Hydrogeochemical characterization and evolution of a regional karst aquifer in the Cuatrociénegas area, Mexico
| Autor: | Luis González-Hita, Manuel Martínez-Morales, Antonio Cardona, Gerardo Ortiz-Flores, Carlos Gutierrez-Ojeda |
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| Rok vydání: | 2018 |
| Předmět: |
Gypsum
Groundwater flow 0208 environmental biotechnology Geochemistry Soil Science Aquifer 02 engineering and technology 010501 environmental sciences engineering.material 01 natural sciences chemistry.chemical_compound Environmental Chemistry 0105 earth and related environmental sciences Earth-Surface Processes Water Science and Technology Calcite Global and Planetary Change geography geography.geographical_feature_category Geology Water extraction Groundwater recharge Karst Pollution 020801 environmental engineering chemistry engineering Environmental science Groundwater |
| Zdroj: | Environmental Earth Sciences. 77 |
| ISSN: | 1866-6299 1866-6280 |
| DOI: | 10.1007/s12665-018-7953-x |
| Popis: | The Cuatrocienegas area is useful for the investigation of the effect of groundwater extraction in the Chihuahuan freshwater xeric ecoregion. It has been investigated at this time using a selection of geochemical indicators (major, minor and trace elements) and δ34S data, to characterize the origin of groundwater, the main geochemical processes and the mineral/groundwater interactions controlling the baseline geochemistry. The area is composed of limestones of Mesozoic age, with a composite thickness of about 500 m, overlaid by basin fill (poorly consolidated young sediments). Substantial water extraction and modification of natural discharges from the area along the last century have produced a detrimental impact on ecosystem structure and function. Water–rock interactions, mixing and evaporative processes dominate the baseline groundwater quality. Natural recharge is HCO3–Ca type in equilibrium with calcite, low salinity (TDS |
| Databáze: | OpenAIRE |
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