Handheld laser-induced breakdown spectroscopy, portable energy dispersive X-ray fluorescence spectroscopy and Graph Clustering applied to the identification and inner stratigraphy of archaeological metallic artifacts
Giorgio Saverio Senesi, Sara Mattiello, Vincenzo Palleschi, Bruno Cocciaro, Girolamo Fiorentino, Olga De Pascale
Abstract:
Two advanced analytical techniques, i.e., non-destructive portable Energy Dispersive X-Ray Fluorescence (pED-XRF) and micro-destructive handheld laser-induced breakdown spectroscopy (hLIBS) supported by a Graph Clustering method have been applied to identify the elemental composition and inner stratigraphy of five copper and two iron alloy artifacts originated from various ancient graves in the area of Minervino Murge (Barletta, Andria, Trani - BAT), Apulia, Italy. The main elements detected by both techniques were Cu, Sn and Pb in copper alloys and Fe with minor amounts of Cu and Pb in iron ones, together with Al, Ca, Si, Mg and K feasibly originated from soil contamination, and the trace elements Sb and Zn. The pED-XRF spectra were distributed in three distinct clusters, whereas LIBS spectra were classified in four clusters.
These instruments have proved to be able to provide reproducible quantitative data in agreement with literature data, thus representing powerful means in outdoor archaeology and archaeometry campaigns.
Download:
IMEKO-MetroArchaeo-2023-093.pdf
DOI:
10.21014/tc4-ARC-2023.093
Event details
IMEKO TC:
TC4
Event name:
TC4 MetroArchaeo 2023
Title:

IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage

Place:
Rome, ITALY
Time:
19 October 2023 - 21 October 2023
 Back