干旱区生态环境知识资源中心(Arid): Natural radioactivity and mineral chemistry aspects of rare metal mineralisation associated with mylonite at Wadi Sikait, South Eastern Desert, Egypt

Arid

DOI	10.1080/03067319.2021.1891416
	Natural radioactivity and mineral chemistry aspects of rare metal mineralisation associated with mylonite at Wadi Sikait, South Eastern Desert, Egypt
	Abdel Gawad, Ahmed E.; Ali, Mohamed A.; Ghoneim, Mohamed M.; El-Taher, Atef
通讯作者	Gawad, AEA (corresponding author), Nucl Mat Author, Cairo, Egypt.
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
ISSN	0306-7319
EISSN	1029-0397
出版年	2021-03
英文摘要	The natural radiometric data revealed that eU and eTh-contents of mylonite rocks reach up to 464 and 1283 ppm, respectively. The studied mineralised mylonites are enriched in thorite, ishikawite and zircon as well as other accessories (ferrocolumbite, xenotime, fergusonite, synchysite, cassetrite, apatite, fluorite, galena and barite). Ishikawaite is considered as the almost enriched mineral in uranium contents, whereas UO2 ranges from 31.02 to 50.78 wt%. The higher concentrations of UO2 reached up to 15.88 wt% and ThO2 up to 4.32 wt% related to metamictization of columbite. Some zircon crystals possess higher values of HfO2 reached up to 6.38 wt% could be affected by hydrothermal activity. Both xenotime and fergusonite are enriched in HREE (average n-ary sumation HRE2O3 31.19 and 14.1 wt%, respectively) whereas synchysite is main LREE bearing mineral (average n-ary sumation LRE2O3 55.78 wt%).
英文关键词	Wadi Sikait mylonite rocks Natural radioactivity radioactive bearing minerals accessory minerals
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000629050100001
WOS类目	Chemistry, Analytical ; Environmental Sciences
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352258
作者单位	[Abdel Gawad, Ahmed E.] Nucl Mat Author, Cairo, Egypt; [Ali, Mohamed A.; Ghoneim, Mohamed M.; El-Taher, Atef] Al Azher Univ, Fac Sci, Phys Dept, Assiut, Egypt
推荐引用方式 GB/T 7714	Abdel Gawad, Ahmed E.,Ali, Mohamed A.,Ghoneim, Mohamed M.,et al. Natural radioactivity and mineral chemistry aspects of rare metal mineralisation associated with mylonite at Wadi Sikait, South Eastern Desert, Egypt[J],2021.
APA	Abdel Gawad, Ahmed E.,Ali, Mohamed A.,Ghoneim, Mohamed M.,&El-Taher, Atef.(2021).Natural radioactivity and mineral chemistry aspects of rare metal mineralisation associated with mylonite at Wadi Sikait, South Eastern Desert, Egypt.INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY.
MLA	Abdel Gawad, Ahmed E.,et al."Natural radioactivity and mineral chemistry aspects of rare metal mineralisation associated with mylonite at Wadi Sikait, South Eastern Desert, Egypt".INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY (2021).