Combined application of vertical electrical sounding and 2D electrical resistivity imaging for geothermal groundwater characterization: Hammam Sayala hot spring case study (NW Tunisia)

Chabaane, Achref; Redhaounia, Belgacem; Gabtni, Hakim

doi:10.1016/j.jafrearsci.2017.07.003

Cited by 28 publications

(17 citation statements)

References 14 publications

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“…Table 3 summarises the results of the VES. The resistivity was between 20 and 41,000 ohm m for all of the six sites; thus, there are no highly conductive materials in the study sites (Chabaane et al, 2017; Reyes-López et al, 2008).…”

Section: Evaluation Criteria For Landfill Site Selectionmentioning

confidence: 98%

Landfill site selection in Makkah using geographic information system and analytical hierarchy process

Osra

Kajjumba

2019

Waste Manag Res

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Municipal solid waste is a problem to developed and developing cities in the world. If municipal solid waste is not managed well, it can be a source of numerous contaminants to water, air, and soil. Although landfill is at the bottom in terms of priorities of municipal solid waste management techniques, its applicability cannot be neglected in developing economies. Landfill site selection is a hard puzzle comprised of political, social, economic, and environmental factors. Makkah, Saudi Arabia, is targeting 30 million pilgrims by 2030, putting the city in a difficult circumstance: More pilgrims, more municipal solid waste. The current dump site, Kakia, is expected to be full by 2020; thus, there is a need to locate a new landfill site. In 20 years, Makkah is expected to produce 44 million tonnes of municipal solid waste, which requires approximately a 7.5 m × 5,874,000 square meter landfill capacity. In this study, a geographic information system, analytical hierarchy process, vertical electrical sounding, and ground-penetrating radar are applied to select the best new landfill site for Makkah. By combining these techniques, there are three suitable site locations: (39°36 ́38.45 ́ ́E: 21°18 ́26.46 ́ ́N), (39°37 ́54.07 ́ ́E: 21°19 ́35.25 ́ ́N), and (39°44 ́04.45 ́ ́E: 21°13 ́08.93 ́ ́N). These sites have a considerable depth to water table of 12 m. Therefore, the city of Makkah should use these findings to establish a sanitary landfill.

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Section: Evaluation Criteria For Landfill Site Selectionmentioning

confidence: 98%

Landfill site selection in Makkah using geographic information system and analytical hierarchy process

Osra

Kajjumba

2019

Waste Manag Res

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“…Two-dimensional electrical resistivity tomography is a technique widely used for the characterization of the subsoil with multiple purposes and applications. In general, its aim is the location of subsurface complex structures and anomalies (both geological and anthropic) [27][28][29][30].…”

Section: Ertmentioning

confidence: 99%

Characterizing Geological Heterogeneities for Geothermal Purposes through Combined Geophysical Prospecting Methods

Blázquez¹,

García²,

Nieto³

et al. 2020

Remote Sensing

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Geothermal energy is becoming essential to deal with the catastrophic effect of climate change. Although the totality of the Earth’s crust allows the exploitation of shallow geothermal resources, it is important to identify those areas with higher thermal possibilities. In this sense, geophysical prospecting plays a vital role in the recognition and estimation of potential geothermal resources. This research evaluates the geothermal conditions of a certain area located in the center of Spain. The evaluation is mainly based on geological and geophysical studies and, in particular, the Time Domain Electromagnetic Method and the Electrical Resistivity Tomography. Once we analyzed the geology and the historical thermal evidence near the study area, our geophysical results were used to define the geothermal possibilities from a double perspective. In relation to anomalous heat gradient, the identification of a fault and the contact with impermeable granitic materials at the depth of 180 m denotes a potential location for the extraction of groundwater. Regarding the common ground-source heat-pump uses, the analysis has allowed the determination of the most appropriate area for the location of the geothermal well field. Finally, the importance of accurately defining the position of the drillings was confirmed by using software GES-CAL.

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“…Exploration for geothermal energy often involves geological (including remote sensing), geophysical and geochemical investigations (El-Qady, 2006;Kana et al, 2015;Shah et al, 2015;Chabaane et al,2017;Azaiez et al, 2020), Geophysical investigation is either direct, involving methods that measure parameters (e.g. temperature, fluid content, resistivity/conductivity) that are directly influenced by geothermal activity such as the thermal, electrical resistivity, magnetotelluric (electromagnetic) and self-potential methods or indirect with methods that explore the physical parameters of the host rock (e.g.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of geothermal energy resources in parts of southeastern sedimentary basin, Nigeria

Okiyi¹,

Ibeneme²,

Obiora³

et al. 2021

ijs

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Residual aeromagnetic data of parts of Southeastern Nigerian sedimentary basin were reduced to the equator and subjected to magnetic vector inversion and spectral analysis. Average depths of source ensembles from spectral analysis were used to compute depth to magnetic tops (Z), base of the magnetic layer (Curie Point t Depth (CPD)), and estimate geothermal gradient and heat flow required for the evaluation of the geothermal resources of the study area. Results from spectral analysis showed depths to the top of the magnetic source ranging between 0.45 km and 1.90 km; centroid depths of 4 km - 7.87 km and CPD of between 6.15 km and 14.19 km. The CPD were used to estimate geothermal gradients which ranged from 20.3°C/km to 50.0°C/km 2 2 and corresponding heat flow values of 34.9 mW/m to 105 mW/m , utilizing an average thermal conductivity -1 -1 of 2.15 Wm k . Ezzagu (Ogboji), Amanator-Isu, Azuinyaba, Nkalagu, Amagunze, Nta-Nselle, Nnam, Akorfornor environs are situated within regions of high geothermal gradients (>38°C/Km) with models delineated beneath these regions using 3D Magnetic Vector Inversion, having dominant NW-SE and NE-SW trends at shallow and greater depths of <1km to >7 km bsl. Based on VES and 2D imaging models the geothermal system in Alok can be classified as Hot Dry Rock (HDR) type, which may likely have emanated from fracture systems. There is prospect for the development of geothermal energy in the study area. Keywords: Airborne Magnetics, Magnetic Vector Inversion, Geothermal Gradient, Heat Flow, Curie Point Depth, Geothermal Energy.

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Combined application of vertical electrical sounding and 2D electrical resistivity imaging for geothermal groundwater characterization: Hammam Sayala hot spring case study (NW Tunisia)

Cited by 28 publications

References 14 publications

Landfill site selection in Makkah using geographic information system and analytical hierarchy process

Landfill site selection in Makkah using geographic information system and analytical hierarchy process

Characterizing Geological Heterogeneities for Geothermal Purposes through Combined Geophysical Prospecting Methods

Evaluation of geothermal energy resources in parts of southeastern sedimentary basin, Nigeria

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