Series-2 (Nov. – Dec. 2021)Nov. – Dec. 2021 Issue Statistics
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Abstract: Groundwater recharge is a key parameter needed for the calculation of water budgets, which are necessary for accurate sustainable groundwater management. In this context, the quantification of groundwater recharge in karst aquifers situated in the Wonderfonteinspruitcatchment (South Africa) is an important, yet not easy task to address. This catchment is divided into six groundwater compartments (Zuurbekom, Gemsbokfontein,Venterspost, Bank, Oberholzer and Boskop-Turffontein Compartments) by mostly north-south trending dykes. In reality, natural groundwater recharge of the study area has been intensely affected by a lack of precipitation. In this paper the.....
Keywords: Groundwater recharge,Chloride Mass Balance method, Saturated Volume Fluctuation method, Kessler method, APLIS method, Thornthwaite method, South Africa
. Andreo, B., Vías, J.M., Durán, JJ., Jiménez, P., López-Geta J.A., Carrasco, F. (2008). Methodology for groundwater recharge assessment in carbonate aquifers: application to pilot sites in southern Spain. Hydrogeol J 16:911–925
. Bakalowicz, M. (2005). Karst groundwater: a challenge for a new resource. Hydrogeol J 13:148–160
. Barnard, H.C (2000). An explanation of the 1:500 000 General Hydrological Map. Johannesburg 2526. Pretoria: Department of Water Affairs and Forestry
. Bredenkamp, D.B. (1993).Hydrological Evaluation of the West Rand dolomitic compartments: Zuurbekom, Gemsbokfontein East and Gemsbokfontein West. Pretoria: DWAF
. Brink, A.B.A.(1979). Engineering geology of South Africa, Vol 1. Building Publications, Pretoria, 319 pp.
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Abstract: A seismic refraction investigation has been conducted in this study to determine the presence of potable groundwater aquifer within the subsurface around Yenagoa, Bayelsa State, South-south, Nigeria. The analysis refraction results were correlated with the existing borehole information obtained from resistivity surveys carried out in the same study area. There was a good agreement between the seismic results and borehole information. To obtain the layer velocities used for the seismic interpretations, a t-x curve was plotted with the refraction data obtained from the seismic events (first breaks) picked using the ReflexW Version 3.5.7 Software. The p-wave layer velocities were then derived as the inverse of the slope of various segments of the curve while the downdip and updip thicknesses of the layers were computed using the time intercept equations. The s-wave layer velocities were calculated from a well-fitted regression model........
Keyword: Exploration, Clean, Groundwater, Aquifer, Seismic, Refraction, Borehole
. Nejad, H.T., Mumipour, M., Kabor, R. and Najib, O.A. (2011). Vertical Electrical Sounding (VES) Resistivity Survey Technique to Explore Groundwater in an Arid Region, Southeastern Iran. Journal of Applied Science 11(23), 3765-3774
. Ohwona, O.C., Marere, S.O., Burutu, L.K. and Ohwovorione, C.U. (2013). Delineation of Depth of Water Table and Groundwater Potentials from Geoelectric Evaluation in Abavo Delta State and Urhonigbe Edo State Area of Niger Delta, Nigeria. Standard Sci. Res. Essays 1(13), 340-346
. Bashir, I.Y., Izham, M.Y. and Rindam, M. (2014).Vertical Electrical Sounding Investigation of Aquifer Composition and Its Potential to Yield Groundwater in Some Selected Towns in Bida Basin of North Central Nigeria. Journal of Geography and Geology 6 (1), 2-11
. Agbalagba, E.O., Nenuwe, O.N. and Owoade, L.R. (2019). Geophysical Survey of Groundwater Potential and Radioactivity Assessment of Soil Depth Lithology for Drinking Water Quality Determination. Earth Science 78, 1-12
. Nwankwo, R.C. and Udo, A.A. (2021). Exploration for Clean Drinkable Groundwater Aquifer Using a High Resolution Real-Time Vertical Electrical Sounding Resistivity Technique at the University of PortHarcourt Campus, Choba, Rivers State, South-South, Nigeria. International Journal of Innovative Healthcare Research 9(3), 32-48
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|Paper Type||:||Research Paper|
|Title||:||Investigating Differential Pressure Effect on Lithology and Fluid Discriminators|
|Authors||:||R. C. Nwankwo || I. Aigbedion|
Abstract: We have analysed the crossplots of rock properties and attributes against differential pressure. Our core objective was to investigate the effect of the differential pressure on the ability of the rock properties and attributes (velocity, Vp/Vs, Poisson ratio, lambdarho, murho, lambdarho/murho, impedance, impedance ratio, and Poisson impedance) to discriminate lithology and hydrocarbon fluids in reservoir sands at depths. Observed vulnerability or otherwise to the masking effect of differential pressure/sediment compaction at depths has served as a criterion for classification of the rock properties/attributes into good and poor discriminators. From our results, we found that λρ, λρ/μρ, Vp/Vs, Poisson ratio, PI, and Zp/Zs are good fluid discriminators owing to their non-vulnerability to compaction and differential pressure effect, while μρ, Vp. Vs, Zp, and Zs tend to discriminate lithology and fluids poorly because of their observed susceptibility........
Keyword: Differential, pressure, compaction, depth, effect, lilthology, fluids, discriminator
. Biot MA (1956). Theory of propagation of elastic waves in a fluid-saturated porous solid. Low frequency range. J.Acoust. Soc. Am
. Biot MA (1962a). Generalized theory of acoustic propagation in porous dissipative media J.Acoust. Soc. Am 34:1254-1264
. Direzza A, Permana IKAA (2012).The application of Poisson impedance inversion for sandstone reservoir characterization in the lower Talang Akar Formation: a case study of Melandong-West Java. Conference Proceeding at AAPG International Convention and Exhibition Singapore
. Domenico SN (1976). Effect of brine–gas mixture on velocity in an unconsolidated sand reservoir. Geophysics, 41: 882–894
. Domenico SN (1984). Rock lithology and porosity determination from shear and compressional wave velocity: Geophysics 49:1188 – 1195
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|Paper Type||:||Research Paper|
|Title||:||Effect of Activated Biochar on Soil Physical Properties and Heat Capacity in a Humid Tropical Ultisol|
|Authors||:||Orji O. A. || Igwe, M. O|
Abstract: Management of Soil physical properties is key in managing sustainable soil productivity. This study was carried in the high tunnel hoop house located at the Teaching and Research Farm of the Rivers State University Port Harcourt, to determine the effect of activated biochar on some soil physical properties and heat capacity. The Biochar materials included: wood shaving (WS), corn cob (CC), hard wood (WD), palm kernel shell (PK), cattle bone (BN). These were produced separately by pyrolysis and used to amend the topsoil used. Results showed that biochar improved some soil physical properties. Bulk density was reduced from 1.42gcm-3 in the control to 1.28 gcm-3 by CC biochar., and total Saturated hydraulic conductivity was increased by 108% by BN biochar, while total porosity........
Keyword: biochar; soil physical properties; heat capacity.
. Adekiya, A.O., Agbede T. M., Aboyeji C. M., Dunsin O., and Simeon V. T.,(2019) "Effects of biochar and poultry manure on soil characteristics and the yield of radish," Scientia Horticulturae, vol. 243:457–463.
. Adekiya,A.O., Agbede, T.M., Olayanju, A., Ejue, W.S., Adekanye, T.A., Adenusi, T.T., and Ayeni, J.F. (2020). Effect of Biochar on Soil Properties, Soil Loss, and Cocoyam Yield on a Tropical Sandy Loam Alfisol. The Scientific World Jour. Vol. 2020, Article ID .9391630, 9 pages https://doi.org/10.1155/2020/9391630.
. Ajayi,A.E., Holthusen, D. and Horn, R. (2016). "Changes in microstructural behaviour and hydraulic functions of biochar amended soils," Soil and Tillage Research, vol. 155: 166-175.
. Atkinson, C. J., Fitzgerald, J. D. and Hipps, N. A. (2010). Potential mechanisms for achieving agricultural benefits from biochar application to temperature soils: a review. Plant and Soil. 337 : 1-18.
. Ayodele, A., Oguntunde, P., Joseph, A., & Dias Junior, M. D. S. (2009). Numerical analysis of the impact of charcoal production on soil hydrological behavior, runoff response and erosion susceptibility. Revista Brasileira de Ciência do Solo, 33, 137-146.
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Abstract: Airborne gravity data over parts of the Lower Benue Trough of Nigeria were analyzed and interpreted to determine the basement depth of the source to gravity anomaly over the area. The study area lies within latitude.......
Keyword: Lower Benue Trough, Source Parameter Imaging; Spectral Analysis; Sedimentary Thickness; Hydrocarbon Accumulation.
. Ofoegbu, CO. A Review of the Geology of the Benue Trough of Nigeria. Journal of Africa Earth Sciences. 1985; 3: 293-296.
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. Osinowo OO, Taiwo TO. Analysis of high-resolution aeromagnetic (HRAM) data of Lower Benue Trough, Southeastern Nigeria, for hydrocarbon potential evaluation. NRIAG Journal of Astronomy and Geophysics. 2020; 9(1): 350-361.
. Ugwu GZ, Ezema PO, Ezeh CC. (2013). Interpretation of aeromagnetic data over Okigwe and Afikpo areas of the Lower Benue Trough, Nigeria. International Research Journal of Geology and Mining. 2013; 3(1): 1-8.
. Murat RC. Stratigraphy and Paleogeography of the Cretaceous and Lower Tertiary in Southern Nigeria: In African Geology (Dessauvagie, T.F.J and Whiteman, A.J, eds.). 1972; 251-266