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Article

Hydrogeological and Geochemical Characteristics of the Coastal Aquifer of Stromboli Volcanic Island (Italy)

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Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma 2, via di Vigna Murata 605, 00143 Roma, Italy
2
Dipartimento di Biologia, Ecologia e Scienze della Terra, Università della Calabria, Via P. Bucci, Cubo 15B, 87036 Arcavacata di Rende, Italy
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Dipartimento di Science della Terra e del Mare, Università degli Studi di Palermo, via Archirafi 36, 90123 Palermo, Italy
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Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma 1, via di Vigna Murata 605, 00143 Roma, Italy
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Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, via Ugo La Malfa 153, 90146 Palermo, Italy
*
Author to whom correspondence should be addressed.
Academic Editor: Frédéric Huneau
Water 2021, 13(4), 417; https://doi.org/10.3390/w13040417
Received: 30 December 2020 / Revised: 29 January 2021 / Accepted: 1 February 2021 / Published: 5 February 2021
(This article belongs to the Special Issue Geochemistry of Groundwater)
Although groundwater is a strategic source in volcanic islands, most hydrogeochemical research on this topic has been focused on volcanic activity monitoring, overlooking general hydrogeological aspects. The same applies to one of the most studied volcanoes in the world, Stromboli Island (Italy). Here, we provide a hydrogeological scheme of its coastal aquifer, retrieving inferences about its potential use as a water supply source and for optimizing monitoring protocols for volcanic surveillance. Starting from the hydrogeochemical literature background, we analyzed new data, acquired both for volcano monitoring purposes and during specific surveys. Among these, there were saturated hydraulic conductivity measurements of selected rock samples and precise determinations of water table elevations based on GNSS surveys of wells. We identified a ubiquitous thin lens of brackish water floating on seawater and composed of a variable mixing of marine and meteoric components; inlets of hydrothermal fluids to the aquifer are basically gases, mainly CO2. Based on its hydrogeochemical character, the coastal aquifer of Stromboli could be used as a water supply source after desalinization by reverse osmosis, while the wells located far from the seashore are the most interesting for volcano monitoring, because they are less disturbed by the shallow geochemical noise. View Full-Text
Keywords: groundwater; seawater wedge; volcanic surveillance; water quality; water resource exploitation groundwater; seawater wedge; volcanic surveillance; water quality; water resource exploitation
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MDPI and ACS Style

Madonia, P.; Campilongo, G.; Cangemi, M.; Carapezza, M.L.; Inguaggiato, S.; Ranaldi, M.; Vita, F. Hydrogeological and Geochemical Characteristics of the Coastal Aquifer of Stromboli Volcanic Island (Italy). Water 2021, 13, 417. https://doi.org/10.3390/w13040417

AMA Style

Madonia P, Campilongo G, Cangemi M, Carapezza ML, Inguaggiato S, Ranaldi M, Vita F. Hydrogeological and Geochemical Characteristics of the Coastal Aquifer of Stromboli Volcanic Island (Italy). Water. 2021; 13(4):417. https://doi.org/10.3390/w13040417

Chicago/Turabian Style

Madonia, Paolo; Campilongo, Gloria; Cangemi, Marianna; Carapezza, Maria L.; Inguaggiato, Salvatore; Ranaldi, Massimo; Vita, Fabio. 2021. "Hydrogeological and Geochemical Characteristics of the Coastal Aquifer of Stromboli Volcanic Island (Italy)" Water 13, no. 4: 417. https://doi.org/10.3390/w13040417

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