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WDXRF analysis of Iberian unfired potsherds from the Late Iron Age

Frerebeau, Nicolas


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    "description": "<p>This data set contains 15 chemical analyses of unfired potsherds from the Iberian workshop of the Mas de Moreno (Teruel, Spain). The chemical composition of the samples was obtained by wavelength-dispersive X-ray fluorescence spectrometry (WDXRF).</p>\n\n<p><strong>Method</strong></p>\n\n<p>The outer surfaces of all the samples were mechanically removed prior to analysis.</p>\n\n<p>The samples were heated to 950&deg;C for one hour after 24h drying at 50&deg;C, weighted for LOI calculation and ground in a tungsten carbide mortar. 0.8 g of powder was mixed with 3.2 g of Spectroflux 110 flux (Johnson Matthey; 33.5% metaborate and 66.5% lithium tetraborate) and melted in gold-platinum crucibles with an autofluxer melting device (Breitl&auml;nder).</p>\n\n<p>The data were collected with a SRS 3400 (Bruker) spectrometer of 3 kW power (working at 60 kV, 100 mA max.). The spectrometer was equipped with a rhodium tube window, four analyser crystals (OVO-55, LiF200, LiF220, PET), two collimators (0.46&deg; and 0.15&deg;) and two sensors (a proportional&nbsp;Ar/CH4 gas-flow counter and a scintillation counter). The calibration of the instrument was carried out on 40 international certified reference materials.</p>\n\n<p><strong>Data description</strong></p>\n\n<ul>\n\t<li><em>sample</em>: sample reference.</li>\n\t<li><em>date</em>: date of the analysis.</li>\n\t<li><em>laboratory</em>: analysis laboratory.</li>\n\t<li><em>stratigraphy</em>: stratigraphic unit (all dated to the first half of the 1<sup>st</sup> century BC).</li>\n\t<li><em>artefact</em>: typology.</li>\n\t<li><em>part</em>: analysed part of the artefact.</li>\n\t<li><em>LOI</em>: loss on ignition (percent).</li>\n\t<li><em>CaO</em>, <em>Fe<sub>2</sub>O<sub>3</sub></em>, <em>TiO<sub>2</sub></em> , <em>K<sub>2</sub>O</em>, <em>SiO<sub>2</sub></em> , <em>Al<sub>2</sub>O<sub>3</sub></em> , <em>MgO</em>, <em>MnO</em>, <em>Na<sub>2</sub>O</em>, <em>P<sub>2</sub>O<sub>5</sub></em>: oxide mass percents.</li>\n\t<li><em>Zr</em>, <em>Sr</em>, <em>Rb</em>, <em>Zn</em>, <em>Cr</em>, <em>Ni</em>, <em>La</em>, <em>Ba</em>, <em>V</em>, <em>Ce</em>, <em>Y</em>, <em>Th</em>, <em>Pb</em>, <em>Cu</em>: ppm.</li>\n</ul>\n\n<p>Data below the following limits should be considered unreliable:</p>\n\n<ul>\n\t<li><em>Na<sub>2</sub>O</em>: 0.5 %</li>\n\t<li><em>La</em>: 24 ppm</li>\n\t<li><em>Y</em>: 15 ppm</li>\n\t<li><em>Th</em>: 15 ppm</li>\n\t<li><em>Pb</em>: 20 ppm</li>\n\t<li><em>Cu</em>: 10 ppm</li>\n</ul>", 
    "contributors": [
      {
        "affiliation": "CNRS", 
        "type": "DataCollector", 
        "name": "Thirion-Merle, Val\u00e9rie"
      }
    ], 
    "title": "WDXRF analysis of Iberian unfired potsherds from the Late Iron Age", 
    "language": "eng", 
    "notes": "This study received a state financial support managed by the Agence Nationale de la Recherche (France) through the program \"Investissements d'avenir\" (ref. ANR-10-LABX-52).", 
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    "references": [
      "Nicolas Frerebeau (2015). Choix et trajectoires techniques dans le domaine ib\u00e9rique \u00e0 la fin de l'\u00c2ge du Fer : La cuisson des mat\u00e9riaux c\u00e9ramiques dans la vall\u00e9e de l'\u00c8bre (IIIe\u2013Ier s. av. J.-C.). Unpublished PhD thesis. Pessac: Bordeaux Montaigne University.", 
      "Frerebeau, N. & Sacilotto, C. (2017). On some Iberian unfired pottery sherds from the Late Iron Age (second century BC). In A. Gorgues, K. Rebay-Salisbury & R. B. Salisbury (Eds.), Material Chains in Late Prehistoric Europe and the Mediterranean \u2013 Time, Space and Technologies of Production. Bordeaux: Ausonius \u00c9ditions, p. 157-169. M\u00e9moires 48."
    ], 
    "thesis": {
      "university": "Universit\u00e9 Bordeaux Montaigne", 
      "supervisors": [
        {
          "affiliation": "CNRS", 
          "name": "Pernot, Michel"
        }, 
        {
          "affiliation": "Universit\u00e9 Bordeaux Montaigne", 
          "name": "Gorgues, Alexis"
        }
      ]
    }, 
    "keywords": [
      "WDXRF", 
      "archaeology", 
      "ceramic", 
      "Iron Age", 
      "Iberian Peninsula"
    ], 
    "publication_date": "2015-04-25", 
    "creators": [
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        "affiliation": "Universit\u00e9 Bordeaux Montaigne", 
        "name": "Frerebeau, Nicolas"
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