Ceramic vessel CC15. Oppidum Cerro de las Cabezas

Ceramic vessel from the room 2 (centre-west) (area U2, sector F) of the manufacturing building of the Iberian oppidum Cerro de las Cabezas (Valdepeñas, Ciudad Real, Spain). Oxidising and reducing atmosphere. Decoration with semicircles and red lines and black bands. The red decoration is obtained with hematite (Fe2O3). The black decoration is the result of the transformation of hematite into magnetite (Fe3O4) in a reducing atmosphere. Elemental analysis by EDXRF confirms the presence of Fe (6.96% wt) and the absence of Mn (0.08% wt) in the black decoration.

New product

Dimensions

: 4 Centimeters

: 5 Centimeters

Materials

pottery

Temporal

: Iberians, Iberian

: Late 3rd ct. BC

Spatial

: Oppidum Cerro de las Cabezas

: Valdepeñas, Ciudad Real, Spain

: WGS84

 

Copyrights

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

References

Tuñón, J.A., Sánchez, A., Parras, D.J., Vandenabeele, P. and Montejo, M. (2016): “Micro-Raman spectroscopy on Iberian archaeological material”. Journal of Raman Spectroscopy. 47: 1514-1521.

Esteban, G. (2000): “Una característica producción cerámica pintada del Período Ibérico pleno en el sur de la Meseta”. Cuadernos de Prehistoria y Arqueología de la Universidad Autónoma de Madrid, 26: 69-84.

Digital Resources

Activities

Archaeometric analysis

Physical-chemical analysis

Ceramic. Analysis of decoration.

Raman Microscopy

Mineral analysis of the black and red decoration.

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

Micro-Raman Spectroscopy (MRS)

Renishaw ‘in via’ Reflex Spectrometer coupled with a confocal Leica DM LM microscope (CICT, University of Jaén), equipped with a diode laser (785 nm, 300 mW), and a Peltier-cooled CCD detector, calibrated to the 520.5 cm-1 line of silicon.

X-Ray Fluorescence

Elemental analysis of the red and black decoration

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

Energy dispersive X- ray fluorescence (EDXRF)

EDAX (model Eagle III) fluorescence spectrometer (CITI, University of Seville). This spectrometer is equipped with a microfocus X-ray tube with an Rh anode, a polycapillary lens for X-ray focussing, and an 80 mm2 energy dispersive Si-(Li) detector. The sample chamber incorporates an XYZ motorized stage for sample positioning. A high resolution microscope is used to position the sample on the desired distance from the polycapillary. To increase the sensitivity of the low Z elements, the sample chamber can be brought under vacuum. For the analysis of the samples, a spot size of 300 μm was chosen at an operating X-ray tube voltage of 40 kV. The tube current was adapted for each sample in order to optimise the detection of X-rays.

 

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