nehal soliman

Dr. nehal soliman


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

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

Representative Publications

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18 June 2019 in Remote Sensing
Verified
Journal Article
Open access
PDF file
Basem ZoheirBasem Zoheir
Basem Zoheir
AEAshraf Emam
Ashraf Emam
MAMohamed Abdel-Wahed
Mohamed Abdel-Wahed
NSnehal soliman
nehal soliman
Satellite-based multi-sensor data coupled with field and microscopic investigations are used to unravel the setting and controls of gold mineralization in the Wadi Beitan–Wadi Rahaba area in the South Eastern Desert of Egypt. The satellite-based multispectral and Synthetic Aperture Radar (SAR) data promoted a vibrant litho-tectonic understanding and abetted in assessing the regional structural control of the scattered gold occurrences in the study area. The herein detailed approach includes band rationing, principal component and independent component analyses, directional filtering, and automated and semi-automated lineament extraction techniques to Landsat 8- Operational Land Imager (OLI), Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), Phased Array L-band Synthetic Aperture Radar (PALSAR), and Sentinel-1B data. Results of optical and SAR data processed as grayscale raster images of band ratios, Relative Absorption Band Depth (RBD), and (mafic–carbonate–hydrous) mineralogical indices are used to extract the representative pixels (regions of interest). The extracted pixels are then converted to vector shape files and are finally imported into the ArcMap environment. Similarly, manually and automatically extracted lineaments are merged with the band ratios and mineralogical indices vector layers. The data fusion approach used herein reveals no particular spatial association between gold occurrences and certain lithological units, but shows a preferential distribution of gold–quartz veins in zones of chlorite–epidote alteration overlapping with high-density intersections of lineaments. Structural features including en-echelon arrays of quartz veins and intense recrystallization and sub-grain development textures are consistent with vein formation and gold deposition syn-kinematic with the host shear zones. The mineralized, central-shear quartz veins, and the associated strong stretching lineation affirm vein formation amid stress build-up and stress relaxation of an enduring oblique convergence (assigned as Najd-related sinistral transpression; ~640–610 Ma). As the main outcome of this research, we present a priority map with zones defined as high potential targets for undiscovered gold resources.

1 May 2016 in Journal of African Earth Sciences
Verified
Journal Article
Closed access
SSS.M. Salem
S.M. Salem
MSM. El Sharkawi
M. El Sharkawi
ZEZ. El-Alfy
Z. El-Alfy
NSnehal soliman
nehal soliman
SAS.E. Ahmed
S.E. Ahmed


10 February 2013 in Arabian Journal of Geosciences
Verified
Journal Article
Closed access
PDF file
SSS. M. Salem
S. M. Salem
NSnehal soliman
nehal soliman
TRT. M. Ramadan
T. M. Ramadan
RGReinhard O. Greiling
Reinhard O. Greiling

26 June 2019 in Arabian Journal of Geosciences
Verified
Journal Article
Closed access
PDF file
OGOsama El Ghrabawy
Osama El Ghrabawy
NSnehal soliman
nehal soliman
ATAhmed Tarshan
Ahmed Tarshan

28 December 2018 in Arabian Journal of Geosciences
Verified
Journal Article
Closed access
PDF file
IEIbrahim Abu El-Leil
Ibrahim Abu El-Leil
NSnehal soliman
nehal soliman
MBMahmoud Hussien Bekiet
Mahmoud Hussien Bekiet
MEMohamed Samy Elhebiry
Mohamed Samy Elhebiry