Results 1 to 10 of about 684 (154)

Separation, reserve estimation and radioactivity responsibility of the economic heavy minerals of East El- Arish black sand, North Sinai, Egypt [PDF]

open access: yesScientific Reports, 2023
Multi-heavy mineral separation techniques like density, magnetic, and electromagnetic techniques are followed by picking, grain counting, and mineralogical examinations conducted with an environmental scanning electron microscope (ESEM). These techniques
M. Awad   +5 more
doaj   +2 more sources

Combined X-ray absorption and SEM–EDX spectroscopic analysis for the speciation of thorium in soil [PDF]

open access: yesScientific Reports, 2023
Mobility and bioavailability of radionuclides in the environment strongly depend on their aqueous speciation, adsorption behavior and the solubility of relevant solid phases. In the present context, we focus on naturally occurring Th-232 at a location in
Sanduni Ratnayake   +8 more
doaj   +2 more sources

Linking mineral chemistry and radiological risk in rare-metal-bearing monzogranite in Egypt [PDF]

open access: yesScientific Reports
This study aims to define the mineralogical controls on natural radioactivity and its associated hazards in the El Fereyid monzogranite, Egypt. Integrated petrographic, microchemical, and radiometric analyses identify thorite (containing ≤ 66.1 wt% ThO2),
Mohamed M. Ghoneim
doaj   +2 more sources

Genetic implications of Th/U, Th/K, and U/K ratios for U mineralizations: A case study from El-Missikat and El-Erediya shear zones, Eastern Desert, Egypt [PDF]

open access: yesGeochemical Transactions, 2023
The current work is an attempt to reveal the possible utilization of the radiometric measurements to build-up a complete genetic scenario for magmatic, hydrothermal, and supergene uranium mineralization.
Mahmoud Abdel-Hakeem   +3 more
doaj   +2 more sources

Extreme maldistribution of high field strength elements along subduction zones revealed by baddeleyite aggregates in serpentinite [PDF]

open access: yesScientific Reports
Serpentinization along subducting plates induces mechanical mixing of diverse rocks and interaction with compositionally distinct fluids, which is often accompanied by the formation of rare mineral species. In this study, newly discovered baddeleyites in
Hikaru Sawada   +6 more
doaj   +2 more sources

Integrated radiometric and mineralogical investigation of radioactive mineralization in the El-Erediya Shear Zone, Eastern Desert, Egypt [PDF]

open access: yesScientific Reports
The shear zone cut through the western southern part of El-Erediya granite pluton represents one of the most promising radioactive minerals occurrences in Egypt’s Eastern Desert. To explore this shear zone, exploratory tunnels were dug at wadi level. The
Hassan Rageh   +5 more
doaj   +2 more sources

Fluorite and rare-metals mineralization in greisenized granite of Um Naggat area, Egypt constrained by physical separation and beneficiation assessment [PDF]

open access: yesScientific Reports
Fluorite and rare-metals mineralization hosted within the greisenized granites of Um Naggat area, Central Eastern Desert, Egypt, represents a potential source of critical raw materials. The studied sample is dominated by quartz and feldspar, with a minor
Mona M. Fawzy   +2 more
doaj   +2 more sources

Radiometric and mineralogical dataset of microgranite dykes and stream sediments of Ras Abda area, north Eastern Desert, Egypt [PDF]

open access: yesData in Brief, 2019
Ras Abda Area is located in the north part of the Eastern desert, and is characterized by a rugged topography and high relief. The main exposed rock units in the area comprise older granites, younger gabbros and granites as well as several types of post ...
Mohamed Hassan   +4 more
doaj   +2 more sources

Hydrothermal alteration processes in monzogranite: a case study from the Eastern Desert of Egypt: implications from remote sensing, geochemistry and mineralogy [PDF]

open access: yesGeochemical Transactions
The South Eastern Desert (SED) of Egypt is one of the most promising areas in Egypt; it is widely explored for exploring the rare earth elements (REEs) and uranium-bearing ores. It is a main part of the Arabian-Nubian Shield (ANS). Therefore, the present
Amira M. El Tohamy
doaj   +2 more sources

Mineralogy and geochemistry of thorium mineralization in the Chahgaz iron deposit, Bafq district, Central Iran [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2022
The Chahgaz iron deposit (XIV Anomaly) is located in the Bafq mining district in the Central Iranian geostructural zone in Yazd province. The Chahgaz deposit is hosted by Early Cambrian subvolcanic and volcanic rocks that range compositionally from ...
S. Ziapour   +3 more
doaj   +1 more source

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