The origin of the saline waters in the Villafáfila lakes (NW Spain). A hydrogeological, hydrochemical, and geophysical approach

Huerta, Pedro; Armenteros, Ildefonso Armenteros; Récio, Clemente; García, Pedro Carrasco; Rueda-Gualdrón, Carolina; Cidón-Trigo, Azahara

doi:10.1016/j.scitotenv.2021.147909

Cited by 6 publications

(3 citation statements)

References 54 publications

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“…Topographic positions and dimensions of the wetlands and shallow lakes control the relationship they have with groundwater flows, evaporation rates, and the amount and types of evaporite salts (Huerta et al, 2021). Regarding the size, studies of several hypersaline shallow lakes have shown that their size is proportional to the size of the endorheic basins associated with them (López Steinmetz & Salvi, 2021).…”

Section: Discussionmentioning

confidence: 99%

“…Topographic positions and dimensions of the wetlands and shallow lakes control the relationship they have with groundwater flows, evaporation rates, and the amount and types of evaporite salts (Huerta et al, 2021) as well as complete water evaporation from the lake results in the precipitation of evaporites of gypsum, halite, and epsomite-hexahydrite types. The water table position below the surface and the strong evaporation favour the precipitation of these salts under the form of layers on the wetland surface (Figure 5).…”

Section: Discussionmentioning

confidence: 99%

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Factors and processes controlling hydrochemistry and evaporitic deposits in hypersaline wetland‐shallow lake systems

Acosta,

Carol,

Borzi

et al. 2023

Hydrological Processes

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Three wetland‐shallow lakes were studied with the aim of analysing the processes and factors that control hydrochemistry and evaporite deposits in them in basins of the Pampean Plain, Argentina. In this sense, water balances and analysis of the water content of the lakes with normalized water difference index were made, and geologic‐geomorphological characteristics and groundwater flows were defined. Groundwater, surface water and evaporite samples were taken, along with sediment samples from wetland‐shallow lakes and surroundings. In situ pH, electrical conductivity and temperature, and laboratory chemical determinations of major ions of the water were measured. x‐ray diffraction (XRD) and scanning electron microscope (SEM)‐energy dispersive spectroscopy (EDS) analyses of evaporite and sediment samples were carried out. The results obtained allow the identification of two different systems. One of them is represented by Leubucó wetland‐lake basin, which is topographically higher and smaller than the other system, with Na‐HCO3 and Na‐Cl/SO4 groundwater inflows, with high concentrations of Ca2+ and Mg2+. In periods of high evaporation, the regional water table drops, and due to its topographic position, the lake dries. These determine the formation of thick layers of halite associated with magnesium salts on surface, and gypsum layers interbedded with clastic sediments. The other system involves de la Sal and Chasilauquen wetland‐lake basins, which have larger extensions. They receive Na‐HCO3 and Na‐Cl/SO4 groundwater inflow, but with low Mg2+ and Ca2+. Their lower topographic position determines that even during deficit periods, the water table intercepts the lakes surface and therefore, lakes have a shallow surface water level almost all the year, which is hypersaline, Na‐Cl type. These systems only have thin evaporite crusts, composed of halite and thenardite at the edges of the lakes, and the formation of Ca‐Mg sulfates is not observed. It is concluded that topographic position, basins size, geology, groundwater inflow and evaporation are the main processes and factors controlling hydrochemistry and evaporitic deposits.

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Section: Discussionmentioning

confidence: 99%

“…Topographic positions and dimensions of the wetlands and shallow lakes control the relationship they have with groundwater flows, evaporation rates, and the amount and types of evaporite salts (Huerta et al, 2021) as well as complete water evaporation from the lake results in the precipitation of evaporites of gypsum, halite, and epsomite-hexahydrite types. The water table position below the surface and the strong evaporation favour the precipitation of these salts under the form of layers on the wetland surface (Figure 5).…”

Section: Discussionmentioning

confidence: 99%

Factors and processes controlling hydrochemistry and evaporitic deposits in hypersaline wetland‐shallow lake systems

Acosta,

Carol,

Borzi

et al. 2023

Hydrological Processes

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“…Sobre el gran sistema acuífero de la cuenca del Duero existen muchos humedales que, si bien no tienen grandes dimensiones, son relevantes en cuanto a su papel medioambiental e interés hidrogeológico (Armenteros et al, 2019;Sanz-Montero et al, 2019;Mediavilla et al, 2020;Huerta et al, 2021). En la región abulense conocida como La Moraña existen una serie de humedales de pequeñas dimensiones, muchos de los cuales se encuentran secos durante la mayor parte del año.…”

Section: Introductionunclassified

Hidrogeología del entorno de las lagunas del Oso (Ávila)

Huerta,

Inthirat,

Carrasco

et al. 2022

Geogaceta

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En las proximidades de El Oso, en la Moraña abulense, existen varios humedales siendo la laguna de El Hoyo el más importante. Las arenas miocenas y cuaternarias constituyen buenos acuíferos con flujos subterráneos que van de Sur a Norte. En las proximidades de El Oso el nivel freático está muy somero y existe una componente vertical ascendente del flujo. Las aguas son dulces y tienen una composición bicarbonata cálcico sódica. La laguna de El Hoyo tiene modificado su régimen natural por aportes de agua de sondeos cercanos. El Hoyo es una laguna de recarga durante el invierno alimentada principalmente por precipitación directa, aunque durante el verano puede recibir aportes de agua subterránea.

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The hydrology of the Jezero crater paleolake: Implications for the climate and limnology of the lake system from hydrological modeling

Horvath,

Andrews-Hanna

2024

Earth and Planetary Science Letters

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The origin of the saline waters in the Villafáfila lakes (NW Spain). A hydrogeological, hydrochemical, and geophysical approach

Cited by 6 publications

References 54 publications

Factors and processes controlling hydrochemistry and evaporitic deposits in hypersaline wetland‐shallow lake systems

Factors and processes controlling hydrochemistry and evaporitic deposits in hypersaline wetland‐shallow lake systems

Hidrogeología del entorno de las lagunas del Oso (Ávila)

The hydrology of the Jezero crater paleolake: Implications for the climate and limnology of the lake system from hydrological modeling

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