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Water 2015, 7(7), 3206-3224; doi:10.3390/w7073206

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

1
INGV, Sezione di Palermo, via Ugo La Malfa 153, Palermo 90146, Italy
2
CNR-IGAG, via Eudossiana 18, Roma 00184, Italy
*
Author to whom correspondence should be addressed.
Academic Editors: María del Pino Palacios Díaz and María del Carmen Cabrera Santana
Received: 17 April 2015 / Revised: 12 June 2015 / Accepted: 16 June 2015 / Published: 25 June 2015
(This article belongs to the Special Issue Study, Development and Management of Water in Volcanic Areas)
View Full-Text   |   Download PDF [8879 KB, uploaded 25 June 2015]   |  

Abstract

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. View Full-Text
Keywords: hydrogeology; hydrothermal aquifer; permeability; physico-chemical parameters; Vulcano Island hydrogeology; hydrothermal aquifer; permeability; physico-chemical parameters; Vulcano Island
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Madonia, P.; Capasso, G.; Favara, R.; Francofonte, S.; Tommasi, P. Spatial Distribution of Field Physico-Chemical Parameters in the Vulcano Island (Italy) Coastal Aquifer: Volcanological and Hydrogeological Implications. Water 2015, 7, 3206-3224.

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