G-Factor, a Suitable Tool for Characterization of Ancient Ceramics: Application to Monitoring Amphorae Phase Transformations in Firing
authors Compana, JM; Cabeza, A; Macias, J; Aranda, MAG; Leon-Reina, L
nationality International
journal ARCHAEOMETRY
author keywords Roman Amphorae; Pliocene Clay; X-Ray Diffraction; X-Ray Fluorescence; Electron Microscopy; Firing Temperature; G-Factor
keywords EXTERNAL STANDARD METHOD; AMORPHOUS CONTENT; RAW-MATERIALS; POTTERY; CLAY; QUANTIFICATION; TEMPERATURE; STONEWARE; PORCELAIN; HYDRATION
abstract The thick Pliocene clay beds located along the mouth of the Guadalhorce River in Malaga were used in the Roman era for amphorae production related to the ever-growing production of garum and salted fish. As a first step in their archaeometric characterization, a series of firing tests on the potential raw material have been carried out. The main aim of this work is to obtain a suitable tool for estimating the firing temperatures of those amphorae, as well as to make a comprehensive evaluation of the potential of an innovative external-standard method for measuring the amorphous content of a pottery sample, the G-factor method. The obtained results emphasize a highly amorphous content, over 50 wt% in some samples, which varies with the firing temperature. This shows the potential of this technique, which allows straightforward fully quantitative mineralogical analysis and a mineralogical comparison even between samples fired at very different temperatures.
publisher WILEY-BLACKWELL
issn 0003-813X
year published 2015
volume 57
beginning page 110
ending page 129
digital object identifier (doi) 10.1111/arcm.12107
web of science category Archaeology; Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Geosciences, Multidisciplinary
subject category Archaeology; Chemistry; Geology
unique article identifier WOS:000357017400007
link http://onlinelibrary.wiley.com/doi/10.1111/arcm.12107/citedby
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