Nonlinear estimation of aquifer parameters from surficial resistivity measurements

Singh, Kamla

doi:10.5194/hessd-2-917-2005

Cited by 78 publications

(62 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In order to determine the degree of source rock weathering, a few indices of weathering have been proposed based on the molecular proportions of mobile and immobile element oxides (Na 2 O, CaO, K 2 O and Al 2 O 3 ). Thus, the chemical composition of weathering products in a sedimentary basin is expected to reveal the mobility of various elements during weathering [76]. The indices of weathering/alteration include chemical index of alteration (CIA), chemical index of weathering (CIW) and plagioclase index of alteration (PIA).…”

Section: Paleoweathering Conditionsmentioning

confidence: 99%

Geochemistry of sandstones and shales from the Ecca Group, Karoo Supergroup, in the Eastern Cape Province of South Africa: Implications for provenance, weathering and tectonic setting

2017

View full text Add to dashboard Cite

Geochemical compositions of twenty-four sandstone and shale samples from the Ecca Group were analysed to decipher their provenance, paleoweathering conditions and tectonic setting. The shales have high Fe 2 O 3 , K 2 O, TiO 2 , Ce, Cu, Ga, La, Nb, Nd, Rb, Sc, Sr, Th and Y content more than the sandstones, whereas, sandstones are higher in SiO 2 , Hf and Zr than the shales. The positive correlations of Al 2 O 3 with other elements as well as the abundance of Ba, Ce, Th, Rb, Zn and Zr suggest that these elements are primarily controlled by the dominant clay minerals. Tectonic discrimination diagrams revealed that the sandstones and shales are mostly of quartzose sedimentary provenance, suggesting that they were derived from a cratonic interior or recycled orogen. The binary plots of TiO 2 versus Ni, TiO 2 against Zr and La/Th versus Hf as well as the ternary diagrams of V-Ni-Th*10 indicate that the shales and sandstones were derived from felsic igneous rocks. A-CN-K (Al 2 O 3 -CaO-K 2 O) ternary diagram and indices of weathering (CIA, CIW and PIS) suggest that the granitic source rocks underwent moderate to high degree of chemical weathering. The CIA values range between 24.41% and 83.76%, indicating low to high weathering conditions. The CIW values for the studied sandstones and shales range from 25.90 to 96.25%, suggesting moderate to high intensive chemical weathering. ICV values for the sandstones and shales vary from 0.71 to 3.6 (averaging 1.20) and 0.41 to 1.05 (averaging 0.82), respectively. The K 2 O/Na 2 O ratios for the studied samples vary from 0.71 to 8.29, which reveal moderate to high maturity. The plot of CIA against ICV shows that most of the shales are geochemically mature and were derived from both weak and intensively weathered source rocks. The tectonic setting discrimination diagrams support passive-active continental margin setting of the provenance.

show abstract

Section: Paleoweathering Conditionsmentioning

confidence: 99%

Geochemistry of sandstones and shales from the Ecca Group, Karoo Supergroup, in the Eastern Cape Province of South Africa: Implications for provenance, weathering and tectonic setting

2017

View full text Add to dashboard Cite

show abstract

“…al., 2004). Concerning Banda area U.P., India, the presence of hard rock lithologies in the area may be the cause the negative correlation of the variation in permeability with resistivity (Singh, 2005). This type of inverse correlation typically is found in saturated fractured hard rock aquifer, as previously discussed, but the polynomial correlation is attributed to dissimilarity between porosity and water saturation.…”

Section: Second Category (Water Saturation > 50% > Porosity)mentioning

confidence: 74%

“…al., 1996), (B) Granitic host rock, (OUC), Hyderabad, A.P., India (K.P. Singh, 2005). Fractured crystalline bed rock, central landfill, Rhode Island, USA (Frohlich et.…”

Section: First Category :( Fully Saturated Aquifer or Water Saturatiomentioning

confidence: 99%

See 1 more Smart Citation

Influence of Degree of Saturation in the Electric Resistivity–Hydraulic Conductivity Relationship

Khalil

Santos

2009

Surv Geophys

View full text Add to dashboard Cite

“…This is a non-linear relationship between hydraulic conductivity (K) and apparent resistivity (ρ a ) by Singh (2005) [18].…”

Section: Methodsmentioning

confidence: 99%

Quality Assessment and Evaluation of Groundwater Potentials in Parts of Buruku and Gboko Local Government Area Councils in Benue State

Ehirim¹,

Nwankwo²

2016

IJG

View full text Add to dashboard Cite

Hydraulic and layer parameters of groundwater aquifer have been evaluated in parts of Buruku and Gboko local government area councils, for the primary purpose of assessing quality and potential of groundwater in the areas. A total of 18 Vertical Electrical Sounding (VES) stations were occupied along traverse lines using the Schlumberger electrode configuration. The results revealed a characteristic QQA, QHH and QH type curves, with 6 -7 geoelectric subsurface layers. The geoelectric layers are dominantly sandy with intercalations of shale at shallow depths in most stations. The aquiferous layers were delineated at the fourth and fifth geoelectric layers with average aquifer resistivity and depth of 420.56 Ω·m and 69.1 m, respectively. Groundwater flow is generally from the northeast to the southwest in line with the tectonics of the Benue trough. Two potential groundwater zones were delineated. These are the zone of poor quality water to the north (central) and east of the area of high potential and the zone of quality groundwater to the northeast, west and southwest of low potential. The study revealed that productive boreholes for excellent and sustainable yields were more viable in the northern (central) and eastern parts of the study area than in the northeast, west and southwest parts.

show abstract

Nonlinear estimation of aquifer parameters from surficial resistivity measurements

Cited by 78 publications

References 7 publications

Geochemistry of sandstones and shales from the Ecca Group, Karoo Supergroup, in the Eastern Cape Province of South Africa: Implications for provenance, weathering and tectonic setting

Geochemistry of sandstones and shales from the Ecca Group, Karoo Supergroup, in the Eastern Cape Province of South Africa: Implications for provenance, weathering and tectonic setting

Influence of Degree of Saturation in the Electric Resistivity–Hydraulic Conductivity Relationship

Quality Assessment and Evaluation of Groundwater Potentials in Parts of Buruku and Gboko Local Government Area Councils in Benue State

Contact Info

Product

Resources

About