On the Surface and Beyond. Degradation Morphologies Affecting Plant Ash-Based Archaeological Glass from Kafir Kala (Samarkand, Uzbekistan)

نویسندگان

چکیده

The study focuses on an assemblage of glass finds from the citadel Kafir Kala, Uzbekistan, located along one major Eurasian branches “Silk Roads” with a consistent occupation between 8th and 12th century CE. Glass fragments for this were selected based marked surface alterations they showed, stratified deposits different thickness colours. Starting preliminary observation under Optical Microscope, clustered into four main groups appearance alterations; Scanning Electron Microscopy investigations stratigraphy alteration products then carried out, to evaluate micro-textural, morphological compositional features. Data analyses allowed identifying preferential patterns development various degradation morphologies, linkable due burial environment alkali leaching action water. Iridescence, opaque weathering (at times associated black stains), blackening identified as recurring morphologies; all but sample made plant ash-based glass, results show no specific correlation composition occurrence or other pattern, often found together. Framed in broad scenario, paper aims set basis approach dedicated morphologies affecting archaeological glasses, topic still lacking systematisation in-depth literature.

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ژورنال

عنوان ژورنال: Minerals

سال: 2021

ISSN: ['2075-163X']

DOI: https://doi.org/10.3390/min11121364