The application of electrical methods in exploration for ground water resources in the River Malacatoya sub-basin, Nicaragua

Gómez, Llano; Fuentes, Oscar Escolero

doi:10.22201/igeof.00167169p.2010.49.1.1473

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…A particularly challenging paradigm is the adaptation of a geophysical survey method with mathematical formulation based on isotropic and homogeneous media for use in highly anisotropic and heterogeneous media (Rubin and Hubbard, 2005). Even so, studies involving ERT surveys in a crystalline geological environment showed that the method is efficient in this kind of hydrogeological investigation (Okpoli, 2013;Sequeira Gómez & Escolero Fuentes, 2010;Moreira et al, 2016;Moreira et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Identification for a Favorable Area of Groundwater Exploitation Based on Structural and Geoelectrical Data in Fractured Aquifer in Southern Brazil

Moreira

Helene

2022

Geofis Int

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La complejidad estructural inherente a los acuíferos fracturados, que controla la acumulación y el flujo de agua subterránea en zonas restringidas, puede dar lugar a un elevado número de pozos tubulares no productivos. El análisis combinado de las características geomorfológicas y las investigaciones indirectas, como los métodos geofísicos, permite identificar objetivos favorables para la explotación de aguas subterráneas. Este trabajo trata de los estudios estructurales regionales y locales acoplados con datos de tomografía de resistividad eléctrica con el fin de identificar objetivos favorables para la explotación de aguas subterráneas para el consumo urbano en un granito fracturado situado en la ciudad de Caçapava do Sul, en el sur de Brasil. El control estructural se manifiesta en las formas del terreno regional y condiciona claramente la orientación de los drenajes principales. Basándose en este control estructural, se realizaron cuatro líneas paralelas de tomografía de resistividad eléctrica en una zona de interés para la explotación de aguas subterráneas, seguidas de la generación de modelos de inversión 2D y de modelos pseudo 3D. El contacto entre el suelo superficial muy fino y el macizo granítico subyacente determina la existencia de un acuífero libre regional y la probable recarga del acuífero fracturado. En los modelos de inversión 2D se producen variaciones bruscas de resistividad relacionadas con las fracturas verticales localmente reconocidas en el yacimiento, aunque no muestran continuidad lateral (fuera del plano). El análisis de los mapas geofísicos a partir de 40metros de profundidad permite reconocer tres alineaciones de baja resistividad (alrededor de 500Ωm) dentro de un contexto granítico donde predominan los valores altos (por encima de 15000Ωm). Estas alineaciones muestran un patrón de triple intersección de fracturas reconocido también en las imágenes de satélite, que son altamente favorables para la acumulación y explotación de aguas subterráneas.

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Section: Introductionmentioning

confidence: 99%

Identification for a Favorable Area of Groundwater Exploitation Based on Structural and Geoelectrical Data in Fractured Aquifer in Southern Brazil

Moreira

Helene

2022

Geofis Int

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Recognition of Sulfides Zones in Marble Mine Through Comparative Analysis of Electrical Tomography Arrangements

Moreira

Santos

Ilha

et al. 2019

Pure Appl. Geophys.

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Sediment and water discharge assessment on santiago and pánuco rivers (central mexico): the importance of topographic and climatic factors

Muñoz‐Salinas

Castillo

2013

Geografiska Annaler: Series A, Physical Geography

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Muñoz-Salinas, E. and Castillo, M., 2013. Sediment and water discharge assessment on Santiago and Pánuco Rivers (central Mexico): the importance of topographic and climatic factors.ABSTRACT. This study explores the main factors controlling sediment and water discharge in the Santiago and Pánuco Rivers, the two largest rivers of central Mexico. Both Santiago and Pánuco Rivers are sourced in the Central Plateau of Mexico and flow in an opposite direction. Santiago River flows over a tectonically active margin draining to the Pacific Ocean, and Pánuco River flows into the passive margin of the Gulf of Mexico. Mean annual and monthly values of suspended sediment load and water discharge spanning around 50 years were used to evaluate sediment load and water discharge in these two rivers. Our findings indicated that Santiago River delivers to the ocean around 45% more sediment than Pánuco River. However, we found that Santiago River has about half the water discharge of Pánuco River. The high river gradient along Santiago River is likely to enhance the net erosion and sediment transport capacity. Water discharge at Pánuco Basin is higher than in Santiago Basin because the annual rainfall is higher for the former. The difference in sediment and water discharge for both rivers are also related to El Niño Southern Oscillation events. Our results indicated that water discharge in Santiago River increases during El Niño and La Niña events. In contrast, Pánuco River is mostly affected by La Niña events.

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The application of electrical methods in exploration for ground water resources in the River Malacatoya sub-basin, Nicaragua

Cited by 5 publications

References 12 publications

Identification for a Favorable Area of Groundwater Exploitation Based on Structural and Geoelectrical Data in Fractured Aquifer in Southern Brazil

Identification for a Favorable Area of Groundwater Exploitation Based on Structural and Geoelectrical Data in Fractured Aquifer in Southern Brazil

Recognition of Sulfides Zones in Marble Mine Through Comparative Analysis of Electrical Tomography Arrangements

Sediment and water discharge assessment on santiago and pánuco rivers (central mexico): the importance of topographic and climatic factors

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