Ahmed Abdelhalim

Prof. Dr. Ahmed Abdelhalim

Cairo University, Faculty of Science
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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5 May 2023 in Scientific Reports
Verified
Journal Article
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AEAbdelmonem Eldougdoug
Abdelmonem Eldougdoug
MAMaha Abdelazeem
Maha Abdelazeem
MGMohamed gobashy
Mohamed gobashy
MAMohamed Abdelwahed
Mohamed Abdelwahed
YEYasser Abd El-Rahman
Yasser Abd El-Rahman
SSSaid Said
Said Said
Gold mining is an important strategic sector. The search for mineral reserves is moving deeper as more accessible shallow resources are discovered. Geophysical techniques are now being employed more frequently in mineral exploration because they are quick and can provide crucial subsurface information for discovering potential metal deposits, particularly in high-relief and inaccessible places. The potential for gold in a large-scale gold mining (LSGM) locality in the South Abu Marawat area is investigated using a geological field investigation that includes rock sampling, structural measurements, detailed petrography, reconnaissance geochemistry, and thin section analysis, integrated with various transformation filters of surface magnetic data (analytic signal, normalized source strength, tilt angle), contact occurrence density maps, and tomographic modelling for the subsurface magnetic susceptibilities. The benefits of remote sensing (RS) and its technology in mapping detailed rock differentiation, and characterizing physical objects on the land surface using various spatial, and spectral resolution datasets are integrated. Both aeromagnetic and measured land magnetic profiles are used to investigate the area’s present geological conditions and possible future mining localities. Results indicate that gold mineralization in the study area is linked to the altered ultramafic zones that are associated with faulting and shearing and characterized by a low magnetic susceptibility anomaly.

7 February 2021 in Natural Resources Research
Verified
Journal Article
Closed access
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MGMohamed gobashy
Mohamed gobashy
AEAbdelmonem Eldougdoug
Abdelmonem Eldougdoug
MAMaha Abdelazeem
Maha Abdelazeem
AAAhmed Abdelhalim
Ahmed Abdelhalim

21 March 2020 in Arabian Journal of Geosciences
Verified
Journal Article
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HAHatem Aboelkhair
Hatem Aboelkhair
AAAhmed Abdelhalim
Ahmed Abdelhalim
ZHZakaria Hamimi
Zakaria Hamimi
MAMajid Al-Gabali
Majid Al-Gabali

2 July 2021 in Natural Resources Research
Verified
Journal Article
Closed access
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MGMohamed gobashy
Mohamed gobashy
AMA. M. Metwally
A. M. Metwally
MAMaha Abdelazeem
Maha Abdelazeem
KSK. S. Soliman
K. S. Soliman
AAAhmed Abdelhalim
Ahmed Abdelhalim

16 May 2023 in Pure and Applied Geophysics
Verified
Journal Article
Open access
PDF file
MGMohamed gobashy
Mohamed gobashy
AEAbdelmonem Eldougdoug
Abdelmonem Eldougdoug
MAMohamed Abdelwahed
Mohamed Abdelwahed
MAMaha Abdelazeem
Maha Abdelazeem
YEYasser Abd El-Rahman
Yasser Abd El-Rahman
SSSaid Said
Said Said
Gold mineralisation is spatially and chronologically correlated with fault/shear zones in many of the world-class gold mines. Hence, the indirect exploration for Au mineralisation is linked with shearing and complex structures in many areas. Hence, in general, the need for a rapid, effective and new technology for gold exploration that reflects the structure set-up, shear zones, faults and related structural elements is crucial in the gold industry. In this article, we present an example of an integrated approach to gold exploration in the Fawakheir-Attala gold mining prospect in the eastern desert of Egypt. Remote sensing is used to test for rock differentiation; intensive field geological investigations were conducted along several traverses. Petrographic and geochemical analysis of selected samples confirmed Au content in some localities. Moreover, magnetic methods are used extensively (either aeromagnetic or measured land profiles) to investigate the magnetic signature of the different reported rock units and their relationship with gold occurrences and deposits. Normalised source strength transformation, magnitude magnetic transforms and subsurface modelling are used to explore the inherent relation between the surface and subsurface magnetic susceptibilities. The magnetic signature of the talc-carbonate rocks is determined. The gradational contact against the serpentinite is explained. Because three current Au mines are associated with contacts/fractures, the clear relation between the contacts/fractures and the magnetic data and the comparison with the contact occurrence density COD (heat) magnetic filtered map, the present analysis workflow can now be used to suggest new locations for Au occurrences.

16 November 2022 in Arabian Journal of Geosciences
Verified
Journal Article
Open access
PDF file
MGMohamed gobashy
Mohamed gobashy
EAEhdaa Allah Sayed Abbas
Ehdaa Allah Sayed Abbas
KSKhalid S. Soliman
Khalid S. Soliman
AAAhmed Abdelhalim
Ahmed Abdelhalim
The current study is mainly devoted to the integration, analysis, and interpretation of the available geologic, remote sensing, and potential field data (mainly magnetic) to delineate the subsurface geologic structural elements controlling the western part of Baranes, South Eastern Desert, Egypt, and its relation to the southwestern desert structural regime. Additionally, to detect potential mineralization zones for future mining plans in the study area. The Western part of Baranes has not had enough geomorphological mapping, consequently, potential discoveries of mineralization zones are very low. So, in this paper, an attempt is initiated to better understand the evolution of the geomorphology and structural regime of the region and construct a digital geological map and structural patterns showing the possible locations of mineralization zones based on the previous knowledge from similar potential sites and focus on the future economic importance of the region. To achieve this purpose, processed Landsat-8 images successfully revealed the lithological contacts and fault zones helping in distinguishing between the different rock units; moreover, the aeromagnetic data available in the area is used and several filters are applied including reduction to the pole, Euler homogeneity equation, analytic Signal (AS), and advanced grid filtering are sequentially used aiming to detect the possible subsurface distribution of mineralization zones from the integrated interpretation of magnetic susceptibilities and available geologic and remote sensing data.