Regional Hydrogeochemical Evolution of Groundwater in the Ring of Cenotes, Yucatán (Mexico): An Inverse Modelling Approach
| Autor: | Jorge Euán-Ávila, Roger Pacheco-Castro, Cesar Canul-Macario, Rosela Pérez-Ceballos, Julia Pacheco-Ávila, Martín Merino-Ibarra |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Gypsum
lcsh:Hydraulic engineering 010504 meteorology & atmospheric sciences Sinkhole Geography Planning and Development Dolomite rainfall 0207 environmental engineering Geochemistry hydrogeochemistry dissolution 02 engineering and technology Aquatic Science engineering.material 01 natural sciences Biochemistry chemistry.chemical_compound lcsh:Water supply for domestic and industrial purposes Impact crater lcsh:TC1-978 Precipitation 020701 environmental engineering 0105 earth and related environmental sciences Water Science and Technology Calcite geography lcsh:TD201-500 geography.geographical_feature_category PHREEQC inverse modelling sinkholes chemistry Geological survey engineering Groundwater Geology |
| Zdroj: | Water, Vol 13, Iss 614, p 614 (2021) Water Volume 13 Issue 5 |
| ISSN: | 2073-4441 |
| Popis: | The Ring of Cenotes (RC) extends along the edge of the Chicxulub crater, in the limestone platform of the Yucatan Peninsula (YP), where groundwater shows two preferential flow paths toward the coast near Celestun and Dzilam Bravo towns. The objectives of this study were to describe the regional hydrogeochemical evolution of the groundwater in the RC, and its association with the dissolution/precipitation of the minerals present along its pathway to the ocean. These objectives results were obtained by: a) characterizing groundwater hydrogeochemistry b) calculating calcite, dolomite, and gypsum saturation indexes in the study area and c) developing a hydrogeochemical model using PHREEQC (U. S. Geological Survey) inverse modelling approach. The model predictions confirmed that there are two evolution pathways of the groundwater consistent with the preferential flow paths suggested in a previous regionalization of the RC. On the western path, where groundwater flows towards Celestun, marine intrusion influences the hydrogeochemical processes and represents a risk for the freshwater. On the eastern path, where groundwater flows toward Dzilam Bravo, rainfall has an important effect on the hydrogeochemical processes, evidenced by a higher concentration in sulfates during droughts than during rainy periods. Then, monitoring of marine intrusion and phases dissolution in the RC is highly recommended |
| Databáze: | OpenAIRE |
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