Assessment of the Capoterra coastal plain (southern Sardinia, Italy) by means of hydrogeological and geophysical studies

Balia, Roberto; Ardau, F.; Barrocu, Giovanni; Gavaudo, E.; Ranieri, Gaetano

doi:10.1007/s10040-008-0405-z

Cited by 11 publications

(7 citation statements)

References 12 publications

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“…The correlation is good and, while the stratigraphy of the drilling, executed without core recovery, seems rather qualitative, the resistivity column shows several differentiations, that include the bottom of the clay layer (that is the top of the confined aquifer) and the transition to conductive Miocene materials. Drilling was stopped at a depth of 68 m, with a water flow rate of 20 liters/s, and the hydrostatic level rose close to the ground surface (Balia et al, 2008); these conditions confirmed that the deep aquifer is a confined one.…”

Section: Stratigraphic Assessment To Evaluate Water Resourcesmentioning

confidence: 64%

“…In this second example, the problem is to ascertain the possibility of finding fresh groundwater under the Quaternary cover (Balia et al, 2008). The surface geology of the site (a coastal plain situated in a graben area) is characterized by the Paleozoic basement that outcrops on one edge of the plain and deepens very quickly towards the middle of the graben, and Pleistocene-Holocene sediments and alluvium.…”

Section: Stratigraphic Assessment To Evaluate Water Resourcesmentioning

confidence: 99%

“…The whole hydrogeological conditions of the plain have been extensively studied, in the more or less recent past, even with the contribution of geophysical surveys (Balia et al, 2008, and references therein). In the following, the stratigraphic assessment below the Quaternary cover, that is below the already known aquifer system, is recalled.…”

Section: Stratigraphic Assessment To Evaluate Water Resourcesmentioning

confidence: 99%

“…The need for this assessment was that the already known, near-surface aquifers were mostly exhausted or polluted by seawater, mainly due to overexploitation. Thus, two P-wave seismic reflection profiles were acquired and interpreted (Balia et al, 2008, and references therein). The depthconverted sections are shown in figure 5.…”

Section: Stratigraphic Assessment To Evaluate Water Resourcesmentioning

confidence: 99%

See 3 more Smart Citations

Medium to Shallow Depth Stratigraphic Assessment Based on the Application of Geophysical Techniques

Balia¹

2012

Stratigraphic Analysis of Layered Deposits

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Section: Stratigraphic Assessment To Evaluate Water Resourcesmentioning

confidence: 64%

Section: Stratigraphic Assessment To Evaluate Water Resourcesmentioning

confidence: 99%

Section: Stratigraphic Assessment To Evaluate Water Resourcesmentioning

confidence: 99%

Section: Stratigraphic Assessment To Evaluate Water Resourcesmentioning

confidence: 99%

See 2 more Smart Citations

Medium to Shallow Depth Stratigraphic Assessment Based on the Application of Geophysical Techniques

Balia¹

2012

Stratigraphic Analysis of Layered Deposits

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“…After recharge, it can be difficult to ascertain the distribution of water in the subsurface zone. Surface geophysical methods provide a dense spatial coverage and highresolution information about qualitative, and occasionally quantitative, relationships between geophysical parameters and hydrogeological characteristics (Koukadaki et al 2007;Casas et al 2008;Balia et al 2009;Rashid et al 2012;Atwia and Masoud 2013). Further, resistivity methods are well suited to studies of groundwater salinity.…”

Section: Introductionmentioning

confidence: 99%

Evaluación multiparamétrica de un esquema MAR (Managed Aquifer Recharge) en un acuífero costero salinizado (Plana de Castellón, España)

Menéndez¹

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extensión de la pluma de recarga. En concreto, se establece que la pluma de recarga caracterizada como agua dulce (400-600 µS/cm) se extiende 400 m en dirección O-E y 250 m en dirección N-S. Además, las imágenes de ERT definen que una zona de mezcla entre ambas aguas, con CE por debajo de 2500 µS/cm, alcanzó una distancia de 600 m en dirección este. Capítulo Introducción 3 1.1. Presentación La presente investigación desarrolla una idea propuesta en el informe Methodological basis for Water Neutrality Projects. Case study: Colebega Plant (Valencia, Spain) (Morell et al., 2010a) auspiciado por The Coca-Cola Foundation (TCCF), en el contexto de su política de Water Neutrality, que pretende establecer mecanismos de compensación (offset mechanisms) del consumo de agua asociado a las actividades de las instalaciones de la compañía. En el informe mencionado, además de proponer unas bases metodológicas de aplicación general, se propusieron ocho actuaciones, de muy diversa naturaleza, para compensar el consumo de agua de la planta embotelladora COLEBEGA S.A., perteneciente al grupo Coca-Cola European Partners, situada en el término municipal de Quart de Poblet (Valencia, España). De entre las ocho opciones presentadas, se eligió como más apropiada la técnica de recarga artificial para luchar contra la salinización en acuíferos costeros y, a tal fin, TCCF financió durante tres años (2012-2014) el proyecto Facing the seawater intrusion recharging coastal aquifers with regenerated water (Water Recovery Project), liderado por el

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Using electrical resistivity tomography to assess the effectiveness of managed aquifer recharge in a salinized coastal aquifer

García-Menéndez

Ballesteros²,

Renau‐Pruñonosa

et al. 2018

Environ Monit Assess

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Over 40 years, the detrital aquifer of the Plana de Castellón (Spanish Mediterranean coast) has been subjected to seawater intrusion because of long dry periods combined with intensive groundwater exploitation. Against this backdrop, a managed artificial recharge (MAR) scheme was implemented to improve the groundwater quality. The large difference between the electrical conductivity (EC) of the ambient groundwater (brackish water due to marine intrusion) and the recharge water (freshwater) meant that there was a strong contrast between the resistivities of the brackish water saturated zone and the freshwater saturated zone. Electrical resistivity tomography (ERT) can be used for surveying similar settings to evaluate the effectiveness of artificial recharge schemes. By integrating geophysical data with lithological information, EC logs from boreholes, and hydrochemical data, we can interpret electrical resistivity (ER) with groundwater EC values and so identify freshwater saturated zones. Using this approach, ERT images provided a high-resolution spatial characterization and an accurate picture of the shape and extent of the recharge plume of the MAR site. After 5 months of injection, a freshwater plume with an EC of 400-600 μS/cm had formed that extended 400 m in the W-E direction, 250 m in the N-S direction, and to a depth of 40 m below piezometric level. This study also provides correlations between ER values with different lithologies and groundwater EC values that can be used to support other studies.

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Assessment of the Capoterra coastal plain (southern Sardinia, Italy) by means of hydrogeological and geophysical studies

Cited by 11 publications

References 12 publications

Medium to Shallow Depth Stratigraphic Assessment Based on the Application of Geophysical Techniques

Medium to Shallow Depth Stratigraphic Assessment Based on the Application of Geophysical Techniques

Evaluación multiparamétrica de un esquema MAR (Managed Aquifer Recharge) en un acuífero costero salinizado (Plana de Castellón, España)

Using electrical resistivity tomography to assess the effectiveness of managed aquifer recharge in a salinized coastal aquifer

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