Assessment of subsurface lithology, groundwater depth, and quality of UET Lahore, Pakistan, using electrical resistivity method

Mehmood, Zahid; Khan, Noor Muhammad; Sadiq, Shamsher; Mandokhail, Saeedullah Jan; Ashiq, Syed Zishan

doi:10.1007/s12517-020-5260-9

Cited by 9 publications

(5 citation statements)

References 23 publications

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“…The ongoing changes in agriculture and urban development further impact the DWT, causing a continuous decrease in DWT both in densely populated areas and agricultural regions [58,65]. The depth of the water table and groundwater quality are continuously deteriorating in most regions [61]. The DWT is declining because the rate of abstraction is higher than the rate of recharge.…”

Section: Anthropogenic Factors Attribution With Groundwater Quality A...mentioning

confidence: 99%

Groundwater Age and Origin and Its Relation with Anthropogenic and Climatic Factors

Iqbal,

Nabi,

Iqbal

et al. 2024

Water

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Groundwater plays a major role in addressing the worldwide problem of water scarcity and food security. With a growing population and increasing urbanization, there is a rising demand for groundwater to meet agricultural and domestic water needs. A variety of advanced approaches are necessary to sustain groundwater management. This study investigated the age and origin of groundwater, as well as its relationship with anthropogenic and climatic factors. Stable isotopes were used, namely oxygen-18 (18O) and deuterium (2H) for the estimation of groundwater origin and radioactive isotopes of Tritium (3H) for the estimation of its age. The investigation of stable isotopes revealed that the aquifer is predominantly influenced by river water, with a minor contribution from rainwater. Furthermore, the analysis of radioactive isotopes revealed that the groundwater age ranges from 5 to 50 years old in most areas. Older groundwater is predominantly found in urban areas, while younger groundwater is present in agricultural and woodland regions. However, the presence of “old” water in the upper groundwater layers in urban areas is attributed to over-abstraction and limited natural recharge. The primary climatic factor that governs the age and origin of groundwater is rainfall upstream of the study area, which directly contributes to the river flows. The rainfall is high in the east but, due to urbanization, recharge is decreased. Consequently, old and river recharge groundwater is found in this area. These observations underscore the unsustainable and alarming use of groundwater in urban areas.

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Section: Anthropogenic Factors Attribution With Groundwater Quality A...mentioning

confidence: 99%

Groundwater Age and Origin and Its Relation with Anthropogenic and Climatic Factors

Iqbal,

Nabi,

Iqbal

et al. 2024

Water

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“…Lately, greater significance is given to the investigation of subsurface water in hard rock and sedimentary regions, like the present study area (Deepa et al, 2016;Devaraj et al, 2018). The occurrence of pore water in subsurface soil, porosity and salinity of the water isused to delineate resistivity and its corresponding thickness in different layer/zones (Gopinath et al, 2015;Kayode et al, 2016;Mehmood et al 2020). The advantage of applying resistivity method with different values of resistance in Ωm is much larger than other geophysical properties (Kalinski et al 1993).…”

mentioning

confidence: 95%

Pore resistivity variation by Resistivity imaging technique in sedimentary part of main Gadilam river basin, Cuddalore District, Tamil Nadu, India

Ravi

Aravindan

Ramachandran

et al. 2021

JANS

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Electrical resistivity is the only property of physics which give information of subsurface moisture content in the formation, Hence geophysical electrical resistivity survey was carried out to investigate the nature of shallow subsurface formations and geological contact in the main Gadilam river basin of Cuddalore District in Tamil Nadu. Twenty-seven vertical electrical soundings (VES) were conducted by Schlumberger configuration in the basin. Data is interpreted by curve matching techniques using IPI2 WIN software, layer parameters like apparent resistivity (?a) and thickness (h) interpretation were exported to Geographic Information System (GIS). Interpretation distinguishes three major geoelectric layers like topsoil, sandy clay layer, clayey sand layer along the contact zone in the basin. Interpreted VES sounding curves are mostly four-layer cases of QH, H, HA and KH type. Investigation demarcates lithology of subsurface and hydrogeological set up by employing maximum possible electrode sounding to infer saline water and freshwater occurrence based on resistivity signals. Zone of groundwater potential map was prepared with the combination of resistivity (?= ?1+ ?2+ ?3+ ?4) and corresponding thickness (T= T1+T2+T3+T4). High resistivity value of >200 ? m and low resistivity value of <10 ? m show the occurrence of alkaline and saline water within the formation aquifers as a result of possible rock water interaction and saline water dissolution. Four-layer resistivity cases from the matched curve (namely KH, AH, QA, and KA type) show the resistivity distribution/variation. It separates the freshwater depth wish from 1 to 140 ? m in fluvial sediments. Flood basin, sandstone and clay layer with low resistivity value of 3.16 - 7.5 ? m indicates contact with saline and freshwater aquifer. The Iso – resistivity map delineates saline water and freshwater zones with in the fourth layer cases in the same locations to indicate the irrational way of abstracting groundwater, resulting in saltwater ingress.

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“…The current study focuses on the delineation and characterization of the groundwater potential zones in the north Omdurman area using vertical electrical sounding techniques combined with lithological logs. Several successful works have been reported in the literature on using the VES method in hydrogeological studies to delineate the potential zones of groundwater or to measure the hydrogeological parameters [19][20][21][22][23][24][25]. The advantage of using geophysical methods over the other methods in aquifer delineation is that they are quick and cost-effective.…”

Section: Introductionmentioning

confidence: 99%

Delineation of groundwater potential zones in northern Omdurman area using electrical resistivity method

Mohammed

Szabó

Szűcs

2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study is conducted in the northern Omdurman area to delineate groundwater potential zones using electrical resistivity method. Omdurman is the most ancient city known as the historical capital of Sudan. Geoelectric survey employing vertical electrical sounding (VES) technique is carried out to explore the availability of groundwater in the study area. The measurements were conducted using Schlumberger configuration. In this study, twelve VES points are measured along four profiles. The measured data is processed and interpreted using 1D geophysical inversion technique constrained by lithological data obtained from two boreholes. The integration of electrical and geological data led to a reliable interpretation of the geophysical model. The obtained results revealed that the geological succession of the study area is mainly composed of five layers of recent deposits, clay, sandy clay, silicified and ferruginous sandstone, and sandstone. According to the resulting hydrogeological sections, the water-bearing formation is composed mainly of coarse sandstone and varies in thickness under confined conditions. The geoelectrical sounding method successfully fulfilled the aims of the study. Nevertheless, detailed hydrogeological and geophysical investigations need to be carried out for a comprehensive characterization of the groundwater aquifer.

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Assessment of subsurface lithology, groundwater depth, and quality of UET Lahore, Pakistan, using electrical resistivity method

Cited by 9 publications

References 23 publications

Groundwater Age and Origin and Its Relation with Anthropogenic and Climatic Factors

Groundwater Age and Origin and Its Relation with Anthropogenic and Climatic Factors

Pore resistivity variation by Resistivity imaging technique in sedimentary part of main Gadilam river basin, Cuddalore District, Tamil Nadu, India

Delineation of groundwater potential zones in northern Omdurman area using electrical resistivity method

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