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Title: Analcime crystallization and compositional profiles - Comparing approaches to detect post-depositional alterations in archaeological pottery
Author: Schwedt, Alexander
Mommsen, Hans
Zacharias, Nikolaos
Buxeda i Garrigós, Jaume
Keywords: Arqueometria
Química arqueològica
Ceràmica romana
Archaeological chemistry
Roman pottery
Issue Date: 2006
Publisher: Oxford University, Research Laboratory for Archaeology and the History of Art
Abstract: The approaches of comparative studies and profile measurements, often used in order to detect post-depositional alterations of ceramics, have been applied simultaneously to two sets of Roman pottery, both of which include altered individuals. As analytical techniques, Neutron Activation Analysis and X-Ray Diffraction have been used. Both approaches lead to substantially different results. This shows that they detect different levels of alteration and should complement each other rather than being used exclusively. For the special process of a glassy phase decomposition followed by a crystallization of the Na-zeolite analcime, the results suggest that it changes high-fired calcareous pottery rapidly, and so fundamentally that the results of various archaeometric techniques can be severely disturbed.
Note: Versió postprint del document publicat a: 10.1111/j.1475-4754.2006.00254.x
It is part of: Archaeometry, 2006, vol. 48, num. 2, p. 237-251
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ISSN: 0003-813X
Appears in Collections:Articles publicats en revistes (Història i Arqueologia)

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