GEOPHYSICAL EXPLORATION FOR BURIED KAOLIN MINERAL NEAR KANKARA, KATSINA PROVINCE, KADUNA STATE, NIGERIA
GEOPHYSICAL EXPLORATION FOR BURIED KAOLIN MINERAL NEAR KANKARA, KATSINA PROVINCE, KADUNA STATE, NIGERIA
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Date
1977-05
Authors
EBIFEGHA, MICHAEL EBIPA
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Abstract
The results of a comprehensive geophysical study on a
prominent kaolin deposit near Kankara, Katsina Province,
Kaduna State, Nigeria, are discussed. The most appropriate
techniques and procedures to be deployed when exploring for
buried kaolin mineral of sporadic occurrence are outlined.
Electrical resistivity depth probe measurements
employing both colinear and square configurations were
utilized. The prevailing heterogeneities and the associated
gross orientational effects in the anomalous zone limit the
applicability of the collinear array sounding techniques in
the determination of depths to bedrock. The crossed square
sounding technique, which samples apparent resistivities in
four orientations, has proved the most efficient field
system in the delineation of the buried kaolin mineral
deposit by resistivity methods. The apparent measure of
electrical strike and vertical anisotropy as a function of
electrode spacing using the crossed square array technique
are obtained. Results of Wenner profiling are encouraging
in the detection of near surface geological structure. X
The gravity methods has proved a useful tool in
mirroring the anomalous zones and in the assessment of the
reserves of the concealed kaolin deposits.
The top layer structure was best delineated by the
seismic refraction method; bedrock topography could not
however be determined successfully.
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GEOPHYSICAL EXPLORATION FOR BURIED KAOLIN MINERAL NEAR KANKARA, KATSINA PROVINCE, KADUNA STATE, NIGERIA, GEOPHYSICAL EXPLORATION FOR BURIED KAOLIN MINERAL NEAR KANKARA, KATSINA PROVINCE, KADUNA STATE, NIGERIA