Biological degradation analysis on archaeological area of Castiglione di Paludi (Cs)

To preserve the cultural collective, often the movable and immovable heritage requiring intervention in preservation and protection. A valuable diagnostic plan, help to minimize the intervention on the work itself. This paper repeats a complete diagnostic plan, realized on an immovable heritage: the archaeological area of Castiglione di Paludi (CS). The place is on the top of an hill, 8 km from the Ionian Sea, and between two rivers: Sant’Elia and San Martino. The archaeological area is delimited by majestic wall, made of rectangular square sandstone’s blocks overlapping without beton. The place has been studied starting from the environment, continuing with a anamnesis, with a photographic documentation, also using historical pictures. The sampling has been made on the patina covering the sandstone blocks. Since the first macroscopic samples, it was established the widespread presence of biological degradation. The SEM’s analysis, the optical microscope’s analysis and the stereomicroscope’s analysis allowed to classify the main microbial communities at the archaeological area.