scholarly journals Determination of Curie Point Depth, Heat Flow and Geothermal Gradient from High Resolution Aeromagnetic Data around Lamurde Area, Adamawa State, North-Eastern Nigeria

2019 ◽  
Vol 09 (11) ◽  
pp. 829-838
Author(s):  
S. Kasidi
Keyword(s):  
High Resolution ◽  
Heat Flow ◽  
Curie Point ◽  
Geothermal Gradient ◽  
Curie Point Depth ◽  
Aeromagnetic Data ◽  
North Eastern

INVESTIGATION OF GEOTHERMAL ENERGY POTENTIAL OF PARTS OF CENTRAL AND NORTH-EASTERN NIGERIA USING SPECTRAL ANALYSIS TECHNIQUE

2020 ◽  
Vol 4 (2) ◽  
pp. 627-638
Author(s):  
Idena Odidi ◽  
A. Mallam ◽  
N. Nasir
Keyword(s):  
Spectral Analysis ◽  
Heat Flow ◽  
Curie Point ◽  
Hot Spring ◽  
Geothermal Gradient ◽  
Mean Value ◽  
Curie Point Depth ◽  
Aeromagnetic Data ◽  
Benue Trough ◽  
North Eastern

The current study deals with an estimate of the Curie point depth, heat flow and geothermal gradient from spectral analysis of aeromagnetic data covering an area located approximately between latitude 7.5o N to 11.5o N and longitude 7.5o E to 10.5o E, which corresponds to parts of the Benue trough (lower part of the Upper Benue trough, the entire middle Benue trough, and upper part of the Lower Benue trough), lower part of the Gongola and Yola Basins, the Precambrian Basement, the Jurassic Younger Granites and two prominent hot Springs, Wiki hot spring in Bauchi state (in the north-eastern part) and Akiri hot spring in Nasarawa state (in the south-western part) of central and north-eastern Nigeria. Radially power spectrum was applied to the aeromagnetic data of the study area divided into 48 square blocks and each block analysed using the spectral centroid method to obtain depth to the top, centroid and bottom of magnetic sources. The depth values were subsequently used to evaluate the Curie-point depth (CPD), geothermal gradient and near-surface heat flow in the study area. The values of the curie point depths (Zb), range from 7.6341 km to 34.5158 km, with a mean value of 14.7928km, geothermal gradient, range from 16.8039 0C km-1 to 75.97490C km-1, with mean value of 45.7021 0C km-1 and heat flow (q), range from 42.0097 mWm-2 to 189.9372mWm-2, with a mean value of 114.2554mWm-2. Which reveals that, there might probably be good sources for geothermal and thereby further recommended for detailed geothermal exploration.

Curie point depth, heat flow and geothermal gradient maps of Egypt deduced from aeromagnetic data

2018 ◽  
Vol 91 ◽  
pp. 620-629 ◽  
Author(s):  
S. Elbarbary ◽  
M. Abdel Zaher ◽  
H. Mesbah ◽  
A. El-Shahat ◽  
A. Embaby
Keyword(s):  
Heat Flow ◽  
Curie Point ◽  
Geothermal Gradient ◽  
Curie Point Depth ◽  
Aeromagnetic Data

scholarly journals Determination of The Curie Point Depth, Thermal Gradient and Heat Flow of Parts of Central And North-Eastern Nigeria Using Spectral Analysis Technique

2020 ◽  
Author(s):  
George Idena Odidi ◽  
Abu Mallam ◽  
Naeem Nasir
Keyword(s):  
Heat Flow ◽  
Curie Point ◽  
Geothermal Gradient ◽  
Mean Value ◽  
Centroid Method ◽  
Geothermal Resources ◽  
Analysis Technique ◽  
North Eastern ◽  
Data Points

Abstract Radially power spectrum was applied to the aeromagnetic data covering an area 36,300km2 and bounded by latitudes 7.5o N and 11.5o N and longitudes 7.5o E and 10.5o E., divided into 35 square blocks (with 50% overlapping and approximately 64 by 64 data points) and each block analysed using the spectral centroid method to obtain depth to the top, centroid and bottom of magnetic sources. The result shows that the curie point depths, range from 17.711km to 34.34km, with a mean value of 26.21km, geothermal gradient, range from 16.89 0C km-1 to 32.75 0C km-1, with a mean value of 22.83 0C km-1 and heat flow, range from 42.22 mWm-2 to 81.87 mWm-2, with a mean value of 57.07 mWm-2. These results correlate with the existing geothermal and geo-tectonic signatures of the area. Hence, the possibility of the existence of geothermal resources in the study area and its possible exploration is not far fetch.

scholarly journals Determination of Hydro Geological and Petroleum Potential Using High Resolution Aeromagnetic Data, Over Matsina and Environs, Part of Nigerian Sector of Chad Basin, North Eastern Nigeria

2019 ◽  
pp. 1-12
Author(s):  
S. Kasidi ◽  
S. N. Yusuf
Keyword(s):  
High Resolution ◽  
Ground Water ◽  
Two Dimensional ◽  
Oil Exploration ◽  
Aeromagnetic Data ◽  
Spectral Analyses ◽  
Petroleum Potential ◽  
Chad Basin ◽  
North Eastern

Two dimensional spectral analyses of high resolution aeromagnetic data was carried out over matsina and environs North Eastern Nigeria to determine hydrocarbon and groundwater potentials. The analysis was done using Oasis Montaj version 8.2. The result obtained indicates the existence of two source depths. The shallower magnetic sources varies between 0.35 to 0.55 m and deeper magnetic sources also varies between 0.6 to 2000 m. The shallower magnetic sources could be as a result of basic intrusive within the Borno Basin, while the deeper sources correspond to the basement topography underlying the Chad formation. Comparing the result with what was obtained in Gubio, Maiduguri sub basin, it is apparent that the sedimentary thickness over Matsina and and Environs cannot be a potential site for oil exploration rather for ground water exploration.

scholarly journals Estimation of Geothermal Gradient and Heat Flow for Determination of Geothermal Energy Sources in Monguno Area of Northeastern Nigeria

2019 ◽  
pp. 1-8
Author(s):  
B. C. Udochukwu ◽  
M. Akiishi ◽  
A. A. Tyovenda
Keyword(s):  
Heat Flow ◽  
Curie Point ◽  
Geothermal Energy ◽  
Geothermal Gradient ◽  
High Heat ◽  
Curie Point Depth ◽  
The South ◽  
Geothermal Resources ◽  
North East ◽  
Curie Depth

The aeromagnetic data of Monguno area northeastern Nigeria have been used to estimate Curie point depth, geothermal gradients and heat flow using spectral analysis. These geothermal parameters were subsequently employed to identify areas of geothermal resources. First order polynomial fitting was applied in Regional-residual separation. The Curie point depth obtained in this area ranges from 10.318 to 24.476 km with an average of 13.387 km, the geothermal gradient of the area varies from 23.697 to 56.212°C /km, with an average of 46.195°C /km, while the heat flow ranges from 59.242 to 136.176 mWm-2, with an average value of about 112.364 mWm-2. It was also observed that the deepest Curie depth in the area is identified in the south, while the shallow depth is located in the northeast and spread toward the southwest. On the other hand, the highest geothermal gradient in the area is identified in the northern part of Moguno, while in the south,                    the lowest, geothermal gradient is located. The highest heat flow in the area is seen in the south-west and north-east, while the lowest heat flow is observed in the south. The high heat flow and geothermal gradient in the area show that geothermal energy could be found in Monguno region of the northeastern Nigeria.

Sign in / Sign up

Export Citation Format

Share Document