Work2014

Native Silver Resources in Iberia

Mercedes Murillo‐Barroso · Ignacio Montero Ruíz · Martin Bartelheim

13 citations0/0 files storedUCL Discovery (University College London)

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Metallurgy and Cultural Artifacts Archaeological and Geological Studies Cultural Heritage Materials Analysis

Abstract

The use of silver in south-eastern Iberia during the Bronze \nAge (c. 225o–145o cal BC) is conspicuous in the so-called El \nArgar Culture. Trace elements detected in the compositional \nanalyses of the objects coupled with the absence of cupellation \nresidue reveal that native silver or silver chlorides \n(mainly cerargyrite) were used as resources. \nIn this paper we present all the Iberian deposits of native \nsilver or silver chlorides and discuss their accessibility in \nprehistoric times as well as their compositional characterisation \nby energy dispersive X-ray fluorescence (EDXRF) analyses \nand a scanning electron microscope with energy dispersive \nX-ray spectroscopy (SEM-EDX). A first approach towards \nthe definition of their isotopic fields by lead isotope analyses \n(LIA) is also presented. LIA were conducted using an inductively \ncoupled plasma multi-collector mass spectrometer \n(ICP-MC-MS). / Die Nutzung von Silber im Südosten der Iberischen Halbinsel \nist während der Bronzezeit (ca. 225o–145o cal BC) besonders \nin der sogenannten El Argar Kultur auffallend. Die Analyse \nder Materialzusammensetzung (Spurenelemente) zeigt, dass \nnicht durch Kupellation gewonnenes, sondern gediegen Silber \noder Silberchlorid (hauptsächlich Cerargyrit) als Rohstoffe \ngenutzt wurden. \nDer folgende Beitrag stellt alle Vorkommen gediegen Silbers \nund Silberchlorids auf der Iberischen Halbinsel vor und \ndiskutiert deren Zugänglichkeit in vorgeschichtlicher Zeit \nsowie die chemische Zusammensetzung ermittelt durch energiedispersive \nRöntgenfluoreszenzanalyse (EDRFA) und energiedispersive \nRöntgenspektroskopie im Rasterelektonenmikroskop \n(REM-EDX). Des Weiteren werden erste Ergebnisse der \nBleiisotopenanalyse vorgestellt. Diese wurde mittels induktiv \ngekoppelter Plasma-Multikollektor Massenspektrometrie (ICPMC-MS) \ndurchgeführt.

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Cited by

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