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Retrospective appurtenance of Euler and Werner deconvolution contiguity for source depth excogitation of Bouguer anomalies in the Benue Trough, Nigeria

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Abstract

The leading cause of the glaring inexplicable errors in the accuracy of depth to anomaly assessments may be the technical challenge of the Euler deconvolution method from gravity surveys to perspicuously exhilarate the shape of major granitoid, tectonic lineaments, and local and regional fault systems without the existence of cogent correlative analytical simulation tools. That enigma becomes cumbersome with the increased existence of significantly incoherent density contrast between altered rocks or structures and their host rocks. That erudition aims to conduct a retrospective comparative analysis of the Euler and Werner deconvolution methods for effective depth excogitation of Bouguer anomalies in the Benue Trough, Nigeria.  Comparing the previously acquired Werner deconvolution for deep and shallow source data to the detailed and comprehensive results of the Euler deconvolution gave the desired results. The study utilized various filtering techniques to analyze Bouguer anomalies and develop derivative grids to identify distinct subsurface features, such as sedimentary formations, alluvial deposit zones, and regions with high- and low-density rock minerals. Results of the comparative analysis of Euler and Werner deep source gave a minimum of 7.17 km for block 8 and a maximum of 19.8 km for block 15 for Euler. It gave a minimum of 6.89 km for block 9 and a maximum of 21.4 km for block 15. The deep source trend result gave a relatively stable deep source signal from blocks 1 to 9; while, there was inconsistency for blocks 10 and 11, then with a sudden increase in signal strength. This inconsistency is perhaps due to the complexity of the anomaly and inconsistency detected using both methods for depth resolution. Observations showed a similar trend for shallow source results. Suggestions showed that the region has potential for hydrocarbon and economic mineral exploration, making it attractive for further geologic studies. Future gravity simulators should have multiple deconvolution windows to improve modeling accuracy. That can have valuable implications for Nigeria's oil and gas industry and other regions with similar geological characteristics.

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Data availability

The data supporting the findings of this study are within the manuscript. All relevant datasets used in the research entitled "Retrospective appurtenance of Euler and Werner deconvolution contiguity for source depth excogitation of Bouguer anomalies in the Benue Trough, Nigeria" are included within the main body of the manuscript itself. These datasets contain the necessary information to replicate the results and conclusions presented in the paper. For any further inquiries regarding the data, readers are encouraged to refer to the manuscript. The authors are committed to promoting transparency and openness in scientific research, and by providing the data within the manuscript, they aim to facilitate the validation and extension of their findings by the scientific community.

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Acknowledgements

This research was done in collaboration with Teeiloz Nigeria Ltd, the Physics Department at the University of Calabar in Nigeria, and the Petroleum Engineering Department of Madonna University in Nigeria’s College of Engineering and Technology. Federal University of Technology's Geology Department, Minna, Niger State, Nigeria. the Geosciences Department, University of Uyo, Uyo, Environmental Engineering Faculty, Cracow University of Technology, Cracow Poland and Okna Geoservices Ltd, Eket, Nigeria

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Authors and Affiliations

  1. Department of Geology, University of Calabar, Calabar, Nigeria

    A. J. Ilozobhie

  2. Department of Geology, Federal University of Technology, Minna, Nigeria

    J. S. Ejepu

  3. Faculty of Environmental Engineering and Energy, Cracow University of Technology, Cracow, Poland

    A. Szafarczyk

  4. Okna Geoservices Nigeria Limited, Eket, Nigeria

    O. E. Agbasi & N. J. Inyang

  5. Department of Geoscience, University of Uyo, Uyo, Nigeria

    N. J. Inyang

  6. Department of Petroleum Engineering, Madonna University, Enugu, Nigeria

    D. I. Egu

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  1. A. J. Ilozobhie
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  4. O. E. Agbasi
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Contributions

IJA and EJS were responsible for the data acquisition, interpretation, and analysis. SA provided technical guidance and expertise in the application of the Euler and Werner deconvolution techniques. AOE contributed to the literature review and interpretation of the results. INJ assisted with the data analysis and interpretation, and EDI provided critical insights and feedback throughout the project. All authors read and approved the final draft.

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Correspondence to O. E. Agbasi.

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Ilozobhie, A.J., Ejepu, J.S., Szafarczyk, A. et al. Retrospective appurtenance of Euler and Werner deconvolution contiguity for source depth excogitation of Bouguer anomalies in the Benue Trough, Nigeria. J. Sediment. Environ. 8, 491–505 (2023). https://doi.org/10.1007/s43217-023-00145-7

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