Open Access Journal: Meshing Archaeology
[First posted inwards AWOL 21 March 2012. Updated 24 Jan 2019]
Internet Archaeology
ISSN: 1363-5387
Internet Archaeology
ISSN: 1363-5387
Internet Archaeology has been publishing on the spider web since 1996 together with is the premier e-journal for archaeology. Internet Archaeology is an open access, independent, not-for-profit journal. It publishes character academic content together with explores the potential of electronic publication through the inclusion of video, audio, searchable information sets, full-colour images, visualisations, animations together with interactive mapping. Internet Archaeology is international inwards scope, a truthful magazine without borders, together with all content is peer-reviewed. Internet Archaeology is hosted past times the Department of Archaeology at the University of York together with digitally archived past times the Archaeology Data Service.
Issue 52 (2019)
H5N1 recent compositional report of Egyptian cobalt-blue drinking glass from museum collections inwards Nippon (18th Dynasty) together with from the site of Dahshur (18th together with 19th-20th Dynasties) concluded that a novel origin of cobalt was exploited for the afterwards Dahshur glass, thereby suggesting that drinking glass production continued into the Ramesside menses (Abe et al. 2012). It is shown inwards the electrical flow article that around of this 18th Dynasty drinking glass together with the bulk of the 19th-20th Dynasty drinking glass had been recycled, non entirely supporting the full general consensus that drinking glass production almost disappeared past times 1250 BC, but that the cobalt origin did non necessarily change. It is farther proposed, however, that the to a greater extent than oftentimes than non accepted cobalt origin for Egyptian drinking glass was non the alum deposits of Egypt's Western Desert, but derived from cobaltiferous siliceous ores, mayhap from fundamental Iran.
Re-analysis of the compositions of cobalt-blue drinking glass frit constitute at Amarna, too every bit Egyptian together with Mesopotamian glass, suggests that the cobalt colourant was a by-product of Ag extraction from these ores together with tin sack hence last considered every bit a concentrated cobalt drinking glass slag, which travelled inwards the cast of a frit to drinking glass producers who added it to locally derived base of operations spectacles and/or their precursors. Experiments conducted on ore containing cobalt-nickel arsenides amongst native Ag demonstrate that non entirely tin sack Ag last extracted together with that concentrated cobalt drinking glass tin sack last produced but past times adding a flux, but that around components of the ore sectionalisation preferentially into the Ag or the drinking glass slag, thereby weakening their associations amongst the other components inwards archaeological glass. Treating the cobalt-blue colourant every bit a slag composed of the gangue of a smelting arrangement provides an explanation for the unique elevated levels of alumina together with lower levels of potash constitute inwards cobalt-blue glasses, too every bit providing an explanation for the cessation of cobalt exploitation at the destination of the Late Bronze Age. It is suggested that the exhaustion of native Ag together with siliceous Ag ore deposits during the Bronze Age, amongst argentiferous atomic number 82 ores becoming the master copy origin of silver, depleted the sum of cobalt available, thereby reducing the sum of drinking glass produced which, inwards turn, led to increases inwards recycling during the New Kingdom period.
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