Structural analysis of marble statues, carried out by non-invasive and in situ methods, is crucial to define the state of conservation of the artworks and to identify the deterioration phenomena that can affect them. In this work, we combined in situ non-destructive techniques, ultrasonic tomography (US), ultraviolet-induced visible fluorescence (UV-IF) and X-ray fluorescence (XRF) to study the bass-relief ‘Madonna con Bambino’ (Gorizia, Italy). The US revealed the presence of some metallic pivots, associated with areas of high sound velocity; moreover, a more degraded area has been identified in the lower part of the bass-relief. The acquired UV-IF image confirmed the presence of surface degradation, allowing a preliminary evaluation of the extension of a fracture, from surface to bulk. In addition, the different materials (both original and/or integrations) that compose the studied surface have been identified. The XRF has contributed to define the nature of the inorganic materials applied during undocumented previous restoration works on the surface as filler for lacunae.
Surface and volume non-invasive methods for the structural monitoring of the bass-relief ‘Madonna con Bambino’ (Gorizia, Northern Italy) / M.F. Alberghina, A. Macchia, P. Capizzi, S. Schiavone, S.A. Ruffolo, V. Comite, M. Barberio, M.F. La Russa. - In: NATURAL PRODUCT RESEARCH. - ISSN 1478-6419. - 33:7(2019 Apr), pp. 1034-1039.
|Titolo:||Surface and volume non-invasive methods for the structural monitoring of the bass-relief ‘Madonna con Bambino’ (Gorizia, Northern Italy)|
|Parole Chiave:||deterioration phenomena; marble; Non-invasive methods; ultrasonic tomography; UV-IF; Analytical Chemistry; Biochemistry; Plant Science; Organic Chemistry|
|Settore Scientifico Disciplinare:||Settore GEO/09 - Georisorse Miner.Appl.Mineral.-Petrogr.per l'amb.e i Beni Cul|
Settore CHIM/01 - Chimica Analitica
Settore CHIM/12 - Chimica dell'Ambiente e dei Beni Culturali
|Data di pubblicazione:||apr-2019|
|Data ahead of print / Data di stampa:||23-nov-2016|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1080/14786419.2016.1258555|
|Appare nelle tipologie:||01 - Articolo su periodico|