The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies

Akeredolu Busuyi Emmanuel; Adiat Kola Abdul-Nafiu; Akinlalu Ayokunle Adewale; Olayanju Gbenga Moses

doi:doi:10.11648/j.earth.20221101.13

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The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies

Akeredolu Busuyi Emmanuel, Adiat Kola Abdul-Nafiu, Akinlalu Ayokunle Adewale, Olayanju Gbenga Moses

Published in Earth Sciences (Volume 11, Issue 1)

Received: 11 January 2022 Accepted: 7 February 2022 Published: 19 February 2022

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Abstract

Aeromagnetic data and Landsat image, were assessed to establish a relationship between morphostructural feature and borehole yield of a sub-basin of Osun basin in the Northern part of Ilesha, southwestern Nigeria. Four morphostructural factors (Geomorphological unit, Slope, regional structure, and lineament) were considered. Geomorphological units were classified based on digital elevation model (DEM), Lineaments were identified and extracted using edge detection technique, slope were generated from the digital data derived from Landsat imagery, and the regional structure were extracted using magnetic data filtering and enhancement techniques processes. The results of morphostructural features shows five (5) various geomorphic units; (Denudation hill, linear ridge, pediment inselberg complex, pediment and moderately weathered Pediplain) and four (4) main structural trends (NE-SW, NW-SE, ENE-WSW and E-W directions). The relationship between the morphostructural factors and borehole yield were assessed using spatial global autocorrelation and spearman rank correlation. Moran’s I global tests for dependence shows that geomorphological units, and regional structures were clustered given the z-scores of 2.46 and 1.99, p-values of 0.01 and 0.04, Moran’s I index value of 0.08 and 0.06 respectively. Likewise, borehole yield, lineament and slope were dispersed given the z-scores of 0.89, -0.43 and -1.15, p-values of 0.38, 0.66 and 0.25, Moran’s I index value of -0.06, -0.04 and -0.07 respectively. The Spearman’s rank correlation for the four independent variables (Geomorphological unit, Slope, Fracture, and Lineament) are statistically significant to the observed borehole yield, with correlation coefficients of -0.332, 0.137, -0.031, 0.200 respectively. The study concluded that slope and lineament are capable of favoring high borehole yield indicative of active surface recharge mechanism that is prominent in Schist belts and regional structures have little or no contribution to borehole yield in schist belts due to the influence of developed clayey filling resulting from the deep weathering processes.

Published in	Earth Sciences (Volume 11, Issue 1)
DOI	10.11648/j.earth.20221101.13
Page(s)	16-28
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Morphostructural Factors, Lineament, Borehole Yield, Moran’s Index

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Akeredolu Busuyi Emmanuel, Adiat Kola Abdul-Nafiu, Akinlalu Ayokunle Adewale, Olayanju Gbenga Moses. (2022). The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies. Earth Sciences, 11(1), 16-28. https://doi.org/10.11648/j.earth.20221101.13

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Akeredolu Busuyi Emmanuel; Adiat Kola Abdul-Nafiu; Akinlalu Ayokunle Adewale; Olayanju Gbenga Moses. The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies. Earth Sci. 2022, 11(1), 16-28. doi: 10.11648/j.earth.20221101.13

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Akeredolu Busuyi Emmanuel, Adiat Kola Abdul-Nafiu, Akinlalu Ayokunle Adewale, Olayanju Gbenga Moses. The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies. Earth Sci. 2022;11(1):16-28. doi: 10.11648/j.earth.20221101.13

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@article{10.11648/j.earth.20221101.13,
  author = {Akeredolu Busuyi Emmanuel and Adiat Kola Abdul-Nafiu and Akinlalu Ayokunle Adewale and Olayanju Gbenga Moses},
  title = {The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies},
  journal = {Earth Sciences},
  volume = {11},
  number = {1},
  pages = {16-28},
  doi = {10.11648/j.earth.20221101.13},
  url = {https://doi.org/10.11648/j.earth.20221101.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20221101.13},
  abstract = {Aeromagnetic data and Landsat image, were assessed to establish a relationship between morphostructural feature and borehole yield of a sub-basin of Osun basin in the Northern part of Ilesha, southwestern Nigeria. Four morphostructural factors (Geomorphological unit, Slope, regional structure, and lineament) were considered. Geomorphological units were classified based on digital elevation model (DEM), Lineaments were identified and extracted using edge detection technique, slope were generated from the digital data derived from Landsat imagery, and the regional structure were extracted using magnetic data filtering and enhancement techniques processes. The results of morphostructural features shows five (5) various geomorphic units; (Denudation hill, linear ridge, pediment inselberg complex, pediment and moderately weathered Pediplain) and four (4) main structural trends (NE-SW, NW-SE, ENE-WSW and E-W directions). The relationship between the morphostructural factors and borehole yield were assessed using spatial global autocorrelation and spearman rank correlation. Moran’s I global tests for dependence shows that geomorphological units, and regional structures were clustered given the z-scores of 2.46 and 1.99, p-values of 0.01 and 0.04, Moran’s I index value of 0.08 and 0.06 respectively. Likewise, borehole yield, lineament and slope were dispersed given the z-scores of 0.89, -0.43 and -1.15, p-values of 0.38, 0.66 and 0.25, Moran’s I index value of -0.06, -0.04 and -0.07 respectively. The Spearman’s rank correlation for the four independent variables (Geomorphological unit, Slope, Fracture, and Lineament) are statistically significant to the observed borehole yield, with correlation coefficients of -0.332, 0.137, -0.031, 0.200 respectively. The study concluded that slope and lineament are capable of favoring high borehole yield indicative of active surface recharge mechanism that is prominent in Schist belts and regional structures have little or no contribution to borehole yield in schist belts due to the influence of developed clayey filling resulting from the deep weathering processes.},
 year = {2022}
}

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TY  - JOUR
T1  - The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies
AU  - Akeredolu Busuyi Emmanuel
AU  - Adiat Kola Abdul-Nafiu
AU  - Akinlalu Ayokunle Adewale
AU  - Olayanju Gbenga Moses
Y1  - 2022/02/19
PY  - 2022
N1  - https://doi.org/10.11648/j.earth.20221101.13
DO  - 10.11648/j.earth.20221101.13
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 16
EP  - 28
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20221101.13
AB  - Aeromagnetic data and Landsat image, were assessed to establish a relationship between morphostructural feature and borehole yield of a sub-basin of Osun basin in the Northern part of Ilesha, southwestern Nigeria. Four morphostructural factors (Geomorphological unit, Slope, regional structure, and lineament) were considered. Geomorphological units were classified based on digital elevation model (DEM), Lineaments were identified and extracted using edge detection technique, slope were generated from the digital data derived from Landsat imagery, and the regional structure were extracted using magnetic data filtering and enhancement techniques processes. The results of morphostructural features shows five (5) various geomorphic units; (Denudation hill, linear ridge, pediment inselberg complex, pediment and moderately weathered Pediplain) and four (4) main structural trends (NE-SW, NW-SE, ENE-WSW and E-W directions). The relationship between the morphostructural factors and borehole yield were assessed using spatial global autocorrelation and spearman rank correlation. Moran’s I global tests for dependence shows that geomorphological units, and regional structures were clustered given the z-scores of 2.46 and 1.99, p-values of 0.01 and 0.04, Moran’s I index value of 0.08 and 0.06 respectively. Likewise, borehole yield, lineament and slope were dispersed given the z-scores of 0.89, -0.43 and -1.15, p-values of 0.38, 0.66 and 0.25, Moran’s I index value of -0.06, -0.04 and -0.07 respectively. The Spearman’s rank correlation for the four independent variables (Geomorphological unit, Slope, Fracture, and Lineament) are statistically significant to the observed borehole yield, with correlation coefficients of -0.332, 0.137, -0.031, 0.200 respectively. The study concluded that slope and lineament are capable of favoring high borehole yield indicative of active surface recharge mechanism that is prominent in Schist belts and regional structures have little or no contribution to borehole yield in schist belts due to the influence of developed clayey filling resulting from the deep weathering processes.
VL  - 11
IS  - 1
ER  -

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Author Information

Akeredolu Busuyi Emmanuel

Department of Applied Geophysics, Federal University of Technology, Akure, Nigeria
Adiat Kola Abdul-Nafiu

Department of Applied Geophysics, Federal University of Technology, Akure, Nigeria
Akinlalu Ayokunle Adewale

Department of Applied Geophysics, Federal University of Technology, Akure, Nigeria
Olayanju Gbenga Moses

Department of Applied Geophysics, Federal University of Technology, Akure, Nigeria

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Akeredolu Busuyi Emmanuel, Adiat Kola Abdul-Nafiu, Akinlalu Ayokunle Adewale, Olayanju Gbenga Moses. (2022). The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies. Earth Sciences, 11(1), 16-28. https://doi.org/10.11648/j.earth.20221101.13

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Akeredolu Busuyi Emmanuel; Adiat Kola Abdul-Nafiu; Akinlalu Ayokunle Adewale; Olayanju Gbenga Moses. The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies. Earth Sci. 2022, 11(1), 16-28. doi: 10.11648/j.earth.20221101.13

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Akeredolu Busuyi Emmanuel, Adiat Kola Abdul-Nafiu, Akinlalu Ayokunle Adewale, Olayanju Gbenga Moses. The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies. Earth Sci. 2022;11(1):16-28. doi: 10.11648/j.earth.20221101.13

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@article{10.11648/j.earth.20221101.13,
  author = {Akeredolu Busuyi Emmanuel and Adiat Kola Abdul-Nafiu and Akinlalu Ayokunle Adewale and Olayanju Gbenga Moses},
  title = {The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies},
  journal = {Earth Sciences},
  volume = {11},
  number = {1},
  pages = {16-28},
  doi = {10.11648/j.earth.20221101.13},
  url = {https://doi.org/10.11648/j.earth.20221101.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20221101.13},
  abstract = {Aeromagnetic data and Landsat image, were assessed to establish a relationship between morphostructural feature and borehole yield of a sub-basin of Osun basin in the Northern part of Ilesha, southwestern Nigeria. Four morphostructural factors (Geomorphological unit, Slope, regional structure, and lineament) were considered. Geomorphological units were classified based on digital elevation model (DEM), Lineaments were identified and extracted using edge detection technique, slope were generated from the digital data derived from Landsat imagery, and the regional structure were extracted using magnetic data filtering and enhancement techniques processes. The results of morphostructural features shows five (5) various geomorphic units; (Denudation hill, linear ridge, pediment inselberg complex, pediment and moderately weathered Pediplain) and four (4) main structural trends (NE-SW, NW-SE, ENE-WSW and E-W directions). The relationship between the morphostructural factors and borehole yield were assessed using spatial global autocorrelation and spearman rank correlation. Moran’s I global tests for dependence shows that geomorphological units, and regional structures were clustered given the z-scores of 2.46 and 1.99, p-values of 0.01 and 0.04, Moran’s I index value of 0.08 and 0.06 respectively. Likewise, borehole yield, lineament and slope were dispersed given the z-scores of 0.89, -0.43 and -1.15, p-values of 0.38, 0.66 and 0.25, Moran’s I index value of -0.06, -0.04 and -0.07 respectively. The Spearman’s rank correlation for the four independent variables (Geomorphological unit, Slope, Fracture, and Lineament) are statistically significant to the observed borehole yield, with correlation coefficients of -0.332, 0.137, -0.031, 0.200 respectively. The study concluded that slope and lineament are capable of favoring high borehole yield indicative of active surface recharge mechanism that is prominent in Schist belts and regional structures have little or no contribution to borehole yield in schist belts due to the influence of developed clayey filling resulting from the deep weathering processes.},
 year = {2022}
}

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TY  - JOUR
T1  - The Relationship Between Morpho-structural Features and Borehole Yield in Ilesha Schist Belt, Southwestern Nigeria: Results from Geophysical Studies
AU  - Akeredolu Busuyi Emmanuel
AU  - Adiat Kola Abdul-Nafiu
AU  - Akinlalu Ayokunle Adewale
AU  - Olayanju Gbenga Moses
Y1  - 2022/02/19
PY  - 2022
N1  - https://doi.org/10.11648/j.earth.20221101.13
DO  - 10.11648/j.earth.20221101.13
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 16
EP  - 28
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20221101.13
AB  - Aeromagnetic data and Landsat image, were assessed to establish a relationship between morphostructural feature and borehole yield of a sub-basin of Osun basin in the Northern part of Ilesha, southwestern Nigeria. Four morphostructural factors (Geomorphological unit, Slope, regional structure, and lineament) were considered. Geomorphological units were classified based on digital elevation model (DEM), Lineaments were identified and extracted using edge detection technique, slope were generated from the digital data derived from Landsat imagery, and the regional structure were extracted using magnetic data filtering and enhancement techniques processes. The results of morphostructural features shows five (5) various geomorphic units; (Denudation hill, linear ridge, pediment inselberg complex, pediment and moderately weathered Pediplain) and four (4) main structural trends (NE-SW, NW-SE, ENE-WSW and E-W directions). The relationship between the morphostructural factors and borehole yield were assessed using spatial global autocorrelation and spearman rank correlation. Moran’s I global tests for dependence shows that geomorphological units, and regional structures were clustered given the z-scores of 2.46 and 1.99, p-values of 0.01 and 0.04, Moran’s I index value of 0.08 and 0.06 respectively. Likewise, borehole yield, lineament and slope were dispersed given the z-scores of 0.89, -0.43 and -1.15, p-values of 0.38, 0.66 and 0.25, Moran’s I index value of -0.06, -0.04 and -0.07 respectively. The Spearman’s rank correlation for the four independent variables (Geomorphological unit, Slope, Fracture, and Lineament) are statistically significant to the observed borehole yield, with correlation coefficients of -0.332, 0.137, -0.031, 0.200 respectively. The study concluded that slope and lineament are capable of favoring high borehole yield indicative of active surface recharge mechanism that is prominent in Schist belts and regional structures have little or no contribution to borehole yield in schist belts due to the influence of developed clayey filling resulting from the deep weathering processes.
VL  - 11
IS  - 1
ER  -

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