Hydrogeochemical characterization and identification of a system of regional flow. Case study: the aquifer on the Gulf of Urabá, Colombia

Ossa, Juliana; Betancur-Vargas, Teresita

doi:10.17533/udea.redin.n86a02

Cited by 6 publications

(3 citation statements)

References 20 publications

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“…Facies are the results of chemical reactions that occur between aquifer minerals and groundwater. These represent the average concentration of major ions in decreasing order (Valencia & Vargas, 2018). Several diagrams are there to plot the hydrogeochemical processes such Piper and Chadha diagram.…”

Section: Hydrogeochemical Facies For the Classification Of Groundwatermentioning

confidence: 99%

Identification of hydrogeochemical processes affecting the hydrochemistry of groundwater: A review

Sidhu,

Chandel

2023

ANRCM

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Hydrogeochemical processes are the processes that bring seasonal and spatial fluctuations in groundwater chemistry. These include rock-water interactions, ion exchange, evaporation, and other natural processes that affect groundwater as it flows from one location to another or as it remains at one location. Numerous ionic ratios, scatter plots, and diagrams are available for the identification of these processes. Ion exchange is an important contributor to groundwater chemistry and is of two types: direct ion exchange and reverse ion exchange. Rock-water interaction is another significant mechanism because the mineral content and formation of rocks through which groundwater flows, will influence its chemical composition. There are two major natural weathering processes, involving carbonic acid and sulphuric acid as the weathering agents. The ratios of Ca: HCO 3 and Ca: SO 4 help to identify the type of carbonate mineral being dissolved by these two acids. Groundwater chemistry is also impacted by anthropogenic factors like mining activities and improper disposal of industrial and sewage waste that can increase the concentration of nitrate and several heavy metals in it. The concentration of ions present in groundwater can be used to categorize it into different hydrogeochemical facies using Piper and Chadha diagrams. Identification of these hydrogeochemical processes helps to figure out the primary source of contamination of groundwater. We have tried to compile the information in one document. These processes provide an idea about mineral composition and hence the hydrogeology of the area. However, no single approach can reliably identify a certain process, we require a combination of indicators for this, that can help to develop different hydrogeochemical models for the prediction of groundwater quality.

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Section: Hydrogeochemical Facies For the Classification Of Groundwatermentioning

confidence: 99%

Identification of hydrogeochemical processes affecting the hydrochemistry of groundwater: A review

Sidhu,

Chandel

2023

ANRCM

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“…It identifies the direct recharge and the possible regional flow from distant recharge zones on Abibe mountain. On the other hand, the concentration of total dissolved solids (TDS) shows that waters with higher mineralisation and evolution (Na + Clfacies) occur in the northern zone (Ossa-Valencia and Betancur-Vargas, 2018). Following…”

Section: Conceptual Hydrogeological Modelmentioning

confidence: 99%

Multi-scale modelling for the understanding of flow systems in a layered aquifer, Urabá-Colombia

2022

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Numerical modelling is a valuable tool which allows the characterisation of groundwater flow behaviour, its interactions, and the representation of different flow systems that occur in an aquifer. A regional-scale model requires general information to describe the flow trends. In contrast, local and intermediate-scale models require a more detailed knowledge of the flow boundaries, and more field information. In order to understand the groundwater flow in the aquifer system of the Eje Bananero del Urabá Antioqueño-Colombia, a multi-scale numerical model was implemented using MODFLOW®. This was performed following modelling protocols on three spatial scales in which the regional model provided the boundary conditions for the intermediate pattern, and the intermediate pattern for the local model. Finally, we represented some details that relate local and intermediate flows to regional flows, in which surface-groundwater interactions involving both shallow and deep ascending flows became evident. The results obtained in this work show the potential of multi-scale modelling as a tool to recognise and understand the groundwater flows in a layered aquifer system, which provide grounds for decision-making and proper management of hydrogeological systems.

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“…Jasechko et al (2014) defined the amount‐weighted isotopic composition of precipitation for the summer and winter seasons (or dry and wet seasons in the tropics). In Colombia, some hydrogeologic study cases have been developed in sedimentary basins (International Atomic Energy Agency., 2009; Ossa‐Valencia & Betancur‐Vargas, 2018; Saylor et al, 2009; Villegas et al, 2018) and in hard rocks aquifers (Cetina et al, 2020; Gómez & Guzmán, 2011; Piña et al, 2018). Additionally, the isotopic composition of moisture sources that eventually turn into precipitation in Colombia's Northern Andes and Caribbean areas was recently characterized by Escobar et al (2021) using a Lagrangian FLEXPART model.…”

Section: Introductionmentioning

confidence: 99%

Seasonal and deep groundwater‐surface water interactions in the tropical Middle Magdalena River basin of Colombia

Piña

Donado

Silva

et al. 2022

Hydrological Processes

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This study is an attempt to understand flow patterns in the Middle Magdalena Valley River basin (MMV), a tropical lowland humid forest. For this purpose, we used δ2H and δ18O water stable isotopes measured in different surface and groundwater sources collected in the area both during the dry and the wet seasons. Two hundred and forty‐five water samples were collected in rainfall, springs, rivers, swamps, and wells (from 10 to 350 m depth). Thus, we were able to establish three tendencies that suggest the existence of surface‐groundwater interactions or preferential groundwater fluxes in the MMV: (i) samples with an isotopic enrichment from the wet to the dry season (groundwater samples following the rainfall isotopic variability), (ii) groundwater samples with an isotopic depletion from the wet to the dry season (opposite to the rainfall isotopic signal), and (iii) groundwater samples whose isotopic composition did not change significantly among seasons. However, none of these tendencies could be related to geology or the type of sampled site, which suggests that some not fully understood processes must be taking place in the hydrological system of the MMV. Both, surface, and groundwater samples are grouped close to the Colombian meteoric line, with exception of some swamp samples collected during the dry period, which displayed the expected evaporation trend line tendency. This may be an indicator of the connection/disconnection of swamps with the river during the hydrological year. Finally, this study aims to fulfil the gap in water‐stable isotope data in Colombia and provide insights about the hydrological setup of a lowland tropical basin.

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Hydrogeochemical characterization and identification of a system of regional flow. Case study: the aquifer on the Gulf of Urabá, Colombia

Cited by 6 publications

References 20 publications

Identification of hydrogeochemical processes affecting the hydrochemistry of groundwater: A review

Identification of hydrogeochemical processes affecting the hydrochemistry of groundwater: A review

Multi-scale modelling for the understanding of flow systems in a layered aquifer, Urabá-Colombia

Seasonal and deep groundwater‐surface water interactions in the tropical Middle Magdalena River basin of Colombia

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