A5049831316- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- High-pressure geophysics and materials
- Geochemistry and Elemental Analysis
- Paleontology and Stratigraphy of Fossils
- Hydrocarbon exploration and reservoir analysis
- Radioactive element chemistry and processing
- Radioactivity and Radon Measurements
- Building materials and conservation
- Geology and Paleoclimatology Research
- Hygrothermal properties of building materials
- Environmental DNA in Biodiversity Studies
- Identification and Quantification in Food
- Nuclear materials and radiation effects
- Geological formations and processes
- Geotechnical and construction materials studies
- Crystal Structures and Properties
- Transboundary Water Resource Management
- Geological and Geophysical Studies
- Genomics and Phylogenetic Studies
- Aquatic Ecosystems and Biodiversity
- Advanced X-ray and CT Imaging
- Fish Biology and Ecology Studies
United Arab Emirates University
2024
Minia University
2011-2024
University of Vienna
2017-2023
Maastrichtian organic-rich sediments of Egypt were deposited under a warm greenhouse climate along the stable African shelf. This study presents an integrated analysis geochemical, mineralogical, and palynological data from in northwest Red Sea region Egypt. The aim is to assess impact anoxia on enrichment organic matter trace metals reconstruct model for formation these sediments. are hosted within Duwi Dakhla formations, covering interval ∼1.14-2.39 million years. Our indicate variable...
Climatic variability and silicate weathering are remarkable features throughout the Late Cretaceous period. Campanian black shale is considered most significant source rock in southern Tethys. Here, we used mineralogical geochemical data to evaluate continental intensity climatic changes as well their impact on deposition of Western Desert Egypt. The studied has a relatively high concentration Al, Fe, Mg, Ca, Sr, Ga, Co, Cr, V when compared average Post-Archean Australian Shales (PAAS)....
The widely distributed granitic intrusions in the Nubian Shield can provide comprehensive data for understanding its crustal evolution. We present new bulk-rock geochemistry and isotopic (zircon U-Pb Lu-Hf) from Haweit granodiorites Gabgaba Terrane (NE Sudan). dated zircons presented a 206Pb/238U Concordia age of 718.5 ± 2.2 Ma, indicating that they crystallized during Cryogenian. contain both biotite amphibole as main mafic constituents. samples exhibit metaluminous (A/CNK = 0.84–0.94)...
The rare-metal granites of the Nubian Shield are commonly associated with Nb–Ta and Sn mineralization. magmatic hydrothermal evolution these their relation to mineralization need further investigations. This study reports new mineral chemistry, whole-rock geochemical, Sr–Nd isotopic data for Abu Dabbab in Central Eastern Desert Egypt provide insights into formation mechanisms consist mainly albite, orthoclase, quartz, Li-phengite, accessory minerals including cassiterite, columbite,...
The widely distributed late‐collisional calc‐alkaline granitoids in the northern Arabian–Nubian Shield (ANS) have a geodynamic interest as they represent significant addition of material into ANS juvenile crust short time interval (∼630–590 Ma). Deleihimmi Egyptian Central Eastern Desert are, therefore, particularly interesting since form multiphase pluton composed largely biotite enclosing granodiorite microgranular enclaves and intruded by leuco‐ muscovite granites. Geochemically,...
The Neoproterozoic banded iron formations (BIFs) are widely occurred in the Egyptian Eastern Desert. This study integrates field observations, petrographic studies, geochemical data, and lead isotopes to construct genesis depositional environment of Wadi El-Mis hama BIF deposits. layers, primarily oxide facies within a volcano-sedimentary sequence, comprise magnetite-rich beds alternating with jaspilite or silicate laminae. studied BIFs exhibit dominant composition SiO 2 Fe O 3 t relatively...
This study investigates the mineral chemistry of olivine, orthopyroxene, clinopyroxene, and chromite phases from Wadi Zikt high Al-chromitite within Khor Fakkan massif UAE ophiolites. The ophiolites, part well-preserved Semail ophiolite complex, represent mantle sections formed in a supra-subduction zone (SSZ) environment. Detailed analyses reveal that olivine exhibits forsterite contents (Fo > 90), elevated NiO concentrations (up to 0.6 wt%), low MnO (< 0.2 indicating significant...
The petrogenesis of A-type granites with different occurrences in the Nanling Range remains unclear. In this study, a case study Jiuyishan complex massif and Xianghualing intrusive stocks was conducted to determine problem. is composed four units (Jinjiling, Pangxiemu, Shaziling Xishan). These have similar zircon U-Pb ages approximately 153 Ma, high Zr + Nb Ce Y contents (>350 ppm), 10,000 Ga/Al ratios (>2.6), crystallization temperature, indicating affinities. They show gradual change...
The utilization of phosphorite deposits as an industrial resource is paramount importance, and its sustainability largely depends on ensuring safe responsible practices. This study aims to evaluate the suitability for applications such production phosphoric acid phosphatic fertilizers. To achieve this goal, meticulously examines geochemical characteristics deposits, investigates distribution natural Radioactivity within them, assesses potential radiological risk associated with their use....
Campanian lacustrine organic-rich mudstones were deposited under a warm greenhouse climate in Egypt. In this study, integrated elemental geochemical analyses have been applied to discriminate the paleoweathering conditions, provenance, and tectonic setting of these mudstones. The studied samples are relatively enriched Al, Ca, V, Sc, Cr compared Post-Archean Australian shales (PAAS). Their chondrite normalized REE patterns show enrichment light heavy REE, with negative Eu anomaly (Eu/Eu* =...
The Ediacaran peralkaline granites, which were emplaced during the post-collisional tectonic extensional stage, have a limited occurrence in northern tip of Nubian Shield. In this contribution, we present new mineralogical and geochemical data Mount El-Sibai granites from Central Eastern Desert Egypt. aim is to discuss their crystallization condition, setting, petrogenesis as well magmatic evolution associated mineralization. consists alkali-feldspar (AFGs) main rock unit with scattered...