International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2528

Full Length Research Paper

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

YAKUBU John Akor
  • YAKUBU John Akor
  • Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria.
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ILEAGU Immaculate Ukamaka
  • ILEAGU Immaculate Ukamaka
  • Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria.
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IGWE Emmanuel Awucha
  • IGWE Emmanuel Awucha
  • Department of Physics and Astronomy, University of Nigeria, Nsukka, Nigeria.
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  •  Received: 26 October 2017
  •  Accepted: 07 December 2017
  •  Published: 28 February 2018

Abstract

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 several factors such as; susceptibility, degree of strike, difference in magnetic variation in depth and difference in lithology. From the quantitative interpretation, depth estimates obtained when SPI is employed shown minimum to maximum depth to anomalous source that ranges from 400.7 to 2119.2 m. Forward and inverse modeling estimated depths for profiles P1, P2, P3, and P4 were 2372, 2537, 1621 and 1586 m, respectively, with susceptibility values of 0.0754, 0.0251, 0.0028, and  0.001 respectively,  suggesting that the bodies causing the anomaly are typical of igneous rocks; basalt and olivine, intermediate igneous rock; granites, and rocks mineral (quartz).

Key words: Aeromagnetic data, source parameter imaging (SPI), qualitative and quantitative interpretation