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Live and produce: Insula III of the Hellinistic-Roman Quarter

Small organic molecules, lipids, proteins, and DNA fragments can remain stable over centuries. Powerful and sensitive chemical analysis can therefore be used to characterize ancient remains for classical archaeological studies. This bio-ecological dimension of archaeology can contribute knowledge about several aspects of ancient life, including social organization, daily habits, nutrition, and food storage. Faecal remains (i.e. coprolites) are particularly interesting in this regard, with scientists seeking to identify new faecal markers. Here, we report the analysis of faecal samples from modern-day humans and faecal samples from a discharge pit on the site of the ruins of ancient Pompeii. We propose that bile acids and their gut microbiota oxo-metabolites are the most specific steroid markers for detecting faecal inputs. This is due to their extreme chemical stability and their exclusive occurrence in vertebrate faeces, compared to other ubiquitous sterols and steroids.

The Agrigento: insula III Project began in 2016 thanks to an agreement between the Parco Archeologico e Paesaggistico Valle dei Templi di Agrigento and DiSCi - Bologna University; it aims to document an entire sector of the Hellenistic-Roman quarter, in a three-year period. The main goal is to start a systematic study of private housing from the Archaic period to Late Antiquity and, at the same time, provide a critical understanding of the town planning scheme in this part of the town, which still lacks a modern archaeological and topographical documentation. The interpretation of the previous documentation is the starting point, along with new mapping with laser scanning and a systematic campaign of geophysical investigations to obtain a BIM. As the Bologna University tradition teaches, modern technologies can answer precise historical and archaeological questions: what are the primary phases of the town map? Which one is the starting module of each lot and what are the changes in different ages? Is it possible to reconstruct the original architecture of Hellenistic houses? What is the relationship between this quarter and the rest of the town? The integration of traditional investigational techniques with more recent ones is the methodological assumption of the project, in order to solve the analysis of the complex stratigraphy of the setting, which was inhabited for at least a millennium, from the Archaic to the Middle Ages.

il contributo prende in analisi il rapporto tra il popolamento antio della valle del cesano e l'evoluzione della geografia fisica, allo scopo di ricostruire le variazioni del paesaggio legate in particolare alle vicende della città romana di suasa