Density and reservoir properties of Cretaceous rocks in southern Benue Trough, Nigeria: implications for hydrocarbon exploration

Selemo, A. O. I.

doi:10.1007/s12517-018-3634-z

Cited by 12 publications

(2 citation statements)

References 32 publications

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“…The outcrop pattern of geologic formations and major structural elements in the Cross River Basin is shown in Figure 2. Tectonism was trailed by magmatism which caused the formation of volcanic rocks in the Asu River and Eze Aku Groups [59,[67][68][69] . This is illustrated in Figure 3.…”

Section: General Hydrogeological Characteristicsmentioning

confidence: 99%

Re-examination of Hydrochemistry and Groundwater Potentials of Cross River and Imo-Kwa-Ibo Intersecting Tropical Basins of SouthSouth Nigeria

et al. 2020

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This review attempted a detailed description of geological and hydrogeological configurations of Cross River and Imo-Akwa Ibo basins. It presented a synthesis of hydrochemistry and a description of the hydrogeological configurations of the two basins. Hydrogeologically, most areas under Cross River and Imo-Kwa-Ibo are poor in terms of groundwater potentials. Based on the hydrochemistry, the basins hold water of excellent quality. Groundwater sources fall in soft to moderately hard classes. The entire sources groundwater has a TDS concentration of less than 500 mg/l. Groundwater classification based on electrical conductivity (EC) showed EC levels were less than 500 µS/cm. Most of the examined cations and anions are within WHO reference guidelines for drinking water quality. However, no broad analysis of water quality based on water quality indices. Also, studies modeling pollution or the impact of land use changes on groundwater quality are wanting. Thus, further analysis of the hydrochemistry of groundwater aquifers is recommended.

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Section: General Hydrogeological Characteristicsmentioning

confidence: 99%

Re-examination of Hydrochemistry and Groundwater Potentials of Cross River and Imo-Kwa-Ibo Intersecting Tropical Basins of SouthSouth Nigeria

et al. 2020

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“…They have lost their popular resistivity characteristics due to the effect of a series of tectonic episodes that they have experienced(Benkhelil 1989). The high resistivity observed in the shale units is attributable to high induration of the rocks as a result of compaction and baking arising from burial history and low-grade metamorphism (Obiora and Umeji 2004) that the rocks encountered in the Santonian period, which altered their mineralogical composition (Obiora and Charan 2011) and increased their density(Obasi and Selemo 2018). The degree of water saturation is another factor that alters the bulk subsurface resistivities of rocks(Telford et al, 1990;Uhlemann et al 2017), whereby decreasing saturation causes an increase in their resistivity.…”

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confidence: 99%

Assessment of aquifer vulnerability in the tectonically deformed sedimentary rocks in Abakaliki area, southeastern Nigeria, using geophysical and geological data

Ahmed

Aigbadon

Anakwuba

et al. 2022

Preprint

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A combination of the IEC, AVI, and GOD pollution indices were used to assess the vulnerability of the fractured rock aquifer in the Abakaliki area to pollution from anthropogenic sources. The topsoil ranges from laterite to silt to silty-clay, according to the results of the vertical electrical sounding (VES). The geoelectric sections have varying numbers of layers (1–6 layers) with their resistivity ranges as 29.16–3,949.30 Ω, 4.98–1,630.70 Ωm, 0.35–3,767.20 Ωm,1.76–7926.30 Ωm, and 1.11–3,060.20 Ωm respectively. These have been grouped into four main lithologic units namely the topsoil, indurated/baked shale, fractured shale/sandstone (the aquiferous unit), and the consolidated sandstone units. The thickness of the vadose zone is generally thin (< 18 m), while their hydraulic conductivity is relatively high (0.20–16.11 m/day) for argillaceous rocks. The IEC values (0.003–0.850 S) suggest a weak to fair protective capacity for the vadose zone. The result of the HR (1.01–55.49) indicates that the underlying aquifer is highly to extremely vulnerable, and the GOD values (> 0.7) agree that they are extremely vulnerable.

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Efficiency and limitation of vertical electrical sounding in evaluation of groundwater potential in fractured shale terrain: a case study of Abakaliki Area Lower Benue Trough Nigeria

Akpa

Chukwu

Kelechi

2022

Environ Monit Assess

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Density and reservoir properties of Cretaceous rocks in southern Benue Trough, Nigeria: implications for hydrocarbon exploration

Cited by 12 publications

References 32 publications

Re-examination of Hydrochemistry and Groundwater Potentials of Cross River and Imo-Kwa-Ibo Intersecting Tropical Basins of SouthSouth Nigeria

Re-examination of Hydrochemistry and Groundwater Potentials of Cross River and Imo-Kwa-Ibo Intersecting Tropical Basins of SouthSouth Nigeria

Assessment of aquifer vulnerability in the tectonically deformed sedimentary rocks in Abakaliki area, southeastern Nigeria, using geophysical and geological data

Efficiency and limitation of vertical electrical sounding in evaluation of groundwater potential in fractured shale terrain: a case study of Abakaliki Area Lower Benue Trough Nigeria

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