Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological Implications

Vulcano, the southernmost of the Aeolian island arc (Italy), is characterized by a shallow coastal aquifer resulting from the mixing of seawater, meteoric recharge and volcanogenic fluids. The aquifer has been intensively studied during the last decades, but a comprehensive hydrogeological model has...

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Main Authors: Paolo Madonia, Giorgio Capasso, Rocco Favara, Salvatore Francofonte, Paolo Tommasi
Format: Article
Language:English
Published: MDPI AG 2015-06-01
Series:Water
Subjects:
Online Access:http://www.mdpi.com/2073-4441/7/7/3206
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author Paolo Madonia
Giorgio Capasso
Rocco Favara
Salvatore Francofonte
Paolo Tommasi
author_facet Paolo Madonia
Giorgio Capasso
Rocco Favara
Salvatore Francofonte
Paolo Tommasi
author_sort Paolo Madonia
collection DOAJ
description Vulcano, the southernmost of the Aeolian island arc (Italy), is characterized by a shallow coastal aquifer resulting from the mixing of seawater, meteoric recharge and volcanogenic fluids. The aquifer has been intensively studied during the last decades, but a comprehensive hydrogeological model has never been developed due to the lack of direct information about the litho-stratigraphic columns of the wells and the depth of water bearing levels. We present and discuss here the time and spatial analysis of water table elevation, temperature and electric conductivity data, acquired during the last 20 years in 33 wells located at Vulcano Island, with the aim of developing a groundwater circulation scheme able to fit the field observations. We retrieved a circulation scheme characterized by an intricate geometry of flow paths driven by horizontal and vertical permeability variations, accounting for the strong variability of geochemical data evidenced in this area by the related scientific literature. Extending these results to a general context, particular care must be taken in approaching the study of aquifers in volcanic islands, because a strong, small spatial scale variability of the hydrogeochemical parameters is expected, and a reliable knowledge of the local conditions is required for developing successful groundwater circulation schemes.
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spelling doaj.art-4bbe710e95cd40cab46f28834e8fd5b02022-12-22T03:50:24ZengMDPI AGWater2073-44412015-06-01773206322410.3390/w7073206w7073206Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological ImplicationsPaolo Madonia0Giorgio Capasso1Rocco Favara2Salvatore Francofonte3Paolo Tommasi4INGV, Sezione di Palermo, via Ugo La Malfa 153, Palermo 90146, ItalyINGV, Sezione di Palermo, via Ugo La Malfa 153, Palermo 90146, ItalyINGV, Sezione di Palermo, via Ugo La Malfa 153, Palermo 90146, ItalyINGV, Sezione di Palermo, via Ugo La Malfa 153, Palermo 90146, ItalyCNR-IGAG, via Eudossiana 18, Roma 00184, ItalyVulcano, the southernmost of the Aeolian island arc (Italy), is characterized by a shallow coastal aquifer resulting from the mixing of seawater, meteoric recharge and volcanogenic fluids. The aquifer has been intensively studied during the last decades, but a comprehensive hydrogeological model has never been developed due to the lack of direct information about the litho-stratigraphic columns of the wells and the depth of water bearing levels. We present and discuss here the time and spatial analysis of water table elevation, temperature and electric conductivity data, acquired during the last 20 years in 33 wells located at Vulcano Island, with the aim of developing a groundwater circulation scheme able to fit the field observations. We retrieved a circulation scheme characterized by an intricate geometry of flow paths driven by horizontal and vertical permeability variations, accounting for the strong variability of geochemical data evidenced in this area by the related scientific literature. Extending these results to a general context, particular care must be taken in approaching the study of aquifers in volcanic islands, because a strong, small spatial scale variability of the hydrogeochemical parameters is expected, and a reliable knowledge of the local conditions is required for developing successful groundwater circulation schemes.http://www.mdpi.com/2073-4441/7/7/3206hydrogeologyhydrothermal aquiferpermeabilityphysico-chemical parametersVulcano Island
spellingShingle Paolo Madonia
Giorgio Capasso
Rocco Favara
Salvatore Francofonte
Paolo Tommasi
Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological Implications
Water
hydrogeology
hydrothermal aquifer
permeability
physico-chemical parameters
Vulcano Island
title Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological Implications
title_full Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological Implications
title_fullStr Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological Implications
title_full_unstemmed Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological Implications
title_short Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological Implications
title_sort spatial distribution of field physico chemical parameters in the vulcano island italy coastal aquifer volcanological and hydrogeological implications
topic hydrogeology
hydrothermal aquifer
permeability
physico-chemical parameters
Vulcano Island
url http://www.mdpi.com/2073-4441/7/7/3206
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