Radiological Risk Parameters of the Phosphorite Deposits, Gebel Qulu El Sabaya: Natural Radioactivity and Geochemical Characteristics
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Radiological Risk Parameters of the Phosphorite Deposits, Gebel Qulu El Sabaya: Natural Radioactivity and Geochemical Characteristics
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| Автор |
Lasheen, E. S. R.
Zakaly, H. M. H. Alotaibi, B. M. Saadawi, D. A. Ene, A. Fathy, D. Awad, H. A. El, Attar, R. M. |
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| Тематика |
DUWI FORMATION
GEBEL QULU EL SABAYA PHOSPHORITE RADIOACTIVITY RADIOLOGICAL HEALTH |
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| Описание |
This study investigates the distribution of natural radioactivity and geological, geochemical, and environmental risk assessments of phosphorite deposits to determine their suitability for international applications (such as phosphoric acid and phosphatic fertilizers). The examined Late Cretaceous phosphorite deposits belong to the Duwi Formation, which is well exposed on the southern scarp boundary at the central part of Abu Tartur Plateau, Gebel Qulu El Sabaya, East Dakhla Oasis. This formation is classified into lower phosphorite, middle shale, and upper phosphorite members. The lower phosphorite ranges in thickness from 2 to 3.5 m and mainly comprises apatite (possibly francolite), dolomite, calcite, quartz, hematite, anhydrite, and kaolinite. They contain an average concentration of CaO (38.35 wt.%), P2O5 (24.92 wt.%), SiO2 (7.19 wt.%), Fe2O3 (4.18 wt.%), MgO (3.99 wt.%), F (1.59 wt.%), Al2O3 (1.84 wt.%), Na2O (1.33 wt.%), and K2O (0.22 wt.%). Natural radioactivity and radiological parameters were investigated for fifteen samples of phosphorites using a NaI (Tl) scintillation detector. Absorbed dose rates, outdoor and indoor annual effective dose, radium equivalent activity, external and internal hazard, and excess cancer risk values are higher than the recommended levels, reflecting that exposure to these deposits for a long time may lead to health risks to human organs. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
Dunarea de Jos” University of Galati Princess Nourah Bint Abdulrahman University, PNU, (PNURSP2022R32) Acknowledgments: The authors would like to express their gratitude to Princess Nourah bint Abdulrahman University Researchers Supporting Project (grant no. PNURSP2022R32), Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia. The author A.E acknowledges the support of “Dunarea de Jos” University of Galati, Romania. |
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| Дата |
2024-04-08T11:06:34Z
2024-04-08T11:06:34Z 2022 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) Published version (info:eu-repo/semantics/publishedVersion) |
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| Идентификатор |
Lasheen, ESR, Zakaly, HMH, Alotaibi, BM, Saadawi, DA, Ene, A, Fathy, D, Awad, HA & El Attar, RM 2022, 'Radiological Risk Parameters of the Phosphorite Deposits, Gebel Qulu El Sabaya: Natural Radioactivity and Geochemical Characteristics', Minerals, Том. 12, № 11, 1385. https://doi.org/10.3390/min12111385
Lasheen, E. S. R., Zakaly, H. M. H., Alotaibi, B. M., Saadawi, D. A., Ene, A., Fathy, D., Awad, H. A., & El Attar, R. M. (2022). Radiological Risk Parameters of the Phosphorite Deposits, Gebel Qulu El Sabaya: Natural Radioactivity and Geochemical Characteristics. Minerals, 12(11), [1385]. https://doi.org/10.3390/min12111385 2075-163X Final All Open Access; Gold Open Access https://www.mdpi.com/2075-163X/12/11/1385/pdf?version=1669023227 https://www.mdpi.com/2075-163X/12/11/1385/pdf?version=1669023227 http://elar.urfu.ru/handle/10995/131315 10.3390/min12111385 85143734382 000912418200001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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application/pdf
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| Издатель |
MDPI
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| Источник |
Minerals
Minerals |
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