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Article

The Role of Faults in Groundwater Circulation before and after Seismic Events: Insights from Tracers, Water Isotopes and Geochemistry

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Department of Science and Matter Engineering, Environment and Urban Planning (SIMAU), Marche Polytechnic University, Via Brecce Bianche 12, 60131 Ancona, Italy
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Dipartimento di Fisica e Geologia, Università di Perugia, Via Pascoli s.n.c., 06123 Perugia, Italy
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Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Napoli, Osservatorio Vesuviano (INGV-OV), Via Diocleziano 328, 80124 Naples, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Dongmei Han
Water 2021, 13(11), 1499; https://doi.org/10.3390/w13111499
Received: 28 April 2021 / Revised: 22 May 2021 / Accepted: 25 May 2021 / Published: 27 May 2021
The interaction between fluids and tectonic structures such as fault systems is a much-discussed issue. Many scientific works are aimed at understanding what the role of fault systems in the displacement of deep fluids is, by investigating the interaction between the upper mantle, the lower crustal portion and the upraising of gasses carried by liquids. Many other scientific works try to explore the interaction between the recharge processes, i.e., precipitation, and the fault zones, aiming to recognize the function of the abovementioned structures and their capability to direct groundwater flow towards preferential drainage areas. Understanding the role of faults in the recharge processes of punctual and linear springs, meant as gaining streams, is a key point in hydrogeology, as it is known that faults can act either as flow barriers or as preferential flow paths. In this work an investigation of a fault system located in the Nera River catchment (Italy), based on geo-structural investigations, tracer tests, geochemical and isotopic recharge modelling, allows to identify the role of the normal fault system before and after the 2016–2017 central Italy seismic sequence (Mmax = 6.5). The outcome was achieved by an integrated approach consisting of a structural geology field work, combined with GIS-based analysis, and of a hydrogeological investigation based on artificial tracer tests and geochemical and isotopic analyses. View Full-Text
Keywords: tracer tests; isotope hydrology; faults; carbonate aquifers; earthquakes; Mts. Sibillini; central Italy tracer tests; isotope hydrology; faults; carbonate aquifers; earthquakes; Mts. Sibillini; central Italy
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MDPI and ACS Style

Fronzi, D.; Mirabella, F.; Cardellini, C.; Caliro, S.; Palpacelli, S.; Cambi, C.; Valigi, D.; Tazioli, A. The Role of Faults in Groundwater Circulation before and after Seismic Events: Insights from Tracers, Water Isotopes and Geochemistry. Water 2021, 13, 1499. https://doi.org/10.3390/w13111499

AMA Style

Fronzi D, Mirabella F, Cardellini C, Caliro S, Palpacelli S, Cambi C, Valigi D, Tazioli A. The Role of Faults in Groundwater Circulation before and after Seismic Events: Insights from Tracers, Water Isotopes and Geochemistry. Water. 2021; 13(11):1499. https://doi.org/10.3390/w13111499

Chicago/Turabian Style

Fronzi, Davide, Francesco Mirabella, Carlo Cardellini, Stefano Caliro, Stefano Palpacelli, Costanza Cambi, Daniela Valigi, and Alberto Tazioli. 2021. "The Role of Faults in Groundwater Circulation before and after Seismic Events: Insights from Tracers, Water Isotopes and Geochemistry" Water 13, no. 11: 1499. https://doi.org/10.3390/w13111499

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