SPECTRAL ANALYSIS AND INTERPRETATION OF AEROMAGNETIC ANOMALIES OVER SOKOTO BASIN, NIGERIA.

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dc.contributor.authorOGANIJA, SAMBO SHEHU
dc.date.accessioned2014-02-11T09:01:36Z
dc.date.available2014-02-11T09:01:36Z
dc.date.issued1994-01
dc.descriptionA thesis submitted to the Postgraduate School, Ahmadu Bello University, Zaria in partial fulfilment of the requirements for the award of the degree of Master of Science in Applied Geophysics.en_US
dc.description.abstractAeromagnetic data of the Sokoto Basin have been analysed by two-dimensional spectral analysis to determine the lateral variation in the Sedimentary thickness and structures under the basin. The area investigated cover the portion of the basin between latitude 10°30'N and 14°N, longitude 3°30'E and 6°30'E. Spectral depth determinations to magnetic sources in the region gave three depth ranges namely 0.11 km to 0.28 km, 0.50 km to 1.40 km and 0.79 km to 1.85 km. The depths varying between 0.11 km and 0.28 km refer to the contribution by the near surface disturbances, while the deeper depth ranges varying between 0.50 km and 1.40 km refer to a magnetic level corresponding to the basement surface. The depth ranging between 0.79 km an 1.85 km may correspond to the top of structures within the basement. A magnetic depth to basement map revealed that the basement surface is generally shallow and attain a maximum depth of 1.40 km at the centre of the basin. In general, the magnetic data revealed an irregular basement floor resulting from gentle folding of the basement rocks along a general N-S axis. Sediment-filled troughs and depressions on the basement surface have been revealed and these form targets for ground water exploration. The absence of major faulting even at the sediment-basement boundary tend to suggest that the Southeastern sector of the Iullemmeden Basin probably originated from the tectonic movement within the Precambrian basement rocks.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1014
dc.language.isoenen_US
dc.subjectSPECTRALen_US
dc.subjectANALYSISen_US
dc.subjectINTERPRETATIONen_US
dc.subjectAEROMAGNETICen_US
dc.subjectANOMALIESen_US
dc.subjectOVERen_US
dc.subjectSOKOTOen_US
dc.subjectBASINen_US
dc.subjectNIGERIAen_US
dc.titleSPECTRAL ANALYSIS AND INTERPRETATION OF AEROMAGNETIC ANOMALIES OVER SOKOTO BASIN, NIGERIA.en_US
dc.typeThesisen_US
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