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Solid Mineral Potential and Geothermal Energy Reserve of Northern Basement Complex, Nigeria Cover

Solid Mineral Potential and Geothermal Energy Reserve of Northern Basement Complex, Nigeria

Open Access
|Aug 2023

Figures & Tables

Figure 1

Geologic map of the study area.
Geologic map of the study area.

Figure 2

Aeromagnetic field over the study area as a color-shaded, contoured map.
Aeromagnetic field over the study area as a color-shaded, contoured map.

Figure 3

Color-coded pixel contour map of the total magnetic field of the study area in gammas.
Color-coded pixel contour map of the total magnetic field of the study area in gammas.

Figure 4

3-D surface map of the total magnetic field of the study area in gammas.
3-D surface map of the total magnetic field of the study area in gammas.

Figure 5

(a) High-pass filter, (b) low-pass filter, (c) band-pass filter, (d) non-linear filter map of the total magnetic field intensity of the study area.
(a) High-pass filter, (b) low-pass filter, (c) band-pass filter, (d) non-linear filter map of the total magnetic field intensity of the study area.

Figure 6

(a) First-degree residual, (b) second-degree residual, (c) third-degree residual, (d) fourth-degree residual field over the study area as a color-shaded contour map.
(a) First-degree residual, (b) second-degree residual, (c) third-degree residual, (d) fourth-degree residual field over the study area as a color-shaded contour map.

Figure 7

Reduction to equator of the aeromagnetic field over the study area as a color-shaded, contoured map.
Reduction to equator of the aeromagnetic field over the study area as a color-shaded, contoured map.

Figure 8

Horizontal gradient of the aeromagnetic field over the study area as a color-shaded, contoured map.
Horizontal gradient of the aeromagnetic field over the study area as a color-shaded, contoured map.

Figure 9

Lineament map of study area.
Lineament map of study area.

Figure 10

(a) D1 values (shallow magnetic basement depths) and (b) D2 (basement depths across the study area).
(a) D1 values (shallow magnetic basement depths) and (b) D2 (basement depths across the study area).

Figure 11

Plot of the geothermal gradient of the study area.
Plot of the geothermal gradient of the study area.

Figure 12

Plot of the heat flow.
Plot of the heat flow.

Figure 13

3D Euler deconvolution depth solutions of the study area: (a) structural index = 0, (b) structural index = 1, (c) structural index = 2, (d) structural index = 3.
3D Euler deconvolution depth solutions of the study area: (a) structural index = 0, (b) structural index = 1, (c) structural index = 2, (d) structural index = 3.

Computed spectral depths in km according to sheets_

SheetsSpectra L BlockLongitudeLatitudeDepth (km)
X1X2Y1Y2D1D2
Kachia137.507.759.7510.000.1361.851
147.758.009.7510.000.1381.999
97.507.759.50  9.750.1361.655
107.758.009.50  9.750.1361.657
158.008.259.7510.000.1361.756
Kafanchan168.258.509.7510.000.1351.871
118.008.259.50  9.750.1361.810
128.258.509.50  9.750.1351.784
  57.507.759.25  9.500.1361.616
Gitata  67.758.009.25  9.500.1361.864
  17.507.759.00  9.250.1361.660
  27.758.009.00  9.250.2011.618
  78.008.259.25  9.500.1361.934
Jema’a  88.258.509.25  9.500.1361.770
  38.008.259.00  9.250.1361.585
  48.258.509.00  9.250.1362.021

Computed spectral depth, Curie temperature and heat flow_

Longitude Latitude CPD (km)Geothermal Gradient (°Ckm-1)Heat Flow (mWm-2)
SPECTRAL LINESX1X2Y1Y2ZtZOZbdT/dZq
17.507.759.00  9.251.66014.35427.04821.4433653.6084
27.758.009.00  9.251.61815.42629.2341449.5997
38.008.259.00  9.251.58514.28626.98721.4918353.7296
48.258.509.00  9.252.02212.95023.87824.290160.7253
57.507.759.25  9.501.61613.98026.34422.0163955.0409
67.758.009.25  9.501.86512.62023.37524.8128362.0321
78.008.259.25  9.501.93412.12022.30626.0019765.0049
88.258.509.25  9.501.77012.34022.9125.3164663.2912
97.507.759.50  9.751.65512.73423.81324.3564460.8911
107.758.009.50  9.751.65714.32026.98321.4950153.7375
118.008.259.50  9.751.81114.24026.66921.7480954.3702
128.258.509.50  9.751.78413.98026.17622.1577055.3943
137.507.759.7510.001.85113.41024.96923.2288058.072
147.758.009.7510.001.999613.51025.020423.1810857.9527
158.008.259.7510.001.75613.72025.68422.5821556.4553
168.258.509.7510.001.87113.34024.80923.3786158.4465

Computed spectral depths_

PortionsDepth 1 (m)Depth 2 (m)
1136.341659.50
2200.531618.28
3135.851585.18
4136.152021.74
5136.371615.90
6136.361864.81
7136.411933.89
8136.391770.43
9136.361655.05
10136.341657.43
11136.301810.54
12135.981784.44
13136.421850.81
14138.171999.46
15135.501756.11
16135.611871.02
Language: English
Page range: 85 - 103
Submitted on: Apr 17, 2022
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Accepted on: Jun 3, 2022
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Published on: Aug 28, 2023
Published by: Sciendo
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2023 Okechukwu Stephen Ifeanyi, Opara Alexander Ifeanyichukwu, Chikezie Peter Chidozie, Akaolisa Chukwuemeka Casmir, Okoli Austin Emeka, Agoha Chidebere Charles, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.