Covering CC-R3. Oppidum Cerro de las Cabezas.

Covering from the warehouse pottery located between two towers of the south wall of the Iberian oppidum Cerro de las Cabezas (Valdepeñas, Ciudad Real, Spain). It is made with a mixture of compacted mud composed of micas, calcite (CaCO3) and quartz (SiO2) (according to the analysis by XRD). The use of calcite is specially relevant: 19.43% of Ca (WDXRF analysis).

New product

Dimensions

: 11 Centimeters

Materials

covering

Temporal

: Iberian, Iberians

: 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

Digital Resources

Activities

Archaeometric analysis

Physical-chemical analysis

Covering. Composition analysis.

University Research Center for Iberian Archaeology

X-Ray Difraction

Mineral analysis

Method of crystalline powder. The sample (2 g) is ground to powder in an Agatha mortar until an adequate particle size (0.25 mm),

X-Ray Diffraction (XRD)

The analyses were carried out in the Scientific Instrument Service of the University of Granada using a diffractometer BRUKER D8 ADVANCE equipped with a copper tube, geometry θθ and with a LYNXEYE Detector. Diffraction data were collected in the range of 2θ Bragg angles from 5º to 80º in 0.02º steps, step time 0.2 s. Peaks were identified with the Software Package Xpowder Plus and with manuals of reference.

X-Ray Fluorescence

Elemental analysis

Recommended sample quantity is 0.1 g. The sample is mixed with wax (as binder) and boric acid. This mixture is processed in the form of pellet (10 mm diameter) with the aid of a hand press and placed in an isolated chamber where a vacuum (%3C10 Pa) is made.

Wavelength Dispersive X-ray Fluorescence (WDXRF).

AXIOS Panalytical wavelength dispersive X-ray fluorescence (WD-XRF) spectrometer owned by the Center for Innovation and Technological Research in the University of Seville (CITIUS) (Figure 12). The main features of the device include: Rh anode (4.4 kW maximum power), 3 collimators (150 μm, 300 μm and 700 μm), 6 analyzer crystals (LIF200, LIF 220, PX-10, Ge111, PE002, PX-1) that allow qualitative and quantitative chemical analysis of elements from O to U in a wide range of concentrations (from main components to traces), a flow detector (for Z%3C29 elements) and a scintillation detector (for Z>29 elements).

 

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