Determination of reactivated regions and faults in the Iraq Southern Desert with the new edge technique, Inverse Tilt Angle of Second-gradients (ITAS)

Al-Bahadily, Hayder Adnan; Al-Rahim, Ali Maki; Smith, Richard Stuart

doi:10.1007/s11600-023-01176-4

Artykuł - szczegóły

Tytuł artykułu

Determination of reactivated regions and faults in the Iraq Southern Desert with the new edge technique, Inverse Tilt Angle of Second-gradients (ITAS)

Autorzy

Al-Bahadily Hayder Adnan , Al-Rahim Ali Maki , Smith Richard Stuart

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-023-01176-4

Warianty tytułu

Języki publikacji

Abstrakty

A well-known and essential task in magnetic data interpretation is the structural mapping of basement terranes. Useful tools for analyzing the deep basement are edge-detection filters that normalize the first-/second-order gradients of the magnetic field in three spatial directions. Different edge-detection filters can reveal different structures; for example, filters that normally involve higher-order gradients may detect small-scale magnetic sources. This study aims to define magnetic bodies and interpret intra-basement structures from aeromagnetic data. For this purpose, we utilize three commonly used edge-detection filters that show edges as peaks, which can sometimes be quite broad. In addition, we suggest a new high-resolution filter that shows edges as a sharp crossover. The filters have been tested on the Bishop magnetic model and real airborne magnetic data from the Iraq Southern Desert (SD). Comparing the products of the proposed crossover filter with the three common filters shows similar high-resolution products, but the new filter can often highlight both shallow and deep subtle basement fabric. Our study of the SD magnetic dataset defined older reactivated regions, structural elements, and the trends of intrabasement fractures associated with more recent seismic events.

Słowa kluczowe

basement airborne survey edge detection reactivated faults

podłoże badanie lotnicze wykrywanie krawędzi

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2024

Tom

Vol. 72, no. 3

Strony

1675--1692

Opis fizyczny

Bibliogr. 24 poz.

Twórcy

autor

Al-Bahadily Hayder Adnan

hayder.adnan17@gmail.com

Department of Geology, College of Science, University of Baghdad, Baghdad, Iraq
Iraq Geological Survey (GEOSURV), Baghdad, Iraq

https://orcid.org/0000-0003-1970-5863

autor

Al-Rahim Ali Maki

Department of Geology, College of Science, University of Baghdad, Baghdad, Iraq

autor

Smith Richard Stuart

Harquail School of Earth Sciences, Laurentian University, Sudbury, ON P3E 2C6, Canada

Bibliografia

1. Al-Banna ASh, Ali KK (2018) The Transition tectonic zone between the two parts of the platform in iraq: a review study. Iraqi J Sci 59:1086-1092
2. Aqrawi AAM, Goff JC, Horbury AD, Sadooni FN (2010) The petroleum geology of Iraq. Scientific Press, UK, p 424p
3. Baranov V (1957) A new method for interpretation of aeromagnetic maps: Pseudo-gravimetric anomalies. Geophysics 22:359-382
4. Baranov V, Naudy H (1964) Numerical calculation of the formula of reduction to the magnetic pole. Geophysics 29:67-79
5. Buday T, Jassim SZ (1984) Geological map of Iraq 1:1000,000 Scale
6. Series, sheet No. 2, Tectonic Map of Iraq. Publication of GEO-SURV, Baghdad, Iraq
7. Cooper GRJ, Cowan DR (2006) Enhancing potential field data using filters based on the local phase. Comput Geosci 32:1585-1591
8. Cooper GRJ, Cowan DR (2008) Edge enhancement of potential-field data using normalized statistics. Geophysics 73(3):H1-H4. https:// doi.org/10.1190/1.2837309
9. Cordell L (1979) Gravimetric expression of graben faulting in Santa Fecountry and the Espanola Basin. New Mexico Geol. Soc. Guidebook, 30th Field Conference, New Mexico, 59-64
10. Elkins TA (1951) The second derivative method of gravity interpretation. Geophysics 16(1):29-50
11. Fairhead JD and Williams S (2006) Evaluating normalized magnetic derivatives for structural mapping. 76th annual international meeting, SEG, expanded abstracts, P. 845-848. https://doi.org/ 10.1190/1.2370388
12. Ferreira FJF, de Souza J, de Bongiolo ABS, de Castro LG (2013) Enhancement of the total horizontal gradient of magnetic anomalies using the tilt angle. Geophysics 78(3):J33-J41
13. Fox JE and TS Ahlbrandt (2002) Petroleum geology and total petroleum systems of the Widyan Basin and Interior Platform of Saudi Arabia and Iraq. United States Geological Survey Bulletin 2202E, 26
14. Hidalgo-Gato MC, Barbosa VCF (2017) The monogenic signal of potential-field data: a python implementation. Geophysics 82(3):F9-F14. https://doi.org/10.1190/geo2016-0099.1
15. Jassim SZ “Late Precambrian development of Arabian Plate.” Geology of Iraq. Edited by SZ Jassim and JC Goff 2006, Dolin, Prague, pp. 27-31
16. Lei K, Fairhead JD, Kerrane T and Al-Bassam KS (2011) Reprocessing of Iraq magnetic and gravity data. International Workshop on Gravity, Electrical and Magnetic Methods and Their Applications, Beijing, China. https://doi.org/10.1190/1.3659043
17. Miller HG, Singh V (1994) Potential field tilt a new concept for location of potential field sources. J Appl Geophys 32:213-217
18. Mohammed SAG (2006) Megaseismic section across the northeastern slope of the Arabian Plate. Iraq Geoarabia 11(4):77-90
19. Nabighian MN (1972) The analytic signal of two-dimensional magnetic bodies with polygonal cross-section: its properties and use for automated anomaly interpretation. Geophysics 37:507-517
20. Nabighian MN (1974) Additional comments on the analytic signal of two-dimensional magnetic bodies with polygonal cross-section. Geophysics 39:85-92
21. Pham LT, Vu TV, Le-Thi S, Trinh PT (2020) Enhancement of potential field source boundaries using an improved logistic filter. Pure Appl. Geophys. 177:5237-5249. https://doi.org/10.1007/ s00024-020-02542-9
22. Smith RS, Roots EA, Vavavur R (2022) Transformation of magnetic data to the pole and vertical dip and a related apparent susceptibility transform: Exact and approximate approaches. Geophysics 87(2):G1-G14. https://doi.org/10.1190/geo2020-0827.1
23. Thurston JB, Smith RS (1997) Automatic conversion of magnetic data to depth, dip, and susceptibility contrast using the SPITM method. Geophysics 62:807-813
24. Verduzco B, Fairhead JD, Green CM, MacKenzie C (2004) New insights to magnetic derivatives for structural mapping. Geophys Lead Edge 23:116-119

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-f715b1bb-6a2d-4a8b-93d6-ef722a7a8405