Analisi idrogeologica dell'area carsica dei Monti Alburni (Salerno, Campania)

Pastore, Claudio (2016) Analisi idrogeologica dell'area carsica dei Monti Alburni (Salerno, Campania). [Laurea magistrale], Università di Bologna, Corso di Studio in Geologia e territorio [LM-DM270]
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The Alburni Massif is the most important karstic area in southern Italy and It contains about 250 caves. Most of these caves are located on the plateau, between 1500 m a.s.l. and 700 m a.s.l., and only a few reach the underground streams that feed the springs and the deep aquifer. The main springs are Grotta di Pertosa-Auletta (CP1) and Auso spring (CP31), both located at 280 m a.s.l., the first on the south-eastern margin whereas the second on south-west margin, and the springs present in Castelcivita area, the Castelcivita-Ausino system (CP2) and Mulino di Castelcivita spring (CP865), located at 60 m a.s.l.. Some other secondary springs are present too. We have monitored Pertosa-Auletta’s spring with a multiparameter logger. This logger has registered data from November 2014 to December 2015 regarding water level, electric conductivity and temperature. The hydrodynamic monitoring has been supported by a sampling campaign in order to obtain chemical water analyses. The work was done from August 2014 to December 2015, not only at Pertosa but also at all the other main springs, and in some caves. It was possible to clarify the behavior of Pertosa-Auletta’s spring, almost exclusively fed by full charge conduits, only marginally affected by seasonal rains. Pertosa-Auletta showed a characteristic Mg/Ca ratio and Mg2+ enrichment, as demonstrated by its saturation index that always showed a dolomite saturation. All other spring have characteristic waters from a chemical point of view. In particular, it highlights the great balance between the components dissolved in the waters of Mulino’ spring opposed to the variability of the nearby Castelcivita-Ausino spring. Regarding the Auso spring the variable behavior in terms of discharge and chemistry is confirmed, greatly influenced by rainfall and, during drought periods, by full charge conduits. Rare element concentrations were also analyzed and allowed to characterize further the different waters. Based on all these data an updated hydrogeological map of the Alburni massif has been drawn, that defines in greater detail the hydrogeological complexes on the basis of lithologies, and therefore of their chemical characteristics.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Pastore, Claudio
Relatore della tesi
Correlatore della tesi
Corso di studio
Curriculum C: Risorse sotterranee fluide
Ordinamento Cds
Parole chiave
Alburni Massif Hydrogeology Caves
Data di discussione della Tesi
21 Marzo 2016

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