Angular Spectral Analysis and Lowpass Filtering of Aeromagnetic Data Over Western Parts of Bornu Basin of Nigeria

Sanusi, Yusuf Abubakar; Likkason, O. K.

doi:10.4314/njbas.v24i2.11

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…The method is applied to enhance long wavelength anomalies associated with deep-seated structures at the expense of short wavelength anomalies associated with shallow bodies. The upward continuation filter is expressed as (Sanusi and Likkason, 2016)…”

Section: Upward Continuationmentioning

confidence: 99%

Analysis and interpretation of high resolution aeromagnetic data over Kabo town and its adjoining areas, in Northwestern Nigeria

Suleiman¹,

Aku²,

Sanusi³

2019

Bayero J. Pure App. Sci.

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INTRODUCTION Geophysics is a subject of natural science is concerned with the physical processes and physical properties of the Earth and its surrounding space environment using the physics principles to the study of the earth's interior. It is therefore a threeof the principles of Physics to the Earth, Moon and Planets (Reynolds, Geophysics is applied to societal needs, such as mineral resources, mitigation of natural hazards and environmental protection. Geophysical survey data are used to analyze potential petroleum reservo deposits, locate groundwater and it also plays an essential role in the development of the theory of plate tectonics. The Earth acts like a large spherical magnet: it is surrounded by a magnetic field that changes with time and location. The field is generated by a dipole magnet (i.e., a straight magnet with a North and South Pole) located at the center of the Earth. The magnetic fields of geological bodies are superimposed on the background of the Earth's main field. Variations in magnitude and direction of this field influence both the magnitudes and shapes of local anomalies. The purpose of magnetic surveying is to identify and describe regions of the earth's crust that have unusual (anomalous)

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Section: Upward Continuationmentioning

confidence: 99%

Analysis and interpretation of high resolution aeromagnetic data over Kabo town and its adjoining areas, in Northwestern Nigeria

Suleiman¹,

Aku²,

Sanusi³

2019

Bayero J. Pure App. Sci.

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Determination of hydrocarbon potentials in Masu area northeastern Nigeria using forward and inverse modeling of aeromagnetic and aerogravity data

2019

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Aeromagnetic and aerogravity data covering Masu area, which lies within latitudes 12°00′ to 13°00′ North and longitudes 12°30′ to 14°00′ East in Nigerian sector of Chad Basin have been interpreted qualitatively and quantitatively. Regionalresidual separation was carried out by applying polynomial fitting (first order), which was fitted by least square method. First order was used because it is the best regional fit for our data as it reflected the available geological information of the area. The residual values of both magnetic and Bouguer anomalies obtained were used to produce the residual magnetic intensity and residual gravity maps respectively. These maps show intrusive basement rocks in the eastern part of Masu. The forward and inverse of aeromagnetic data modeling estimated basement depths for profiles P1 and P2 were 4300 and 1195 m, with respective magnetic susceptibility values of 0.0003 and 0.0250, which indicate minerals like limestone and marble. Similarly, the estimated basement depths from the forward and inverse of aerogravity data modeling are 6524 and 4312 m for P1 and P2 with density contrasts of 0.72 and 0.255 g/cm 3 . The results from this work indicate that the area has some geologic features suitable for hydrocarbon and mineral deposits. Hence, further geophysical researches need to be carried out to ascertain the type of minerals existing in the area.Keywords Aeromagnetic and aerogravity data · Masu · Nigeria · Chad basin · Hydrocarbon potentials · Mineral deposit · Forward and inverse modeling

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Angular Spectral Analysis and Lowpass Filtering of Aeromagnetic Data Over Western Parts of Bornu Basin of Nigeria

Cited by 2 publications

References 8 publications

Analysis and interpretation of high resolution aeromagnetic data over Kabo town and its adjoining areas, in Northwestern Nigeria

Analysis and interpretation of high resolution aeromagnetic data over Kabo town and its adjoining areas, in Northwestern Nigeria

Determination of hydrocarbon potentials in Masu area northeastern Nigeria using forward and inverse modeling of aeromagnetic and aerogravity data

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