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Tytuł artykułu

Magnetic interpretation utilizing a new inverse algorithm for assessing the parameters of buried inclined dike‑like geological structure

Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A new algorithm has been established to interpret magnetic anomaly data due to inclined dike-like structure. This algorithm uses first horizontal derivative anomalies attained from magnetic anomaly data utilizing filters of sequential window lengths. The final estimated parameters are the half-width, the depth, angle of magnetization and amplitude factor of an inclined dike-like geological structure. A minimum variance criterion is used for selecting the most suitable variables. This algorithm has been realized to theoretical data without and with random noise. The effects of interference due to near structures have additionally been studied. The method was then applied to two field examples from Turkey and Peru, which demonstrate its effectiveness and accurateness. Thus, it is a respectable correspondence among the model parameters retrieved from this approach, drilling information, and the outcomes published in the literature. For example, in Turkey, we applied the technique to gauge the source variables and also the results were precise to w = 64.74 m and h = 87.65 m (2% and 3% errors, respectively) based on information from Aydin and Gelişli (Jeofizik 10:41–49, 1996).
Czasopismo
Rocznik
Strony
533--544
Opis fizyczny
Bibliogr. 30 poz.
Twórcy
  • Geophysics Department, Faculty of Science, Cairo University, Giza P.O. 12613, Egypt
  • Geophysics Department, Faculty of Science, Cairo University, Giza P.O. 12613, Egypt
Bibliografia
  • 1. Abdelrahman EM, Abo-Ezz ER, Essa KS, El-Araby TM, Soliman KS (2007a) A new least-squares minimization approach to depth and shape determination from magnetic data. Geophys Prospect 55:433–446
  • 2. Abdelrahman EM, Abo-Ezz ER, Soliman KS, EL-Araby TM, Essa KS (2007b) A least-squares window curves method for interpretation of magnetic anomalies caused by dipping dikes. Pure Appl Geophys 164:1027–1044
  • 3. Abdelrahman EM, Abo-Ezz ER, Essa KS (2012) Parametric inversion of residual magnetic anomalies due to simple geometric bodies. Explor Geophys 43:178–189
  • 4. Abo-Ezz ER, Essa KS (2016) A least-squares minimization approach for model parameters estimate by using a new magnetic anomaly formula. Pure Appl Geophys 173:1265–1278
  • 5. Al-Garni MA (2015) Interpretation of magnetic anomalies due to dipping dikes using neural network inversion. Arab J Geosci 8:8721–8729
  • 6. Aydin A, Gelişli K (1996) Magnetic studies for the skarn zone of Sarihan-Bayburt. Jeofizik 10:41–49 (in Turkish with English Abstract)
  • 7. Baiyegunhi C, Gwavava O (2017) Magnetic investigation and 2 D gravity profile modelling across the Beattie magnetic anomaly in the southeastern Karoo Basin, South Africa. Acta Geophys 65:119–138
  • 8. Bean RJ (1966) A rapid graphical solution for the aeromagnetic anomaly of the two-dimensional tabular body. Geophysics 31:963–970
  • 9. Bhimasankaram VLS, Mohan NI, Seshagiri Rao SV (1978) Interpretation of magnetic anomalies of dikes using Fourier transforms. Geophys Explor 16:259–266
  • 10. Cassano E, Rocca F (1974) Interpretation of magnetic anomalies using spectral estimation techniques. Geophys Prospect 23:663–681
  • 11. Cooper GRJ (2012) The semi-automatic interpretation of magnetic dyke anomalies. Comput Geosci 44:95–99
  • 12. Cooper GRJ (2015) Using the analytic signal amplitude to determine the location and depth of thin dikes from magnetic data. Geophysics 80:1–6
  • 13. Dondurur D, Pamukçu OA (2003) Interpretation of magnetic anomalies from dipping dike model using inverse solution, power spectrum and Hilbert transform methods. J Balk Geophys Soc 6:127–139
  • 14. Essa KS, Elhussein M (2017) A new approach for the interpretation of magnetic data by a 2-D dipping dike. J Appl Geophys 136:431–443
  • 15. Essa KS, Nady AG, Mostafa MS, Elhussein M (2018) Implementation of potential field data to depict the structural lineaments of the Sinai Peninsula, Egypt. J Afr Earth Sci 147:43–53
  • 16. Gadirov VG, Eppelbaum LV, Kuderavets RS, Menshove OI, Gadirov KV (2018) Indicative features of local magnetic anomalies from hydrocarbon deposits: examples from Azerbaijan and Ukraine. Acta Geophys. https://doi.org/10.1007/s11600-018-0224-0
  • 17. Gay SP (1963) Standard curves for interpretation of magnetic anomalies over long tabular bodies. Geophysics 28:161–200
  • 18. Hood P (1964) The Königsberger ratio and the dipping-dyke equation. Geophys Prospect 12:440–456
  • 19. Keating PB, Pilkington M (1990) An automated method for the interpretation of magnetic vertical-gradient anomalies. Geophysics 55:336–343
  • 20. Koulomzine T, Lamontagne Y, Nadeau A (1970) New methods for the direct interpretation of magnetic anomalies caused by inclined dikes of infinite length. Geophysics 35:812–830
  • 21. McGrath PH, Hood PJ (1970) The dipping dike case, a computer curve matching method of magnetic interpretation. Geophysics 35:831–848
  • 22. Mehanee SA (2015) Tracing of paleo-shear zones by self-potential data inversion: case studies from the KTB, Rittsteig, and Grossensees graphite-bearing fault planes. Earth Planets Space 67(1):14
  • 23. Mehanee SA, Essa KS (2015) 2.5D regularized inversion for the interpretation of residual gravity data by a dipping thin sheet: numerical examples and case studies with an insight on sensitivity and non-uniqueness. Earth Planets Space 67(1):130
  • 24. Pal PC (1985) A gradient analysis based simplified inversion strategy for the magnetic anomaly of an inclined and infinite thick dike. Geophysics 50:1179–1182
  • 25. Press WH, Flannery BP, Teukolsky SA, Vetterling WT (1986) Numerical recipes, the art of scientific computing. Cambridge University Press, Cambridge
  • 26. Rao BSR, Prakasa Rao TKS, Gopala Rao D, Kesavamani M (1972) Derivatives and dike anomaly interpretation. Pure Appl Geophys 99:120–129
  • 27. Rao DA, Babu HVR, Narayan PVS (1981) Interpretation of magnetic anomalies due to dikes: the complex gradient method. Geophysics 46:1572–1578
  • 28. Sengupta S, Das SK (1975) Interpretation of magnetic anomalies of dikes by Fourier transforms. Pure Appl Geophys 113:625–633
  • 29. Smith RS, Salem A, Lemieux J (2005) An enhanced method for source parameter imaging of magnetic data collected for mineral exploration. Geophys Prospect 53:655–665
  • 30. Werner S (1953) Interpretation of magnetic anomalies of sheet-like bodies. Sveriges Geologiska Undersökning. Ser C Årsbok 43(6):49
Uwagi
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-7ae9f72c-acd3-4faa-a5f3-791b121b4748
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