Series-1Jan. – Feb. 2023 Issue Statistics
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Contact Locations Mapping of Magnetic Structures at Homa Hills Geothermal Prospect Area, Kenya |
| Country | : | Kenya |
| Authors | : | Onyango Shem || Bernard Adero |
 |
: | 10.9790/0990-1101010109  |
Abstract: The location of edges of magnetic structures can be delineated and mapped accordingly through a close and careful analysis of magnetic data. These structural edges are geological features such as faults with lateral changes in susceptibility and geological contacts otherwise known as boundaries where a magnetic body may discontinue or terminate with differing susceptibility. The present work, therefore, aims at delineating contact locations of magnetic structures beneath Homa Hills geothermal manifestations. Homa Hills is a site of volcano in tertiary and Pleistocene times in the West of Kendu occupying most of the Homa peninsula, protruding into the Winam Gulf forming the eastern flank of Homa Bay......
Keywords: Contact Location, Generalized Derivative, Homa Hills, Horizontal Gradient, Reduction to the Equato
[1]. Baranov, V. (1957). A new method for interpretation of aeromagnetic maps: pseudo-gravimetric anomalies. Geophysics, 22(2), 359-382.
[2]. Baranov, V., &Naudy, H. (1964). Numerical calculation of the formula of reduction to the magnetic pole. Geophysics, 29(1), 67-79.
[3]. Blakely, R. J., & Simpson, R. W. (1986). Approximating edges of source bodies from magnetic or gravity anomalies. Geophysics, 51(7), 1494-1498.
[4]. Bournas, N., & Bake, H. A. (2001). Interpretation of magnetic anomalies using the horizontal gradient analytic signal.
[5]. Cooper, G. R. J., & Cowan, D. R. (2011). A generalized derivative operator for potential field data. Geophysical Prospecting, 59(1), 188-194.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Groundwater Investigation of Gadam town, Gombe State, Northeastern Nigeria |
| Country | : | Nigeria |
| Authors | : | DR. Mohammed Ali Garba |
|
: | 10.9790/0990-1101011022 |
Abstract: A resistivity survey was carried out in Gadam Kwami LGA, sheet 152MW between Latitude 10˚ 27'30" - 10˚30'30" and Longitude 11˚04'00" - 11˚07'00". Gombe state Northeastern Nigeria to study the groundwater potential such a depths, thickness, resistivity and sediment at which water can be obtained. The Geo-electrical method used in the survey is Vertical Electrical Sounding, with the aim of determining Groundwater potential. Fifteen (15) Vertical Electrical Sounding were conducted using Schlumberger configuration with a maximum electrode separation of AB/2 = 200m to determine location favorable for sitting of borehole. The VES data were subjected to an iteration software (WINRESIST) which shows that the area is compose of top soil soft clay, compacted clay, Arkosic sand and clayey sand........
[1]. Arabi, a., nur, a. & dewu, b. 2009. Hydro geo-electrical investigation in Gombe town and environs, northeastern Nigeria. Journal of Applied Sciences and Environmental Management, 13.
[2]. Carter, J. D., Barber, W. & Tait, E. A. 1963. The Geology of Parts of Adamawa, Bauchi and Bornu Provinces in North-eastern Nigeria: Explanation of 1: 250,000 Sheets No. 25, 36 and 47, the authority of the Federal Government of Nigeria.
[3]. Konikow, L.; Kendy, E. Groundwater depletion: A global problem. Hydrogeol. J. 2005, 13, 317-320.
[4]. Mohammed, A. G. and Ibrahim, A. ((2014). Geo-Electrical Data Analysis to Demarcate Groundwater Pocket Zones in Kaltungo and Environes, Northeastern Nigeria. Journal of Applied Geology and Geophysics (IOSR-JAGG) Vol 2, Issue 3. Pp 43-50.
[5]. Offodile, M. E. (1976) Review of the geology of the Cretacious Benue Valley.in Kogbe,C.A,Ed., Geology of Nigeria,Elizabethan Publishing Coy, Lagos 319-330.
- Citation
- Abstract
- Reference
- Full PDF
| Paper Type | : | Research Paper |
| Title | : | Determination Of Poisson's Ratio Of Surface Soils And Shallow Sediments Of Uyo And Environ From Seismic Compressional And Shear Wave Velocities |
| Country | : | Nigeria |
| Authors | : | Ubong E. Essien || Akaninyene O. Akankpo || Nyakno J. George || Emmanuel B. Umoren |
|
: | 10.9790/0990-1101012329 |
Abstract: Poisson's ratio σ has been effectively used in engineering, groundwater and hydrocarbon investigation.This research was conducted to determine the Poisson's ratio of topsoil using seismic refraction method in Uyo and environ, Southern Nigeria as an aid in determining the degree of stability of engineering foundation. The study area lies between latitudes 4045' and 5015' N and between longitudes 7o45' and 8o30' E in the Niger Delta region of southern Nigeria. The area is located in the Tertiary to Quaternary Coastal Plain Sands (CPS) and Alluvium environments of the Niger Delta region of southern Nigeria. A 24 - channel signal enhancement seismograph, geophones, sledge.......
Key Words: lithology, soil, Vp, Vs, seismic refraction, Uyo
[1]. Baughman, R. H., Shacklette, J. M., Zakhidov, A. A. and Stafstrom, S. (1998). Negative Poisson's Ratios as a Common Feature of Cubic Metals. Nature, 392, 362-365.
[2]. Bhagat, S. S., Bass, J. D. and Smyth, J. R. (1992). Single-crystal elastic properties of omphacite-C2/c by Brillouin spectroscopy, J. Geophys. Res., 97, 6843 – 6848.
[3]. David, H., Nicholas, E. T. and Mark, A. P. (2019). The Variation and Visualisation of Elastic Anisotropy in Rock Forming Minerals, Solid Earth Discussions, 168, 1-47.
[4]. Emujakporue, G. O., and Ekine, A. S. (2009). Determination of Rocks Elastic Constants from Compressional and Shear Wave Velocities for Western Niger Delta, Nigeria. Journal of Applied Science and Environmental Management, 13, 53-55. https://doi.org/10.4314/jasem.v13i3.55364
[5]. Essien, U. E., Akankpo, A. O. and Igboekwe, M. U. (2014): Poisson's Ratio of Surface and Shallow Sediments Determined from Seismic Compressional and Shear Wave Velocities. International Journal of Geosciences, 5: 1540-1546