marroquíes Altos, Scrollworks Mosaic
  • : Jaén, Spain
  • : WGS84
 

Copyrights

Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)

References

Blázquez, J.M. (1981): Mosaicos romanos de Córdoba, Jaén y Málaga. Madrid. Consejo Superior de Investigaciones Científicas.

Ortofoto del mosaico de los Roleos

Sánchez, A., Montejo, M., Tuñón, J. et al. (2026): Integrated portable spectroscopy for the analysis of Roman mosaics from Marroquíes Altos, Jaén, Spain. npj Heritage Science, 14, 55

Digital Resources

  • Tesera 45
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • Tessera 45 in a scrollwork
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • Scrollworks mosaic
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • Tessera 45. Raman spectrum IUIAI-UJA
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • IUIAI-UJA (pdf file)
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
    [ver más...] [ver menos]
  • IUIAI-UJA
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
    [ver más...] [ver menos]

Activities

  • Archaeometric analysis
  • Physical-chemical analysis
  • Tessera. Composition analysis

University Research Center for Iberian Archaeology

Raman Microscopy

Mineral analysis

Non destructive. Surface cleaning. Sample pretreatment is not required. Direct measurement

Portable Raman spectrometer (model BWS445-785S innoRam) equipped with a CCD detector, a handheld fiber-optic probe, an automated MicroBeam tripod, a benchtop stand for small samples, and a BAC151A camera (University Research Institute for Iberian Archaeology, University of Jaén). A 785 nm diode laser (300 mW) was used, with a spectral resolution better than 4.5 cm-1

X-Ray Fluorescence

Elemental analysis

Non destructive. Surface cleaning. Sample pretreatment is not required. Direct measurement

Portable Olympus Innov-X Delta Premium X-ray fluorescence spectrometer equipped with a rhodium (Rh) anode X-ray tube and a 20 mm2 SDD detector. An aluminum (Al) filter was applied to measure high-Z elements (from Fe onward) using a voltage of 40 kV and a current of 38.7 µA. Without filtering (low-Z elements), a voltage of 10 kV and a current of 50.8 µA can be applied. Measurements were performed in air for 150 s. The X-ray excitation beam was collimated through a window with dimensions of 3×3 mm2
 

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