Influence of precipitation and deep saline groundwater on the hydrological systems of Mediterranean coastal plains: a general overview

Ré, Viviana; Zuppi, Giovanni Maria

doi:10.1080/02626667.2011.597355

Cited by 55 publications

(14 citation statements)

References 82 publications

(106 reference statements)

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“…and high amount of chlorite and fluoride indicates residual brines, probably due to a dissolution of interstitial seawater residue, or connate waters occurrence. This saline water is emerging mixed with infiltrating meteoric waters, and after having leached the upper part of the brines out from the sediments, this process is well referenced around the Mediterranean basin [66][67][68].…”

Section: Evidence Of Brine Waters Occurrencementioning

confidence: 97%

Geochemical and Isotope Characterisation of Thermo-Mineral Springs of Corsica Island: From Geological Complexity to Groundwater Singularity

Dupuy

Garel

Huneau

et al. 2021

Water

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Understanding hydrogeological processes at the origin of thermal and mineral groundwater are necessary to ensure their sustainable management. However, many processes are involved in their genesis and often only one or two processes are investigated at the same time. Here, we propose to use an innovative combination of geochemical, isotopic (34S, 14C, 18O, 2H) and geothermometry tools to identify, for the first time in a multi-composite geological context, all processes at the origin of diversified thermo-mineral waters. 19 springs covering a wide range of temperature and chemical composition emerging on a restricted area of Corsica Island (France) were selected. Geochemical results highlight five geochemical provinces, suggesting a common origin for some of them. Geothermometry tools show the unexpected involvement of a common deep groundwater reservoir within this non-active zone. Water stable isotopes highlight a contrasted altitude in recharge areas supplying lowland springs. This suggests that different flow patterns have to be involved to explain the wide geochemical diversity observed and to allow the design of a very first conceptual groundwater-flow model. This paper demonstrates the efficiency of the combination of the selected tools as tracers of water–rock interaction, independently of flow depth, intrinsic water properties, geological conditions and interaction time disparities.

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Section: Evidence Of Brine Waters Occurrencementioning

confidence: 97%

Geochemical and Isotope Characterisation of Thermo-Mineral Springs of Corsica Island: From Geological Complexity to Groundwater Singularity

Dupuy

Garel

Huneau

et al. 2021

Water

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“…Saline paleo-water uprising into aquifers is a hydrogeological process controlled by the geological and structural setting of the area, and the mechanisms are often not fully understood (Barberio et al 2021;Conti et al 2000;Grobe and Machel 2002;Petitta et al 2011;Re and Zuppi 2011;Schwartz and Muehlenbachs 1979;Yechieli and Sivan 2010). While down-flowing fluids may be of meteoric origin, uprising fluids may connect the lowermost parts of an aquifer with the surface.…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical-geophysical study of saline paleo-water contamination in alluvial aquifers

Pilla

Torrese

2022

Hydrogeol J

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An integrated hydrochemical and geophysical study of the saline paleo-water uprising into the alluvial aquifer of the Oltrepò Pavese plain sector (Po Plain, northern Italy) is presented. This study involved hydrochemical analysis of groundwater, assessment of well logs, and one-, two- and three-dimensional electrical geophysical surveys. The studied area was selected for its characteristic hydrogeological setting. The alluvial aquifer is strongly conditioned by the presence of a buried tectonic discontinuity along which the saline waters are mainly distributed. These waters rise along the discontinuities in the bedrock and flow into the overlying alluvial aquifer. Contamination from saline waters is not spatially and vertically homogeneous within the aquifer. The spatial distribution of Na–Cl waters suggests the existence of plumes of highly mineralized waters that locally reach the aquifer, diffuse and mix with freshwaters. The saline waters show a dilution during upward migration, which is due to mixing with the shallow fresh groundwater. Highly mineralized groundwater is identified even at very shallow depth in correspondence with each plume. On the other hand, there is a lower degree of contamination in those sectors of the aquifer that are further away from the structural discontinuities and this lesser contamination generally only involves the deeper parts of the aquifer.

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“…In arid and semi-arid areas, groundwater serves as a substantial part of the total water resources used for drinking and irrigation purposes (Wang & Cheng, 1999;Llamas & Martinez-Santos, 2005;Re & Zuppi, 2011;Keesari, 2014). In the past few years, an increase of groundwater usage due to expansion in development activities took place because of increased population as well as water scarcity (Omar & Moussa, 2016;Clemens et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Hydrogeological Characteristics of the North Eastern Part of El Farafra Oasis, Western Desert, Egypt

El-Ghamrawy

Ali

Fikry

et al. 2021

Egyptian Journal of Geology

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T HE EGYPTIAN Western Desert is considered as one of the most arid regions in the country. Recently, expanding developmental activities are invading the study area in El Farafra Oasis especially agriculture. The groundwater in the Western Desert represents the main source of water where the increase in groundwater extraction rates could affect the future development plans negatively. Accordingly, this article is concerned with the study of the hydrogeological characteristics of the Nubian Sandstone Aquifer System (NSAS) and the effect of groundwater exploitation on aquifer potentiality. The study includes well inventory, measuring piezometric heads, measuring salinity of groundwater samples as well as conducting and analysing of pumping/ recovery tests on selected wells. Two hydrogeological cross sections were constructed based on the data of new drilled wells. The regional groundwater flow direction in the NSAS is from southwest to northeast. However, local groundwater flow from east to west is evidenced due to extensive groundwater extraction in the west. The analyses of pumping tests were carried out to estimate the hydraulic properties such as the hydraulic conductivity (K), the transmissivity (T) and the storativity (S). The average K is about 7.1 m/d, while the average T is about 2704 m 2 /d. The storativity reached about 0.0002. The potentiality of the NSAS varies from high potential in the middle and the eastern parts, to moderate potential in the western parts. A groundwater development plan is recommended to avoid the deterioration of the NSAS in the coming decades.

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Influence of precipitation and deep saline groundwater on the hydrological systems of Mediterranean coastal plains: a general overview

Cited by 55 publications

References 82 publications

Geochemical and Isotope Characterisation of Thermo-Mineral Springs of Corsica Island: From Geological Complexity to Groundwater Singularity

Geochemical and Isotope Characterisation of Thermo-Mineral Springs of Corsica Island: From Geological Complexity to Groundwater Singularity

Hydrochemical-geophysical study of saline paleo-water contamination in alluvial aquifers

Hydrogeological Characteristics of the North Eastern Part of El Farafra Oasis, Western Desert, Egypt

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