Assessment of Aero-radiometric Data of Southern Anambra Basin for the Prospect of Radiogenic Heat Production

Olorunsola, Kuforijimi; Aigbogun, Christopher

doi:10.4314/jasem.v21i4.15

Cited by 3 publications

(4 citation statements)

References 5 publications

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“…On the radiometric survey, Kuforijimi and Christopher [25] carried out an assessment of Aero-radiometric data of Southern Anambra Basin for the prospect of Radiogenic Heat Production.…”

Section: Previous Work On Magnetic and Radiometric Methods Of Geophysical Surveymentioning

confidence: 99%

“…Kuforijimi and Christopher [25] correlated and mapped geothermal and radioactive heat production from the Anambra Basin, Nigeria. They studied area of latitudes 6°00'N and 7°30'N and longitudes 6°30'E and 9°00'E.…”

Section: Previous Work On Combined Magnetic and Radiometric Methodsmentioning

confidence: 99%

“…the authors were able to identify some areas which they classified as hotspot for geothermal energy. Kuforijimi and Christopher [25] and Megwara, et al [1] integrated magnetic and radiometric methods and found some areas with high geothermal gradient coincided with high radiogenic production are recommended those areas for geothermal energy. Eze, et al [47] correlated areas with high analytical signal amplitude with the high concentration of radioelements, while Bassey and Barka [49] whose interest was to carry out lithology and structural mapping correlated so many lineaments maps of magnetic and radiometric as highlighted in this work.…”

Section: Previous Work On Combined Magnetic and Radiometric Methodsmentioning

confidence: 99%

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Untitled

2020

Int J Earth Sci Geophys

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This paper focuses on the review of the magnetic and radiometric methods of geophysical surveys in Nigeria. It evaluates the areas/regions covered, techniques adopted vis-à-vis different software used in the investigations, the results of the investigation, and also highlighted some recommendations from articles reviewed. From the review, the southeastern part of the country revealed maximum deeper depths of 2 km, 4.85 km and 7 km while the north central part of the country revealed maximum deeper depths ranges between 0.5 km, 5.66 km, 3.24 km and 2.4 km. Also, maximum depths of 2.11 km and 1.5 km were revealed in the Northwest as against 2.8 km and 3.6 km in the southwestern part of the country. From the radiometric method, the radiogenic heat production values in most parts of Nigeria fall within the range of 0.01 μWm -3 to 5.43 μWm -3 . Based on the overall results obtained from the mean concentration, internal and external hazards from the south-south and southwest of the country, it can be concluded that the soils in the areas are safe for use in constructing dwelling places in the regions. However, the coverage in this paper is by no means its entirety for the country. There is the need to carry out more of geophysical surveys on radiometric method in the northwestern part of the country, especially Sokoto Basin. It is therefore, the authors view that this paper would serve as a reference and stimulate interests in having more geophysical investigations focusing on the integration of these two methods with a view to covering some gaps in the field and pay attention to areas uncovered.

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“…On the radiometric survey, Kuforijimi and Christopher [25] carried out an assessment of Aero-radiometric data of Southern Anambra Basin for the prospect of Radiogenic Heat Production.…”

Section: Previous Work On Magnetic and Radiometric Methods Of Geophysical Surveymentioning

confidence: 99%

Section: Previous Work On Combined Magnetic and Radiometric Methodsmentioning

confidence: 99%

Section: Previous Work On Combined Magnetic and Radiometric Methodsmentioning

confidence: 99%

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Untitled

2020

Int J Earth Sci Geophys

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“…in an aeroradiometric study carried-out by Adunu et al (2022) on Makurdi, Gboko, Kastina-Ala and Akwana areas to delineate prominent radiometric anomalies for solid minerals, it was revealed that the highest radiometric mineralization area were identi ed as Katsina-Ala and Akwana. Assessment of Aero-radiometric data of Southern Anambra Basin for the prospect of radiogenic heat production by Kuforijimi and Christopher (2017), concludes that high concentration of uranium, potassium and thorium in Aimeke and Ogobia shows high potentiality for geothermal energy and radiogenic heat production. These areas should be exploited for geothermal energy.…”

Section: Introductionmentioning

confidence: 99%

Integrated Study of Central Nigeria Geology and Tremor Activities Using Air Borne Radiometric Data

Oyibo,

Aurelius,

Kadir

et al. 2023

Preprint

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To determine the true causes of earth tremors, high resolution maps created from aircraft radiometric datasets were utilized to illustrate the primary lithology and structural features found in the north-central Nigeria. A range of magnetic amplitudes was seen from the Total Magnetic Intensity. This implies that the underlying rocks are at various depths and have variable magnetic mineral contents depending on the type of rock unit. This is confirmed by generated concentration maps of percentage Uranium, Thorium (u/th)Uranium Potassium (u/k) and Thorium Potassium (th/k) these maps showed low to moderate and high concentration of radio-element. Thorium (0 < 6.4ppm to > 31.9ppm), potassium (0% to > 4.1%), uranium (1.14ppm to < 0.76ppm%). respectively in rocks covering the study area. These results revealed that the study area is geologically characterized by granite gneiss, porphyritic granite rock, felsic granitic rock, schist and migmatite gneiss. Thus, these observed changes in the Total Magnetic Intensity (TMI) map with a low to moderate concentration of the radio elements-identified suggest weathering and intense metamorphism, which could be regarded as unstable, allowing for transmission of seismic energy leading to tremor activities in the study area.

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