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Geochemistry of Byzantine and Early Islamic glass from Jerash, Jordan: Typology, recycling, and provenance.

Barford, G; Freestone, I; Lichtenberger, A; Raja, R; Schwarzer, H; (2018) Geochemistry of Byzantine and Early Islamic glass from Jerash, Jordan: Typology, recycling, and provenance. Geoarchaeology , 33 (6) pp. 623-640. 10.1002/gea.21684. Green open access

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Abstract

Twenty-one objects of glass from the Decapolis city of Gerasa, N. Jordan, with characteristic vessel forms ranging from Hellenistic to Early Islamic (2nd century BCE to 8th century CE) were analyzed for major and trace elements, and sixteen samples for Sr-isotopes. The majority were produced in the vicinity of Apollonia on the Palestine coast in the 6th-7th centuries CE, and strong inter-element correlations for Fe, Ti, Mn, Mg, Nb reflect local variations in the accessory minerals in the Apollonia glassmaking sand. The ubiquity of recycling is reflected in elevated concentrations and high coefficients of variation of colorant-related elements as well as a strong positive correlation between K and P. The high level of K contamination is attributed to the use of pomace (olive processing residue) as fuel, and a negative correlation with Cl, due to volatilization as the glass was reheated. This points to an efficient system for the collection of glass for recycling in Jerash during the latter part of the first millennium CE. Differences in elemental behavior at different sites in the Levant may reflect the context of the recycling system, for example, glass from secular contexts may contain less colorants derived from mosaics than glass associated with churches.

Type: Article
Title: Geochemistry of Byzantine and Early Islamic glass from Jerash, Jordan: Typology, recycling, and provenance.
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/gea.21684
Publisher version: https://doi.org/10.1002/gea.21684
Language: English
Additional information: © 2018 The Authors Geoarchaeology Published by Wiley Periodicals, Inc. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords: Apollonia, Byzantine glass, Early Islamic glass, EMP, Gerasa, Jerash, LA-ICP-MS, Levantine, MCICP-MS, olive fuel, provenance, recycling, Sr isotope, trace elements, trade, typology
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of SandHS > Institute of Archaeology
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of SandHS > Institute of Archaeology > Institute of Archaeology Gordon Square
URI: http://discovery.ucl.ac.uk/id/eprint/10051223
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