Ageophysical study of the Scarsella vault, the high altar of St. John’s Baptistery in Florence, was conducted to determine the internal structural features and thus ensure its proper restoration. The Scarsella’s crossvault is covered with precious mosaics dating back to the Middle Ages. The vault is 10 m long and 5 m wide, varying in thickness 5-2.5 m. To determine the extent of some fractures known to exist on the internal surface and to define the structural features of the vault itself, three different geophysical techniques were applied: electrical resistivity tomography (ERT), seismic transmission tomography, and groundpenetrating radar (GPR). Data reduction involved both 2D processing and inversion of the ERT and GPR sections, 3D inversion of seismic tomography, and 3D rendering of ERT and GPR images. An overall interpretation was obtained by correlating the different results, leading to a more detailed knowledge of the vault’s internal structure.
Integrated geophysical surveys to investigate the scarsella vault of St John’s Baptistery in Florence
SANTARATO, Giovanni;
2002
Abstract
Ageophysical study of the Scarsella vault, the high altar of St. John’s Baptistery in Florence, was conducted to determine the internal structural features and thus ensure its proper restoration. The Scarsella’s crossvault is covered with precious mosaics dating back to the Middle Ages. The vault is 10 m long and 5 m wide, varying in thickness 5-2.5 m. To determine the extent of some fractures known to exist on the internal surface and to define the structural features of the vault itself, three different geophysical techniques were applied: electrical resistivity tomography (ERT), seismic transmission tomography, and groundpenetrating radar (GPR). Data reduction involved both 2D processing and inversion of the ERT and GPR sections, 3D inversion of seismic tomography, and 3D rendering of ERT and GPR images. An overall interpretation was obtained by correlating the different results, leading to a more detailed knowledge of the vault’s internal structure.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
