Ceramic vessel 30-1-3. Cueva de la Lobera

Ceramic vessel from the third terrace of the Iberian santuary Cueva de la Lobera (Castellar, Jaén, Spain). Oxidising atmosphere. Decoration with red bands. The Raman analysis was not conclusive, but the red colour is manufactured using likely hematite (Fe2O3) in high concentration (55.70 % wt of Fe according to EDXRF analysis). The use of an extra amount of iron ore to be added to the clay mix used for decoration is proposed.

Condition: New product

Dimensions

Ancho : 4.5 Centimeters

Alto : 4.5 Centimeters

Materials

pottery

Temporal

Period name : Iberians, Iberian

Date : 4th-3rd ct. BC

Spatial

Location : Cueva de la Lobera

Geopolitical area : Castellar, Jaén, Spain

Spatial reference system : WGS84

Copyrights

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

References

Digital Resources

Ceramic vessel 30-1-3. Cueva de la Lobera

Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
http://creativecommons.org/licenses/by-nc-nd/3.0/
Cueva de la Lobera. Panoramic view

Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
http://creativecommons.org/licenses/by-nc-nd/3.0/
Plan with terraces and rooms

Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
http://creativecommons.org/licenses/by-nc-nd/3.0/
EDXRF of the red decoration. Vessel 30-1-3
Pdf file Number of analyses. Red decoration: 3, ceramic paste: 2

Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
Arquiberlab
http://creativecommons.org/licenses/by-nc-nd/3.0/

Activities

Archaeometric analysis

Ceramic. Analysis of decoration

University Research Center for Iberian Archaeology

X-Ray Fluorescence

Elemental analysis of the red 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;