期刊
JOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS
卷 43, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jasrep.2022.103433
关键词
Smartphone; REE; pED-XRF; Imaging; CIELAB; Mortars; Islamic period
类别
资金
- Spanish Ministry of Science and Innovation [BEAGAL18/00110]
- Ministry of Universities [BEAGAL18/00110]
- Ministry of Education, Culture and Sport of the Valencian Government [PROMETEO 2019-056]
This study analyzed the chemical, mineralogical and colorimetric characteristics of ancient mortars from Silla Islamic Tower and Fuengirola Castle. By using techniques such as X-ray diffraction and infrared spectroscopy, the mineralogical characteristics were determined. The concentrations of major and trace elements were obtained through portable X-ray fluorescence spectroscopy and inductively coupled plasma mass spectrometry. Multivariate statistics were applied to analyze the data and classify the undated samples. Smartphone photo processing and visible spectrophotometry were used to evaluate the color features of the samples.
The present work shows the results of the chemical, mineralogical and colorimetric characterisation of the ancient mortars from Silla Islamic Tower (Valencia, Spain) and Fuengirola Castle (Malaga, Spain). The samples were characterised from the mineralogical point of view by X-ray diffractometry and mid-infrared attenuated total reflection spectroscopy, while portable energy dispersive X-ray fluorescence spectroscopy and inductively coupled plasma mass spectrometry were employed to obtain the concentrations of major and trace elements, including rare earth elements. Data analysis through multivariate statistics was used to evaluate features to discriminate among the mortars from the different construction phases and to classify undated samples. Finally, colour features of powdered and intact samples were characterised by smartphone photo processing and with a Vis-spectrophotometer as reference technique to evaluate the effectiveness of smartphones for archaeometric studies of historic mortars. The analytical results permitted the classification of most undated samples from Silla and evidenced the presence of peculiar chemical characteristics in some samples from Fuengirola. Imaging data for powdered samples showed a good potential as a reliable, cheap and non-destructive fast method to characterise mortars and carry out the study of construction phases in historical complexes.
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