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Spatial Resistivity Mapping of Ureje Dam Floor, Southwestern Nigeria

J.O. Fatoba

J.O. Fatoba

Dept. of Geophysics, Federal University Oye-EkitiNigeria
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Fatoba, J.O.
, 
A.B. Eluwole

A.B. Eluwole

Dept. of Geophysics, Federal University Oye-EkitiNigeria
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Eluwole, A.B.
, 
O.A. Sanuade

O.A. Sanuade

King Fahd University of Petroleum and Minerals
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Sanuade, O.A.
 and 
M.T. Aroyehun

M.T. Aroyehun

Dept. of Geophysics, Federal University Oye-EkitiNigeria
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Aroyehun, M.T.
  
Jun 15, 2020
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Article Category: Original scientific paper
Published Online: Jun 15, 2020
Page range: 245 - 255
Received: Jun 22, 2019
Accepted: Dec 18, 2019
DOI: https://doi.org/10.2478/rmzmag-2019-0025
Keywords
© 2019 Fatoba J.O. et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Figure 1

Location Map of the Study Area.
Location Map of the Study Area.

Figure 2

Geological Map of the Area Around Ado-Ekiti Showing the Ureje Dam site (After [20]).
Geological Map of the Area Around Ado-Ekiti Showing the Ureje Dam site (After [20]).

Figure 3

Geophysical Data Acquisition Map.
Geophysical Data Acquisition Map.

Figure 4

Typical Depth Sounding Curves. (a) A – Type, (b) K – Type, (c) KH – Type and (d) KHA – Type.
Typical Depth Sounding Curves. (a) A – Type, (b) K – Type, (c) KH – Type and (d) KHA – Type.

Figure 5

Geoelectric Sections Beneath the Dam Floor (a) Section A – B (b) Section C – D, (c) Section E – F.
Geoelectric Sections Beneath the Dam Floor (a) Section A – B (b) Section C – D, (c) Section E – F.

Figure 6

Spatial Vulnerability Assessment from Thickness of Suspended Materials.
Spatial Vulnerability Assessment from Thickness of Suspended Materials.

Figure 7

Spatial Vulnerability Assessment from Resistivity of Weathered Layer.
Spatial Vulnerability Assessment from Resistivity of Weathered Layer.

Figure 8

Spatial Vulnerability Assessment from Presence of Near-surface Clay Substratum.
Spatial Vulnerability Assessment from Presence of Near-surface Clay Substratum.

Figure 9

Cumulative Spatial Vulnerability Map.
Cumulative Spatial Vulnerability Map.

Colour Chart of the Distribution of the Depth Sounding Curves_

VES LOCATIONSKEY
11019p1 > p2 > p3= A-Type Curve
21120p1 〈 p2 〉 p3= K-Type Curve
31221p1 〈 p2 〉 p3p4= KH-Type Curve
41322p1 〈 p2 〉 p3 < p4 < p5= KHA-Type Curve
51423
61524
71625
817
918
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