TWO-DIMENSIONAL GEOELECTRICAL RESISTIVITY IMAGING OF THE AHMADU BELLO UNIVERSITY TEACHING HOSPITAL (ABUTH) PREMISES, SHIKA, ZARIA, NIGERIA

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dc.contributor.authorINICHINBIA, SONNY
dc.date.accessioned2014-03-06T09:07:10Z
dc.date.available2014-03-06T09:07:10Z
dc.date.issued2007-12
dc.descriptionBEING A RESEARCH THESIS SUBMITTED TO THE POSTGRADUATE SCHOOL, AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER’S DEGREE (M. Sc.) IN APPLIED GEOPHYSICS. DEPARTMENT OF PHYSICS FACULTY OF SCIENCE AHMADU BELLO UNIVERSITY, ZARIA, NIGERIA. DECEMBER, 2007en_US
dc.description.abstractThe Ahmadu Bello University Teaching Hospital (ABUTH) is located along Zaria- Funtua road, Shika, which is situated on the crystalline metamorphic rocks of the northern Nigerian Basement Complex. It lies between latitudes 11o 7/ N and 11o 24/ N and longitudes 7o 31/ E and 7o 50/ E and has an elevation of about 650 m – 700 m above mean sea level. The aim of this survey is to carry out a Two-Dimensional Geolectrical Resistivity Imaging of the subsurface in the area. The objectives of the survey were to determine the thickness of the overburden and the weathered basement, to resolve the overburden layering and to evaluate the groundwater potential of the area; thus characterizing the geologic setting at the surveyed area. A modern and state-of-the-art field instrument, the ABEM Automatic LUND Imaging System (Terrameter SAS 4000 and ES 464), produced by ABEM instrument AB, was used to accomplish this task. This uses multi-core cables with takeouts at 5 m intervals, having a total of 42 electrodes covering a spread of 200 m. Six profiles were covered and the data was processed to display the variations of electrical resistivities using the RES2DINV software. The results of this survey in correlation with borehole data revealed three distinct layers: the overburden which is about 16 m - 26 m thick having a resistivity range of about 194 Ωm – 1759 Ωm. The weathered basement which is appreciably thick (about 5 m – 14 m), is highly fractured and weathered, so constitutes a good aquifer having a resistivity range of about 0.687 Ωm – 678 Ωm. and the fresh crystalline basement having a resistivity of about 1223 Ωm. The fresh crystalline rock is at a variable depth of about 21 m - 40 m below the surface.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/3351
dc.language.isoenen_US
dc.subjectTWO-DIMENSIONALen_US
dc.subjectGEOELECTRICAL RESISTIVITY IMAGINGen_US
dc.subjectAHMADU BELLO UNIVERSITY TEACHING HOSPITAL (ABUTH)en_US
dc.subjectPREMISESen_US
dc.subjectSHIKAen_US
dc.subjectZARIAen_US
dc.subjectNIGERIAen_US
dc.titleTWO-DIMENSIONAL GEOELECTRICAL RESISTIVITY IMAGING OF THE AHMADU BELLO UNIVERSITY TEACHING HOSPITAL (ABUTH) PREMISES, SHIKA, ZARIA, NIGERIAen_US
dc.typeThesisen_US
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