Karstic aquifer structure from geoelectrical modeling in the Ring of Sinkholes, Mexico

Andrade-Gómez, Luisa; Rebolledo-Vieyra, M.; Andrade, José Luís; López, Paloma Z.; Estrada-Contreras, José

doi:10.1007/s10040-019-02016-w

Cited by 12 publications

(6 citation statements)

References 41 publications

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“…We did not used a vulnerability index; however, the thin soil and porous epikarst features present in the study area, suggest that they are not acting as buffer zone (Martínez-Salvador et al, 2019); thus, they the movement of pollutants can occur fast. The shallow, unconfined aquifer ( 30 m deep) is embedded in a platform of carbonate sedimentary exposed rock (Andrade-G omez et al, 2019), and this dominance of bicarbonate, calcium, sulphate and sodium indicate rock dissolution, a dominant hydrochemical process. However, the measured concentration of dissolved substances can also be influenced by the spatial location and intensity of irrigation.…”

Section: Discussionmentioning

confidence: 99%

“…It is a geological structure largely consisting of a limestone platform with an approximated size of 165,000 km 2 , including the states of Quintana Roo, Yucatan and Campeche, and part of Chiapas (Mexico) in addition to portions of Belize and Guatemala (Graniel-Castro and Gil-Garcia, 2010). It is a porous geological structure of Pleistocene and Tertiary rock; the first 120 m of the geological structure consists of recrystallized calcites of high permeability and argillasceous and coquinoide limestones; deeper layers consists namely of evaporites, dolomites, anhydrites and halite from the Paleocene and Eocene (Andrade-G omez et al, 2019). The permeable geological structure throughout serves as a conduit for the geo-hydraulic processes such as groundwater flow, and aquifer recharge/discharge (Cabrera Sansores et al, 2002).…”

Section: Study Sitesmentioning

confidence: 99%

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A multi-approach assessment of land use effects on groundwater quality in a karstic aquifer

Smith¹,

Ortega-Camacho²,

Acosta‐González³

et al. 2020

Heliyon

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Groundwater represents almost half of the drinking water worldwide and more than one third of water used for irrigation. Agro-industrial activities affect water resources in several manners; one of the most important is leaching of agrochemical residues. This research identifies the major contributors of changes in groundwater quality comparing two contrasting land uses in a karstic area of the Yucatan peninsula as case study. Using a multiple approach, we assess the impact of land use with physicochemical data, multivariate analyses, hydrogeochemistry and nitrate isotopic composition. We confirmed that agricultural land use has a greater impact on groundwater quality, observed in higher concentration of nitrates, ammonium, potassium and electrical conductivity. Seasonality has an influence on phosphates and the chemical composition of the groundwater, increasing the concentration of dissolved substances in the rainy season. There was a clear effect of manure application in the agricultural zone and the nitrate isotopic composition of groundwater points toward recharge in certain areas. We consider that seasonality and land use effects are intertwined and sometimes difficult to separate, likely because of land use intensity and hydrogeochemical process at a local scale. Finally, we observed poor groundwater quality in the agricultural area during the wet season; thus, it is desirable to maintain nonagricultural areas that provide groundwater of appropriate quality.

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Section: Discussionmentioning

confidence: 99%

Section: Study Sitesmentioning

confidence: 99%

A multi-approach assessment of land use effects on groundwater quality in a karstic aquifer

Smith¹,

Ortega-Camacho²,

Acosta‐González³

et al. 2020

Heliyon

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“…Figure 2 (c-h) shows low resistivity, located in the western part of lines 1, 3, and 6 at a depth of 15 m to 40 m. That is interpreted as a layer of limestone saturated with water, and the clay layer is the main karst water channel (conduit) [10,40,41]. This spring is an open sinkhole located on lines 1 and 6.…”

Section: Low Resistivity Zonementioning

confidence: 99%

“…At moderate resistivity with a depth of 15-40 m, some researchers have interpreted it as a layer of limestone that is saturated with water and a layer of clay in the form of a karst main water channel (conduit) [10,40,41] with springs in the form of open sinkholes. However, it is different from lines 2 and 5, which are also indicated as moderate resistivity zones.…”

Section: Medium Resistivity Zonementioning

confidence: 99%

Identification of Karstification Zoning and Aquifer Channels in Karst Basin at Sendang Biru Beach, Malang-Indonesia: A Case Study

Wahid¹,

Sunaryo²,

Susilo³

et al. 2022

IJDNE

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Karst zoning and channel aquifers in the karst basin at Sendang Biru Beach, Tambak Rejo Village have been investigated. Sendang Biru Beach has a cave appearance as a karst morphological feature and is composed of limestone. Seasonal karst water sources come from springs, surface runoff, underground rivers, channels in valleys, basins, and slopes that often experience drought. The purpose of this study is to identify the presence of karst aquifers and karstification zones that are prone to damage or disasters in the karst environment. The method used is a geophysical combination of Electrical Resistivity Tomography (ERT), Induced Polarization (IP), and Self Potential (SP). The results showed that the eastern part's karstification zone was characterized by moderate to high resistivity and a chargeability zone with a moderate to high range. In addition, the existence of karst aquifer channels in the anomalous zone of low resistivity, high chargeability, and negative natural potential. This zone is located in the Qas Formation, with the water flowing from west to east and from west to south. The inundated karst aquifer that spreads in a circular pattern with different depths interspersed by limestone cracks causes a heterogeneous karstification process.

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“…In-situ hydraulic methods, such as pumping tests, can provide knowledge on the degree of confinement of the aquifer and its quantitative parameters (e.g., [24,25]). Non-invasive geophysical methods can also be used to gather information on aquifer geometry and boundaries (e.g., electric and seismic methods, [26,27]), to identify major voids and conduits (e.g., gravimetric and geomagnetical methods, [28]), and to recognize preferential infiltration pathways (e.g., self-potential methods, [29]). In addition, to allow model calibration, a continuous monitoring of at least precipitation and spring discharge is essential [16].…”

Section: Introductionmentioning

confidence: 99%

Nossana Spring (Northern Italy) under Climate Change: Projections of Future Discharge Rates and Water Availability

Citrini

Camera

Beretta

2020

Water

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Nossana represents an important pre-Alpine karst spring for drinking supply, sustaining a water distribution system serving 300,000 people. The goal of this study was to project Nossana discharges and evaluate potential supply limits for four future periods (2021–2040, 2041–2060, 2061–2080, 2081–2100). Bias-corrected Regional Climate Models (RCMs), part of the EURO-CORDEX experiment and forced by three emission scenarios (RCP2.6, RCP4.5, RCP8.5), were evaluated, statistically downscaled, and used as input in a calibrated rainfall-runoff model ensemble. For each emission scenario, the calibrated model ensemble considered three RCMs and ten rainfall-runoff parameterizations. Projected ensemble mean discharges are lower than observations (3%–23%) for all RCPs, though they do not show a clear trend between the four time periods. Days characterized by discharges lower than actual water demand are projected to decrease, except for the RCP8.5 emission scenarios and the period 2081–2100. Conversely, the same consecutive days are expected to increase after 2060 for all emission scenarios. These results reflect the projected precipitation trend, characterized by longer, drier summer periods and wetter autumns in comparison to today’s climate. Also, they indicate a possible need for alternative drinking water resources. The proposed methodology was demonstrated to deliver useful quantitative information for water management in the mid- long-term period.

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Karstic aquifer structure from geoelectrical modeling in the Ring of Sinkholes, Mexico

Cited by 12 publications

References 41 publications

A multi-approach assessment of land use effects on groundwater quality in a karstic aquifer

A multi-approach assessment of land use effects on groundwater quality in a karstic aquifer

Identification of Karstification Zoning and Aquifer Channels in Karst Basin at Sendang Biru Beach, Malang-Indonesia: A Case Study

Nossana Spring (Northern Italy) under Climate Change: Projections of Future Discharge Rates and Water Availability

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