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La villa romana di Contrada Malvaccaro a Potenza. Nuove considerazioni architettoniche e cronologiche alla luce di una revisione della più recente documentazione di scavo (2013-2014)
No full textExcavated several times during the 1970s, in 2005–2006, and most recently in 2013–2014, the villa rustica of Malvaccaro
is the only significant archaeological evidence preserved to the present day within the municipal territory of
Potenza (Basilicata, Italy). Despite its relevance for understanding the human settlement in the suburbium of Potentia
and, in a broad sense, the inner part of Lucania during the Imperial Age, the knowledge of this rural building is still
widely incomplete. The existing archaeological literature on the subject, in fact, comprises only brief summary reports,
which moreover fail to account for the results from the most recent researches at the site (2013–2014), still completely
unpublished. This paper aims to provide as comprehensive and accurate an overview as possible of the villa’s building
and attending phases, through a critical review of all available archaeological documentation preserved in the archives
of the SABAP- Bas. Particular attention is devoted to the planimetric, structural, and stratigraphic aspects of the villa,
and a new and more rigorous graphic and photographic documentation is presented. An attempt is also made in order
to re-contextualize the material data within its historical, topographical, and socio-cultural context
GEOCHEMISTRY OF PALEOFLUIDS IN MINERALIZATION ALONG SEISMOGENIC FAULTS IN THE IRPINIA AREA (SOUTHERN ITALY)
Get PDFThe present PhD Thesis Dissertation includes the results of a integrated and multidisciplinary study of fault-related calcite veins from the Contursi Hydrothermal basin (Irpinia area, southern Italy). The whole Contursi hydrothermal activity takes place within a seismically active portion of the southern Apennines of Italy, where destructive earthquakes unfortunately have occurred in recent times. The Contursi village lies close (ca. 1 – 5 km) to the epicentral area of the MW = 6.9, 1980 Irpinia earthquake, and the local fault system is well-exposed along the numerous fault scarps dissecting Mesozoic shallow-water carbonates pertaining to the Apennine Platform. The Contursi hydrothermal activity is characterized by the outgassing of deep sourced CO2 coupled with mantle-derived volatiles such as He (Buttitta et al., 2023). In order to gain news insight into the modalities of crustal-scale fluid circulation along active extensional fault systems, in this work I has been investigated the paleofluids that precipitated calcite minerals within fault-related veins of the aforementioned Contursi Hydrothermal Basin. Specifically, tackle the source of the mineralizing paleofluids and the modalities of fault-related fluid circulation by integrating the results of field structural studies with microstructural, stable isotopes (δ13C and δ18O) and trace elements characterizations of the calcite veins, and both noble gases and δD-H2O of Fluid Inclusion (FI).
The studied fault-related calcite veins crosscut the Mesozoic Apennine Carbonate platform exposed in the Contursi area, which is about 40 km2-wide and characterized by the exposure of high-angle fault forming two main sets roughly striking NNW-SSE and ENE-WSW, respectively. There, in close proximity to the main slip surfaces, both comb and slip-parallel calcite veins (labelled as C and SP, respectively) were sampled. In accordance with previous works, both C and SP-veins are interpreted as co-seismic or early post-seismic features, whose formation as brittle extensional fractures occurred during multiple seismic ruptures. Most of the sampled fault-related calcite veins include blocky calcite crystals, whose precipitation from the fault-controlled paleofluids, likely post-dated the occurrence of the aforementioned brittle fracturing. Only two samples show a fibrous texture of the calcite crystals, which are interpreted as syn-kinematics, and formed during small increments of shear-induce dilation and mineral precipitation. Due to their variable sized and inner texture, incremental crack and seal processes are documented for some studied calcite veins samples.
Most of calcite veins samples show δ13C and δ18O values similar to those that characterize the Mesozoic marine carbonate field (Apennine Carbonate platform). Such an isotopic signature is consistent with mineral precipitation form paleofluids in an isotopic equilibrium with the encompassing carbonate host rocks. This interpretation is supported by the calculated δ18Oparentalfluids values, δD values measured in Fluid Inclusion (FI) and trace and REE content, which all point out towards the long residence time of the mineralizing fluids within the faulted carbonate host rocks. In addition, since the homogenization temperatures (between 100 °C and 130°C) obtained by FIs analysis are similar to the maximum burial temperatures experienced by the Apennine Carbonate Platform host rock (100°C – 120°C), assuming a geothermal gradient of ~30 °C/km, and taking known values of groundwater temperature into account, the geochemical data are interpreted as due calcite precipitation within the fault-related veins from paleofluids that localized at depths of ca. 3 ~ 4 km, and interacted with the Mesozoic carbonates. Differently, some calcite veins are characterized by δ13C values similar to those reported above, but by a pronounced depletion in δ18O which, together with the high homogenization temperature assessed for the FIs, are consistent with the paleofluids derived from a deep reservoir from depths of ca. 8 ~ 10 km. Accordingly, similar to the conceptual model invoked for crustal-scale fault-related fluid flow in the High Agri Valley of southern Italy, results point out to an ascendance of deep fluids towards the Earth’s surface that likely occurred thanks to the temporary rupture of the tectonic mélange forming the sole thrust of the southern Apennine fold-and-thrust belt, and the main seal of overpressurized fluids entrapped within the Apulian carbonates.
Regarding to the results of noble gases analyses performed on the FIs trapped within the calcite veins, most of the investigated samples shows R/Ra values comprised between 0.53 and 1.38 Ra, which is consistent with a prevalent crustal component added to mantle one (up to 20%), and also with a negligible meteoric component. The variability of He isotopic signature in the FIs, that is not consistent with narrower range of He ratios for the current outgassing, can be due to early trapping processes (probably earthquakes occurred in the past). Based on co-seismic dilatancy model, an “early trapping” hypothesis for He isotopic signal, the following model of fault-related fluid circulation in the Contursi Hydrothermal basin is here proposed: the co-seismic dilatancy formed transient of high-permeability pathways through the upper crust, allowing the ascendence of likely overpressured fluids from rock volumes underneath the impermeable tectonic mélange made up of Apulian carbonates. During ascendence towards the Earth’s surface, these overpressured fluids characterized by crustal and mantle derived He (up to 20%), reached shallower crustal volumes (1-5 km), and were either in thermal and isotopic equilibrium or in disequilibrium with the Apennine carbonates generating the two distinct groups of calcite veins and associated FIs. For the fluids in thermal and isotopic equilibrium with the Apennine carbonate host rock, the mixing with the meteoric and/or shallow derived fluid cannot be excluded, as demonstrated through noble gas analysis (i. e. 40Ar/36Ar and relationship with R/Ra values) of some of the study samples. The high-permeability pathways permitting the rapid ascendance of deeper fluids towards shallow crustal conditions is still active in the Irpinia area, as suggested by soil gas measurements indicating a current outgassing of mantle-derived fluids. However, regarding the mantle component measured in the study sample, two possible scenarios are envisioned. First, the mantle-derived fluids derive from outgassing of magmatic intrusion at depth. Second, a through-going structural discontinuity that crosscut the whole crust down to the mantle channeled the deep fluids a depth.
In conclusion, the results of this study showed that the Contursi hydrothermal basin forms a great natural laboratory to gaining a new knowledge on modalities of crustal-scale fluid circulation associated with crustal deformation and earthquake faulting. Such investigations are fundamental to understanding the role of deep fluids in crustal deformation over time, and in the processes of earthquakes nucleation and rupture propagation. Moreover, this study provides hints upon long-time multidisciplinary integrated monitoring approach in tectonically active continental regions, so that the new insights can be helpful to improve earthquake forecast
Determining the Location of the National Repository of Italian Radioactive Waste: A Multi-Risk Analysis Approach
Get PDFFollowing the 1987 referendums, the Italian government stopped its nuclear energy production. Radioactive waste produced by existing nuclear facilities and the very-low- and low-level radioactive waste due to other activities (e.g., healthcare) require the construction of a National Repository. To this end, the National Map of Suitable Areas (CNAI), through which the optimal site to host the National Repository would be identified, was published on 23 December 2023. Over the years, the possible location of the National Repository has been repeatedly contested by the citizens of the territories concerned. However, the need to identify a site and build the National Repository is unavoidable. This study proposes an approach based on multi-criteria analysis. The approach represents an alternative model useful for enriching the public debate with additional information and criteria and is also consistent with the local needs of the communities involved. The proposed approach compares the sites proposed in the CNAI by analyzing their main short- and long-term risks, namely their seismic, transport-related and socio-economic risks. The obtained results show a possible different priority order of the CNAI sites. They highlight the possibility of identifying the optimal site mainly via using site safety criteria assessed throughout the entire service life of the infrastructures to be built and also consider the possible short-term economic advantages deriving from the construction of the National Repository
On the Dirichlet Problem for the System of Thermoelasticity with Microtemperatures
No full textThis paper concerns the Dirichlet problem associated with the linear equilibrium theory of thermoelasticity with microtemperatures. Using an indirect boundary integral method, we express the solution of the boundary problem under study in terms of a single-layer thermoelastic potential. The representation obtained differs from that found in the literature, which is expressed by a double-layer thermoelastic potential. Our approach is based on the theory of reducible operators and the theory of differential forms
Scontro, apertura, (auto)critica. Comunicare l’etnografia dell’Islam in Italia meridionale
No full textQuando i sensi d(n)ella città curano.
No full textLe periferie si assomigliano tutte per questa atmosfera di abbandono, per le lamentele agite dai suoi abitanti. Se invece vai alla ricerca della bellezza, ogni volta emergeranno aspetti originali, caratteristici di quel luogo, unici. È un lavoro di ricerca, comporta quindi un impegno, una immersione nei sensi. Per farlo si può iniziare a esplorare un luogo togliendo la vista perché le percezioni siano amplificate e usate in modo mirato
“Definizione di un modello SSD per l’ottimizzazione e gestione sostenibile delle Zone Economiche Speciali (ECO-ZES)”
No full textIl progetto di ricerca "Eco ZES" nasce con l’obiettivo di sviluppare un Sistema di Supporto Decisionale (DSS) innovativo, mirato a promuovere interventi ecosostenibili nelle aree industriali. L’idea nasce nel contesto della Zona Economica Speciale (ZES) Interregionale Jonica Puglia-Basilicata, istituita per favorire lo sviluppo economico del Mezzogiorno tramite agevolazioni fiscali e semplificazioni burocratiche. Tuttavia, l’iniziativa "Eco ZES" punta a integrare i benefici economici delle ZES tradizionali con modelli di sostenibilità ambientale, promuovendo energie rinnovabili, economia circolare e infrastrutture verdi.
La ricerca ha adottato un approccio multidisciplinare, basato su tecniche avanzate di modellizzazione e simulazione, per analizzare scenari decisionali complessi e valutare gli impatti economici, sociali e ambientali a lungo termine. Il DSS sviluppato è stato testato nelle 15 aree ZES della Basilicata, identificando soluzioni innovative come l’efficienza energetica, il trattamento avanzato delle acque reflue, la riduzione dei rifiuti e la promozione della mobilità sostenibile. Il modello decisionale impiega metodi multicriterio (MCDA) per ponderare i criteri di sostenibilità e confrontare scenari alternativi.
I risultati confermano la validità del DSS, che si distingue per la flessibilità di adattarsi a diversi contesti geografici e settoriali, fornendo raccomandazioni trasparenti e orientate alla sostenibilità. L’integrazione di principi di economia circolare e tecnologie emergenti, come intelligenza artificiale e big data, rappresenta una prospettiva futura per migliorare ulteriormente l’efficacia del sistema.
La ricerca contribuisce significativamente alla promozione di politiche industriali ecosostenibili, offrendo uno strumento per bilanciare sviluppo economico e tutela ambientale, incoraggiando investimenti consapevoli e responsabili nelle aree produttive del Mezzogiorno e oltre.The research project "Eco ZES" aims to develop an innovative Decision Support System (DSS) designed to promote eco-sustainable interventions in industrial areas. The initiative stems from the context of the Interregional Special Economic Zone (ZES) Jonica Puglia-Basilicata, established to foster the economic development of Southern Italy through tax incentives and bureaucratic simplifications. However, the "Eco ZES" initiative seeks to integrate the economic benefits of traditional ZES with models of environmental sustainability, promoting renewable energy, circular economy practices, and green infrastructures.
The research adopted a multidisciplinary approach, leveraging advanced modeling and simulation techniques to analyze complex decision-making scenarios and assess the long-term economic, social, and environmental impacts. The developed DSS was tested in 15 ZES areas in Basilicata, identifying innovative solutions such as energy efficiency, advanced wastewater treatment, waste reduction, and the promotion of sustainable mobility. The decision model employs multi-criteria methods (MCDA) to weigh sustainability criteria and compare alternative scenarios.
The results confirm the validity of the DSS, which stands out for its flexibility to adapt to different geographic and sectoral contexts, providing transparent and sustainability-oriented recommendations. The integration of circular economy principles and emerging technologies, such as artificial intelligence and big data, represents a future prospect to further enhance the system's effectiveness.
The research significantly contributes to the promotion of eco-sustainable industrial policies, offering a tool to balance economic development and environmental protection, encouraging conscious and responsible investments in the productive areas of Southern Italy and beyo
Cauchy formula for vector-valued holomorphic functions and the Cauchy-Kovalevskaja theorem
Get PDFWe establish a version of the Cauchy integral formula for holomorphic functions on a polidisc,
with values in a complex Fréchet space . We prove a vector-valued analog to Weierstrass’s theorem on sequences of holomorphic functions converging uniformly on compact subsets of .
We obtain a Cauchy-Kovalevskaja-type theorem, i.e., prove existence of -valued solutions to the Cauchy problem on and on U_0 = U \cap \{ x_n = 0\ }, , where and , and , with open and . The existence of an open set and of a solution to the Cauchy problem requires the structural condition and relies, as well as in the classical case of scalar valued solutions, on the Cauchy integral formula and on Weierstrass’ theorem for -valued holomorphic functions