干旱区生态环境知识资源中心(Arid): Genesis of uranyl mineralization in the Arabian Nubian Shield: A review

Arid

DOI	10.1016/j.jseaes.2021.105047
	Genesis of uranyl mineralization in the Arabian Nubian Shield: A review
	Dawood, Yehia H.; Abd El-Naby, Hamdy H.
通讯作者	Abd El-Naby, HH (corresponding author)，King Abdulaziz Univ, Fac Earth Sci, POB 80206, Jeddah 21589, Saudi Arabia.
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
ISSN	1367-9120
EISSN	1878-5786
出版年	2022
卷号	225
英文摘要	This paper provides a review and synthesis of research literature on the geological, mineralogical and geochemical data to uranyl mineralization of the Arabian Nubian Shield (ANS). In general, the studied uranyl mineralization from the different locations of the ANS is similar from the mineralogical point of view. The mineral assemblages include, not conclusively, uranophane, kasolite, soddyite, boltwoodite, autunite, meta-autunite, liandratite, uranopyrochlore, ishikawaite and fergusonite. The compiled dataset supports a model of two main stages, namely hypogene or high-T alteration stage and supergene or low-T alteration stage. Both stages played an important role in the genesis of uranyl mineralization of the ANS. The late hydrothermal fluids leached uranium from the deep part of the host rocks and transported it in different uranous and uranyl complexes. While moving upward, the fluids gradually cooled to the temperature of meteoric water and probably have mixed with it. At these conditions, the pH of the fluids changes to be more alkaline and uranyl minerals start to develop in the fracture system mainly adsorbed on the clay minerals and probably coprecipitated with iron oxy-hydroxides. The requirement for supergene or low-T alteration stage would be saturation by oxic groundwater, a case implying the availability of meteoric water during the formation of uranyl mineralization in the ANS. Some of these minerals were dated by U-series method as 50-159 ka, and this could be attributed mainly to the Saharan II pluvial period.
英文关键词	Uranyl mineralization Arabian Nubian Shield Mineral chemistry Alteration processes Genetic processes
类型	Review
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000742706400001
WOS关键词	SOUTH EASTERN DESERT ; SECONDARY URANIUM DEPOSITS ; PYROCHLORE-GROUP MINERALS ; UM ARA AREA ; SOUTHEASTERN DESERT ; CRYSTAL-CHEMISTRY ; ORGANIC-MATTER ; HIJAZ REGION ; KINGDOM ; SERIES
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376856
作者单位	[Dawood, Yehia H.] Ain Shams Univ, Dept Geol, Fac Sci, Cairo, Egypt; [Abd El-Naby, Hamdy H.] King Abdulaziz Univ, Fac Earth Sci, POB 80206, Jeddah 21589, Saudi Arabia
推荐引用方式 GB/T 7714	Dawood, Yehia H.,Abd El-Naby, Hamdy H.. Genesis of uranyl mineralization in the Arabian Nubian Shield: A review[J],2022,225.
APA	Dawood, Yehia H.,&Abd El-Naby, Hamdy H..(2022).Genesis of uranyl mineralization in the Arabian Nubian Shield: A review.JOURNAL OF ASIAN EARTH SCIENCES,225.
MLA	Dawood, Yehia H.,et al."Genesis of uranyl mineralization in the Arabian Nubian Shield: A review".JOURNAL OF ASIAN EARTH SCIENCES 225(2022).