Materiali e tecniche della pittura romana in Canton Ticino

• Autores: Giovanni Cavallo, Ilaria Verga
• Localización: Pareti dipinte. Dallo scavo alla valorizzazione: atti del XIV Congresso internazionale dell'Association internationale pour la peinture murale antique (AIPMA), Napoli-Ercolano, 9-13 settembre 2019 / coord. por Antonella Coralini, Paolo Giulierini, Valeria Sampaolo, Francesco Sirano, Vol. 1, 2024 (TOMO I), ISBN 978-88-5491-467-4, págs. 575-586
• Idioma: italiano
• Títulos paralelos:
  • Materials and techniques of Roman painting in the Tessin Canton
• Enlaces
  • Texto Completo Libro
• Resumen

  • Around 1700 fragments of painted plasters were unearthed in 2014 during the excavation works of part of the hypocaust belonging to the Santa Maria in Borgo roman settlement in Mendrisio (Tessin Canton, Switzerland). This nding is very important representing the unique evidence of roman painting in a housing context in the region. These fragments were used to fill up the heated room during the renovations executed in a time span between late 3rd and early 4th centuries A.D. The decorations and the stylistic features (the characteristic red-banded motif on a white background, stylized perspective architectural motifs) indicate they belong to Severan age.The scientific research was carried out combining non-invasive and micro-invasive analytical techniques, thus preserving as far as possible the integrity of the painted surfaces. The preliminary characterization of the pigments was addressed through hand-held X-ray spectrometry (HH-XRF). Some fragments were analysed using a non-invasive set up by means of X-ray diffraction (XRD). The micro-stratigraphic research was performed on a limited number of painted samples combining polarized light microscopy in visible incident light (Vis-PLM) and scanning electron microscopy coupled with energy dispersive spectrometry (SEM/EDX).The following pigments were identified: hematite, goethite, green earth, Egyptian blue, lead white, and charcoal black. In addition, the painting technique was also highlighted.