February 2018

Interpretation of aeromagnetic data over some parts of Mambilla Plateau, Taraba State

The data covering Mayo Daga and Gashaka areas of Taraba State has been interpreted by applying source parameter imaging (SPI) and forward and inverse modeling methods. From the quantitative method of interpretation, it was found out that the magnetic intensity within the study area ranges from -129.9 to 186.6 nT in which the area is noticeably marked by both low and high magnetic signatures which may be as a result of...

Author(s): YAKUBU John Akor, ILEAGU Immaculate Ukamaka and IGWE Emmanuel Awucha  

February 2018

Improvement of the homotopy perturbation method to nonlinear problems

This paper proposes an effective improvement of the homotopy perturbation method (HPM) by using Jacobi and He's polynomials to solve some nonlinear ordinary differential equations. With this method, the source terms of ordinary differential equations can be expanded in series of shifted Jacobi polynomials. Numerical results are given in this paper to illustrate the reliability of this method with nonlinear ordinary...

Author(s): J. F. Alzaidi and A. A. Alderremy  

February 2018

Investigation of gravity anomalies in parts of Niger Delta Region in Nigeria using aerogravity data

Gravity anomalies in parts of the Niger Delta region, Nigeria, were investigated through the interpretation of aerogarvity data with the objectives to determine the thickness of the sedimentary basin, establish the basement topography, density contrasts and the geological models which will give information about variation of geological structures. Four sheets of digital airborne gravity data were used for the...

Author(s): Ekpa M. M. M., Okeke F. N., Ibuot J. C., Obiora D. N. and Abangwu U. J.