干旱区生态环境知识资源中心(Arid): Monazite and cassiterite U-Pb dating of the Abu Dabbab rare-metal granite, Egypt: Late Cryogenian metalliferous granite magmatism in the Arabian-Nubian Shield

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DOI	10.1016/j.gr.2020.03.001
	Monazite and cassiterite U-Pb dating of the Abu Dabbab rare-metal granite, Egypt: Late Cryogenian metalliferous granite magmatism in the Arabian-Nubian Shield
	Lehmann, Bernd; Zoheir, Basem A.; Neymark, Leonid A.; Zeh, Armin; Emam, Ashraf; Radwan, Abdelhady M.; Zhang, Rongqing; Moscati, Richard J.
通讯作者	Lehmann, B
来源期刊	GONDWANA RESEARCH
ISSN	1342-937X
EISSN	1878-0571
出版年	2020
卷号	84 页码:71-80
英文摘要	The Abu Dabbab rare-metal granite in the Eastern Desert of Egypt is a highly-evolved alkali-feldspar granite with transitional magmatic-hydrothermal features. Extreme geochemical fractionation and the associated significant Ta-Sn resource make the Abu Dabbab intrusion an important feature in the metallogenic evolution of the Arabian-Nubian Shield. U-Pb dating by laser ablation sector field (SF)-ICPMS analysis of igneous monazite yields a Concordia age of 644.7 +/- 2.3 Ma, identical within uncertainty to a lower intercept Tera-Wasserburg isochron age of 644.2 +/- 2.3 Ma obtained from hydrothermal cassiterite. Both ages place tight constraints on the timing of magmatic-hydrothermal processes in the Abu Dabbab granite which represents the oldest highly-evolved granite recognized so far in the Pan-African Arabian-Nubian Shield. Thus, the new ages also date the start of a period of late-orogenic metalliferous granite magmatism, when the basement of the Eastern Desert underwent a geodynamic transition from a compressive subduction-collision regime towards orogenic collapse in the late Cryogenian. (C) 2020 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
英文关键词	Abu Dabbab Eastern Desert of Egypt Ram-metal granite LA-ICPMS U-Pb dating Late Cryogenian geodynamic change Orogenic collapse
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000542985400005
WOS关键词	A-TYPE GRANITES ; COLUMBITE-TANTALITE MINERALS ; CENTRAL EASTERN DESERT ; CRUSTAL EVOLUTION ; DETRITAL ZIRCONS ; AFRICAN OROGEN ; ICP-MS ; CONSTRAINTS ; MINERALIZATION ; COMPLEX
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	南京大学 ; United States Geological Survey
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324835
作者单位	[Lehmann, Bernd] Tech Univ Clausthal, Mineral Resources, Adolph Roemer Str 2a, D-38678 Clausthal Zellerfeld, Germany; [Zoheir, Basem A.] Benha Univ, Fac Sci, Dept Geol, Banha 13518, Egypt; [Zoheir, Basem A.] Univ Kiel, Inst Geol Sci, Ludewig Meyn Str 10, D-24118 Kiel, Germany; [Neymark, Leonid A.; Moscati, Richard J.] US Geol Survey, Southwest Isotope Res Lab, MS 963, Denver, CO 80225 USA; [Zeh, Armin] Karlsruher Inst Technol KIT, Inst Angew Geowissensch Mineral & Petrol, Adenauerring 20b, D-76131 Karlsruhe, Germany; [Emam, Ashraf; Radwan, Abdelhady M.] Aswan Univ, Fac Sci, Dept Geol, Aswan 81528, Egypt; [Zhang, Rongqing] Nanjing Univ, Sch Earth Sci & Engn, State Key Lab Mineeral Deposits Res, Nanjing 210023, Peoples R China
推荐引用方式 GB/T 7714	Lehmann, Bernd,Zoheir, Basem A.,Neymark, Leonid A.,et al. Monazite and cassiterite U-Pb dating of the Abu Dabbab rare-metal granite, Egypt: Late Cryogenian metalliferous granite magmatism in the Arabian-Nubian Shield[J]. 南京大学, United States Geological Survey,2020,84:71-80.
APA	Lehmann, Bernd.,Zoheir, Basem A..,Neymark, Leonid A..,Zeh, Armin.,Emam, Ashraf.,...&Moscati, Richard J..(2020).Monazite and cassiterite U-Pb dating of the Abu Dabbab rare-metal granite, Egypt: Late Cryogenian metalliferous granite magmatism in the Arabian-Nubian Shield.GONDWANA RESEARCH,84,71-80.
MLA	Lehmann, Bernd,et al."Monazite and cassiterite U-Pb dating of the Abu Dabbab rare-metal granite, Egypt: Late Cryogenian metalliferous granite magmatism in the Arabian-Nubian Shield".GONDWANA RESEARCH 84(2020):71-80.