Research Papers/Topics in Geophysics

An Investigation of Subsurface Structures for Construction Purpose in Makurdi, Using Electrical Resistivity Survey

ABSTRACT An electrical resistivity survey was carried out on site proposed for the construction of state secretariat office complex in Makurdi, Benue state, using vertical electrical sounding (VES) with Shlumberger electrode configuration. The soundings, which comprised of fifteen VES was done at three different locations to ascertain the suitability of the subsurface formations at the site for construction and to determine a suitable depth to which the foundation of the proposed buildings sh...

Aquifer Hydraulic Characteristics and Vulnerability Estimation from Vertical Electrical Sounding: Case Study of Oru and Environs, South-Eastern, Nigeria

ABSTRACT Aquifer Hydraulic Characteristics and Vulnerability Estimation from Vertical Electrical Sounding: A Case Study of Oru and its Environs, South-Eastern, Nigeria was carried out to delineate the different aquifer units with a view to determine the vulnerability of groundwater in the area. The study area is underlain by the Benin Formation which is within the Niger Delta Basin. Twenty-Seven (27) VES data were acquired using a Schlumberger array with a maximum electrode separation of AB/...

Petrography and Geochemistry of Granitoid Gneisses and Associated Rocks in Parts of the Suhum Basin, Ghana: Implications for Petro genesis and Tectonic Setting

ABSTRACT The Paleoproterozoic Birimian rocks within the Nsawam, Suhum and Koforidua enclave of the Suhum basin have been analyzed for their major and trace element concentrations and mineral chemistry. Twenty-nine (29) thin sections were prepared for petrographic studies. Twenty-five (29) samples were analysed for their major and trace elements contents and twenty-four (24) samples were analyzed for the mineral chemistry of selected phases. Based on the petrography, the geology of the area i...

The Physics of the Earth and its Environment in Space

Geophysics is the physics of the Earth and its environment in space; also the study of the Earth using quantitative physical methods. The term geophysics sometimes refers only to the geological applications: Earth's shape; its gravitational and magnetic fields; its internal structure and composition; its dynamics and their surface expression in plate tectonics, the generation of magmas, volcanism and rock formation. (Bozorgnia, 2004). However, modern geophysics organizations use a broader def...

The Hydraulic Characteristics Of Mbano And Environs, Imo River Basin, Nigeria Using Geoelectric Data

ABSTRACT Hydro-geophysical study of Mbano and environs, Southeastern Nigeria was carried out with the objective of estimating aquifer hydraulic parameters from resistivity data. Thirty-six (36) vertical electrical resistivity (VES) sounding data using the Schlumberger array were acquired with a maximum current electrode spread of 1000m using the ABEM Terrameter SAS 4000. Out of the thirty-six (36) VES soundings, fourteen (14) parametric soundings were carried out at the locations of existing...

Interpretation Of Aeromagnetic And Landsatetm+ Data Over Part Of The Younger Granite Complex, Nigeria: Implication For Geothermal Exploration

ABSTRACT Structural interpretation of Younger Granite complex of northern Nigeria using aeromagnetic and Landsat imagery was carried out to determine the depth to the magnetic basement, delineate the basement morphology and relief, delineate the structural features associated with the basin and to infer the influence of such structures on mineralization in the study area. Also, this study is aimed at determining the geothermal potentials of the area. The application of directional edge enhan...

Application Of Deterministic And Stochastic Analysis Of Fault Seal Integrity In Baka Field, Niger Delta.

ABSTRACT Fault seal analysis in fault dependent reservoirs were carried out at different reservoir levels in the Baka Field, Niger Delta. These involved stratigraphic correlation, 3-D seismic interpretation of faults and horizons, time-depth conversion of all interpreted faults and structural maps using both check-shot and synthetic seismogram. Also, static models of all interpreted reservoir levels, and 3-D deterministic and stochastic fault seal integrity models were carried out. The deter...

3d Seismic Interpretation Of Shallow Marine In “Dabra Area” Offshore Niger Delta

ABSTRACT The thrust of the study which carried out in the Cenozoic Niger Delta is to infer and predict potential Petrophysical properties and hydrocarbon presence in unexplored areas proximal to producing areas in the eastern flank of Cenozoic Niger Delta, Nigeria, using seismic data and analogue proximal well data set from a producing area for subsurface reservoir characterization. Seismic and offset well dataset were used as input dataset to carry out Petrophysical evaluation, Seismic inte...

3-D Seismic Attributes Analysis And Reserve Estimation Of “Guramala Field”, Coastal Swamp Depobelt, Niger Delta.

ABSTRACT An integrated seismic interpretation using 3-D seismic data, check shot data and a suite of well logs for four wells were analyzed with the Petrel (seismic to simulation software). The objectives were to carry out a detailed formation evaluation, reservoir characterisation and a 3-D assisted structural interpretation of the densely faulted oil field in the coastal depo-belt of the Niger Delta. RMS amplitude, instantaneous frequency map and interval average extraction maps were extra...

Geophysical Investigation For Groundwater Potential Evaluation Of A Regolith Aquifer In A Typical Basement Complex Terrain; A Case Study Of Ikole Ekiti, Southwestern, Nigeria.

ABSTRACT A geophysical investigation involving the electrical resistivity method was carried out at IkoleEkiti of South Western, Nigeria with the main aim of investigating the area for groundwater potential of the regolith aquifer. The objectives are to identify geological structures and aquifers favorable to groundwater accumulation andalso input geoelectric layers parameters into a software to produce maps of the subsurface in order todetermine the groundwater potential of the regolith aqu...

Geo-Electric Soundings For Groundwater Exploration In Part Of Port Harcourt, Rivers State, South-Eastern Nigeria

ABSTRACT Groundwater is the water that exists in pore spaces and fractures in rocks and sediments beneath the water table. The need for groundwater has increased tremendously due to the unavailability and the contamination of surface water bodies by the intrusion of saline water and human activities. · The geo-electric soundings were carried out in Eleme Port Harcourt, capital of Rivers state in order to delineate the subsurface geo-electric layers and the depth to the aquifer unit for grou...

Integrated Geophysics Methods For Post Foundation Student Phase One, Faculty Of Social Science And Humanities, Federal University Oye Ekiti, Ekiti State

ABSTRACT A combined geophysical method involving very low electromagnetic method. magnetics and electrical resistivity methods were used in delineating the causes of crack in the building at Faculty of social Science and Humanities Oye Ekiti, Ekiti, State. Five (5) VLF-EM traverses were established in both east-west direction and also north-south direction were occupied in the building and Twenty-one (21) VES studies were also occupied around the building. The VLF-EM helped in the ident...

Fault-magma interactions during early continental rifting: Seismicity of the Magadi-Natron-Manyara basins, Africa

Abstract Although magmatism may occur during the earliest stages of continental rifting, its role in strain accommodation remains weakly constrained by largely 2-D studies. We analyze seismicity data from a 13 month, 39-station broadband seismic array to determine the role of magma intrusion on state-of-stress and strain localization, and their along-strike variations. Precise earthquake locations using cluster analyses and a new 3-D velocity model reveal lower crustal earthquakes beneath th...

Interpolation Of Spot Heights In Seloum Dry Port

Abstract Leveling is a branch of surveying and one of its targets to find out the topography of earth surface, more over it is required in the setting out of all kinds of engineering works. Creation of Dry ports are to help costal ports and they need to be interconnecting by road and rail infrastructure. Planning and design of Dry ports as large area are looks like container ports at system and aspects. Apprehensible of interpolation deals with knowing or telling what is going to happen, o...

Primary Health Service Distribution in Urban Areas Using GIS

Dealt with the subject of the study through spatial distribution of the governmental health centers, for understanding its relationship with the numbersof population, health outcomes and access, in light of rapid urbanization  worldwide. The crisis in the health sector of Sudan has seen very obvious since the last decade, particularly in Bahri locality. It turns out the requires of appropriate infrastructure because of lack of attention to proper and suitable planning for the distribut...


1 - 15 Of 27 Results