Applications of aeromagnetic data to detect the Basement Tectonics of Eastern Yemen region

El-Ata, Ahmed S. Abu; EI-Khafeef, Ahmed A.; Ghoneimi, Ashraf; Alnabi, Sami H. Abd; Al-Badani, Marwan A.

doi:10.1016/j.ejpe.2013.06.007

Cited by 18 publications

(5 citation statements)

References 9 publications

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“…The analytic signal is a mathematical technique used to enhance and analyze gravity data. It is particularly useful in the interpretation of Bouguer gravity anomalies, it estimated the sources are distinct dipping contacts between vast geological sections (El-Ata et al, 2013). Moreover, it is only moderately sensitive to data noise and interference from adjacent sources.…”

Section: • Analytical Signal (As)mentioning

confidence: 99%

Identifying the geological structure of the Garyan area in northwest Libya using eigen-6c4 satellite gravity data

Trepil

2024

AGG

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Satellite gravity data can be used in this study to characterise hitherto unexplored regions and enhance scientific understanding of the studied area. However, the geological ambiguity of the study area makes it challenging to figure out the geological interpretation within and around the area. Therefore, this work focused on the Garyan area in the northwest part of Libya for the purpose of identifying geological structures. The Garyan region is a part of Jabal Nafusah (central Jabal) due to its geographic location and the character of the escarpment. The gravity data was analysed, designed, and developed into a geophysical model using the Oasis Montaj programme. Several analytic techniques are applied to gravity datasets for subsurface structure investigation, including (TDR) tilt derivative, (THG) total horizontal gradient, (PS) Power spectrum technique, (AS) Analytical signal, and (ED) Euler deconvolution. The results identified the presence of faults trending in different orientations (N-S, NW-SE, E-W, NNW-SSE, NE-SW), with source depths ranging between 300 and 2300 m, which indicates a complex tectonic history in the area. Clearly, this work will reduce the ambiguity of geological interpretations and provide better information on the dominant trends for future exploration activities in the study region. It also detects the contacts of density variation and estimates the depth of the gravity sources from satellite-EIGEN-6C4 gravity data.

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Section: • Analytical Signal (As)mentioning

confidence: 99%

Identifying the geological structure of the Garyan area in northwest Libya using eigen-6c4 satellite gravity data

Trepil

2024

AGG

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“…The structural index can be interpreted as exponent in a power law expressing the falloff of the field strength versus distance from the source. For magnetic data, physically reasonable SI values range from (0) to (3). Values less than zero imply a field strength that increases with distance from the source (and it infinite at infinity), values greater than 3 imply quadruple or higher order multiple sources.…”

Section: Source Type Si Valuementioning

confidence: 99%

Detection of Depth and Location of Subsurface Utilities Using Smart Phone Magnetic Application: A Case Study at Assiut University, Egypt

eraky

Abdel-Aal²,

El-Haddad³

2022

Assiut University Journal of Multidisciplinary Scientific Resea

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“…The spectral analysis technique is used to isolate the regional and residual components from the RTP map (Radial Average Power Spectrum Technique). The use of this approach on the RTP map is to separate the regional and residual maps [21]. The Fast Fourier transformation is used in this procedure.…”

Section: Regional-residual Separationmentioning

confidence: 99%

Detection of Mineralization Zones Using Aeromagnetic Data

et al. 2022

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Every day, mining corporations grow and develop over Egypt’s Eastern Desert in search of gold, silver, and other metals. Mineral resources in Egypt are a powerful tool for increasing national income. In this study, we are interested in mineral exploration, such as gold and porphyry deposits, using aeromagnetic data, applying various processing techniques such as First Vertical Derivative, Total Horizontal Gradient, Analytical Signal, Tilt Derivative, and the center of exploration targeting. The study area is located at the Central Eastern Desert, which includes the Barramiya, Abu Marwa, and Abu Mireiwah regions. The analysis of the delineated structural trends shows that the N–S, NW–SE, and NE–SW are the most effective directions for managing deposits in the investigated area. A minor trend is also shown in the E–W direction and corresponds to the alteration zones reported by geology and prior investigations. Mineralization zones occur most frequently at the contact between ophiolitic serpentinite, sediments, and other rock types. This study intends to add more about the use of the recently developed technology of CET grid analysis for mineral exploration and structural interpretation across the Central Eastern Desert. The CET porphyry analysis map shows locations where several occurrences of porphyry deposits are probable. The newly discovered spots are similar to the area’s usual deposit sites. This study proves that aeromagnetic data are significant in mineral exploration since they are useful for the discovery of the structure and shear zones controlling the mineralization zones.

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Applications of aeromagnetic data to detect the Basement Tectonics of Eastern Yemen region

Cited by 18 publications

References 9 publications

Identifying the geological structure of the Garyan area in northwest Libya using eigen-6c4 satellite gravity data

Identifying the geological structure of the Garyan area in northwest Libya using eigen-6c4 satellite gravity data

Detection of Depth and Location of Subsurface Utilities Using Smart Phone Magnetic Application: A Case Study at Assiut University, Egypt

Detection of Mineralization Zones Using Aeromagnetic Data

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