Tessera 10. Martos mosaic (Jaén, Spain)

Black tessera belonging to the Martos mosaic (Jaén, Spain). It is located on the black line below the arches. Petrographic identification, Raman analysis, and X-ray fluorescence indicate a significant presence of Si, Al, K, and Fe. The original raw material is likely ophite/dolerite, rocks with high hardness and resistance, ranging in color from dark green to black. These subvolcanic rocks appear in small, isolated outcrops among marls at the foot of the Betic Cordillera or embedded in Triassic red clays. Numerous small outcrops of this type are found in the province of Jaén.
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Dimensions

: 1 Centimeters

: 1 Centimeters

Materials

Stone

Temporal

: Roman

: 2nd-3rd century AD

Spatial

  • : Martos mosaic
  • : Martos, Jaén, Spain
  • : WGS84
 

Copyrights

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

Digital Resources

  • Tessera 10
    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 10 on the black line below the arches
    Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
    Arquiberlab
    http://creativecommons.org/licenses/by-nc-nd/3.0/
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  • Martos 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 10. 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
    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

University Research Center for Iberian Archaeology

Raman Microscopy

Mineralogical 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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