Subsurface structural characterization as deduced from potential field data—West Beni Suef, Western Desert, Egypt

Subsurface structural characterization as deduced from potential field data—West Beni Suef, Western Desert, Egypt

The goal of present study is determining subsurface structural elements by analyzing geomagnetic data sets aiming to examine their impacts on geological surface structures characterizing the western region in Beni-Suef Governorate, Western Desert, Egypt. A land-magnetic survey is conducted by two ex...

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Bibliographic Details
Published in:Arabian journal of geosciences Vol. 15; no. 21
Main Authors: Khalil, Ahmed, Hafeez, Tharwat H. Abdel, kotb, Ahmed El, Saleh, Hassan S., Mohamed, Waheed H., Takla, Emad
Format: Journal Article
Language:English
Published: Cham Springer International Publishing 01-11-2022
Springer Nature B.V
Subjects:
Analysis
Anomalies
Basements
Contouring
Data acquisition
Depth
Deserts
Diurnal variations
Earth and Environmental Science
Earth science
Earth Sciences
Edge detection
Geomagnetic field
Geomagnetism
Land acquisition
Magnetic data
Magnetic poles
Magnetic surveys
Magnetometers
Original Paper
Potential fields
Power spectrum analysis
Proton magnetometers
Reduction
Relief maps
Spectral analysis
Spectrum analysis
Structural analysis
Structural members
Surveying
Surveys
Trend analysis
Western Desert
Egypt
Depth of basement and subsurface structures
Magnetic survey
Gravity data
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Summary:The goal of present study is determining subsurface structural elements by analyzing geomagnetic data sets aiming to examine their impacts on geological surface structures characterizing the western region in Beni-Suef Governorate, Western Desert, Egypt. A land-magnetic survey is conducted by two exceedingly sensitive proton magnetometers to measure the total intensity of geomagnetic field at the region under investigation. The measurements of regional gradients and time variation were applied to get the required reduction of daily variation. The regional expansions of subsurface structural units were obtained after applying the reduction to north magnetic pole (RTP) method to the corrected magnetic data acquired from land-magnetic survey along with Bouguer maps (1:100,000 scale and 1-mGal contouring interval). Regional-residual technique was applied depending on the power spectrum analysis. Moreover, the edge detection approach is conducted to depict the structures and subsurface hidden anomalies. Different handling processes were applied for acquired land magnetic datasets such as Euler deconvolution and trend analysis. The results of current study revealed that four significant structural forces across the N-S, NW–SE, NE-SW, and E-W directions affected the region. Estimating the basement depth was accomplished using a number of spectral analysis techniques. The values of estimated depths are used for creating a basement relief map. Moreover, the achieved results show that depths to the basement at the region under study vary between 2.3 and 4.7 km.
ISSN:1866-7511
1866-7538
DOI:10.1007/s12517-022-10900-1