干旱区生态环境知识资源中心(Arid): Hazards of Radioactive Mineralization Associated with Pegmatites Used as Decorative and Building Material

Arid

DOI	10.3390/ma15031224
	Hazards of Radioactive Mineralization Associated with Pegmatites Used as Decorative and Building Material
	El Dabe, Mohamed M.; Ismail, A. M.; Metwaly, Mohamed; Taalab, Sherif A.; Hanfi, Mohamed Y.; Ene, Antoaneta
通讯作者	Hanfi, MY (corresponding author)，Nucl Mat Author, Cairo 11381, Egypt. ; Hanfi, MY (corresponding author)，Ural Fed Univ, Inst Phys & Technol, St Mira 19, Ekaterinburg 620002, Russia. ; Ene, A (corresponding author)，Dunarea Jos Univ Galati, Fac Sci & Environm, Dept Chem Phys & Environm, INPOLDE Res Ctr, 47 Domneasca St, Galati 800008, Romania.
来源期刊	MATERIALS
EISSN	1996-1944
出版年	2022
卷号	15 期号:3
英文摘要	The present study aimed to assess the radiological hazards associated with applying the investigated granite in the building materials and the infrastructures applications. The investigated granites are classified into four categories: El-Urf, barren, colourful and opaque. El Urf monzogranite intrudes metagabbro diorite complex with sharp contacts. Based on the activity concentrations, the environmental parameters such as absorbed dose rate (D-air), annual effective dose (AED), radium equivalent activity (Ra-eq), external (H-ex) and internal (H-in) hazard indices were measured. The mineralized pegmatite is located in the southwestern foothill of the Gabal El Urf younger granite. It displays well-defined zonation of three zones: outer, middle and inner zones represented by potash feldspar, quartz and mica, respectively. The isorad map showed that El Urf monzogranite is barren (Up to 100 cps) surrounding an excavation of the studied pegmatite that exhibits moderate colorful mineralization (phase-I = 500-1500 cps) and anomalous opaque mineralization (phase-II = 1500-3500 cps) pegmatites. The obtained results of radionuclides activity concentrations illustrated that the Opaque granites have the highest values of U-238 (561 +/- 127 Bq kg(-1)), Th-232 (4289 +/- 891 Bq kg(-1)) and K-40 (3002 +/- 446 Bq kg(-1)) in the granites, which are higher than the recommended worldwide average. Many of the radiological hazard parameters were lesser than the international limits in the younger granites and barren pegmatites. All of these parameters were higher in the colorful and opaque mineralized pegmatites. The high activity and the elevated radiological hazard parameters in the mineralized pegmatites are revised to the presence of radioactive and radioelements bearing minerals, such as thorite, meta-autunite, kasolite, phurcalite, columbite, fergusonite, Xenotime and fluorapatite. Other instances of mineralization were also recorded as cassiterite, atacamite, galena, pyrite and iron oxide minerals. Thus, the granites with high radioactivity concentration cannot be applied in the different applications of building materials and ornamental stones.
英文关键词	Gabal El Urf pegmatitic rocks zoned pegmatite poly-phased mineralization uranothorite radiological hazard parameters radioactive minerals
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000759416000001
WOS关键词	GABAL EL-URF ; NATURAL RADIOACTIVITY ; EASTERN DESERT ; PHOSPHATE ORES ; AREA ; RADIONUCLIDES ; ASSESSMENTS ; FERTILIZERS ; SUCCESSION ; SAMPLES
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376392
作者单位	[El Dabe, Mohamed M.; Ismail, A. M.; Metwaly, Mohamed; Hanfi, Mohamed Y.] Nucl Mat Author, Cairo 11381, Egypt; [Taalab, Sherif A.] Al Azhar Univ, Fac Sci, Cairo 11884, Egypt; [Hanfi, Mohamed Y.] Ural Fed Univ, Inst Phys & Technol, St Mira 19, Ekaterinburg 620002, Russia; [Ene, Antoaneta] Dunarea Jos Univ Galati, Fac Sci & Environm, Dept Chem Phys & Environm, INPOLDE Res Ctr, 47 Domneasca St, Galati 800008, Romania
推荐引用方式 GB/T 7714	El Dabe, Mohamed M.,Ismail, A. M.,Metwaly, Mohamed,et al. Hazards of Radioactive Mineralization Associated with Pegmatites Used as Decorative and Building Material[J],2022,15(3).
APA	El Dabe, Mohamed M.,Ismail, A. M.,Metwaly, Mohamed,Taalab, Sherif A.,Hanfi, Mohamed Y.,&Ene, Antoaneta.(2022).Hazards of Radioactive Mineralization Associated with Pegmatites Used as Decorative and Building Material.MATERIALS,15(3).
MLA	El Dabe, Mohamed M.,et al."Hazards of Radioactive Mineralization Associated with Pegmatites Used as Decorative and Building Material".MATERIALS 15.3(2022).