干旱区生态环境知识资源中心(Arid): Petrogenesis of contrasting magmatic suites in the Abu Kharif area, Northern Eastern Desert, Egypt: implications for Pan-African crustal evolution and tungsten mineralization

Arid

DOI	10.1017/S0016756821001047
	Petrogenesis of contrasting magmatic suites in the Abu Kharif area, Northern Eastern Desert, Egypt: implications for Pan-African crustal evolution and tungsten mineralization
	Wanees, Nora G. Abdel; El-Sayed, Mohamed M.; Khalil, Khalil, I; Khamis, Hossam A.
通讯作者	Wanees, NGA (corresponding author)，Damanhour Univ, Fac Sci, Geol Dept, Damanhour, Egypt.
来源期刊	GEOLOGICAL MAGAZINE
ISSN	0016-7568
EISSN	1469-5081
出版年	2022
卷号	159 期号:3 页码:441-467
英文摘要	The Abu Kharif area in the Northern Eastern Desert consists of contrasting granitic magma suites: a Cryogenian granodiorite suite (850-635 Ma), an Ediacaran monzogranite suite (635-541 Ma) and a Cambrian alkali riebeckite granite suite (541-485 Ma). Tungsten mineralization occurs within W-bearing quartz veins and a disseminated type confined to the monzogranite. Whole-rock geochemical data classify the granodiorite as a late-orogenic I-type with calc-alkaline affinity, while the monzogranite and alkali riebeckite granite represent respectively a post-orogenic highly fractionated I-type with calc-alkaline affinity and an anorogenic A1-subtype with alkaline affinity. Geochemical modelling indicates that the three intrusions represent separate magmatic pulses where the granodiorite was generated by similar to 75 % batch partial melting of an amphibolitic source followed by fractional crystallization of hornblende, biotite, apatite and titanite. The monzogranite was formed by 62 % batch partial melting of the normal 'non-metasomatized' Pan-African crust of calc-alkaline granite composition followed by fractional crystallization of plagioclase, biotite, K-feldspar, magnetite, ilmenite, with minor apatite and titanite. The alkali riebeckite granite was generated by 65 % batch partial melting of metasomatized Pan-African granite source followed by fractional crystallization of plagioclase, K-feldspar, amphibole and biotite with minor magnetite, apatite and titanite. In general, the parent magmas of the three intrusions were originally enriched in W, but with different concentrations. This W-enrichment would be caused by magmatic-related hydrothermal volatile-rich fluids and concentrated within the monzogranite.
英文关键词	Pan-African crust granites geochemistry W-mineralization petrogenetic models Eastern Egypt Desert
类型	Editorial Material
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000753577200012
WOS关键词	A-TYPE GRANITES ; ARABIAN-NUBIAN SHIELD ; GEOCHEMICAL CONSTRAINTS ; TRACE-ELEMENT ; NEOPROTEROZOIC GRANITOIDS ; PLUTONIC ROCKS ; ISLAND-ARC ; ORIGIN ; FRACTIONATION ; SOUTHERN
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/2XILL650/376238
作者单位	[Wanees, Nora G. Abdel; El-Sayed, Mohamed M.] Damanhour Univ, Fac Sci, Geol Dept, Damanhour, Egypt; [Khalil, Khalil, I] Alexandria Univ, Fac Sci, Geol Dept, Alexandria, Egypt; [Khamis, Hossam A.] Nucl Mat Author, Cairo, Egypt
推荐引用方式 GB/T 7714	Wanees, Nora G. Abdel,El-Sayed, Mohamed M.,Khalil, Khalil, I,et al. Petrogenesis of contrasting magmatic suites in the Abu Kharif area, Northern Eastern Desert, Egypt: implications for Pan-African crustal evolution and tungsten mineralization[J],2022,159(3):441-467.
APA	Wanees, Nora G. Abdel,El-Sayed, Mohamed M.,Khalil, Khalil, I,&Khamis, Hossam A..(2022).Petrogenesis of contrasting magmatic suites in the Abu Kharif area, Northern Eastern Desert, Egypt: implications for Pan-African crustal evolution and tungsten mineralization.GEOLOGICAL MAGAZINE,159(3),441-467.
MLA	Wanees, Nora G. Abdel,et al."Petrogenesis of contrasting magmatic suites in the Abu Kharif area, Northern Eastern Desert, Egypt: implications for Pan-African crustal evolution and tungsten mineralization".GEOLOGICAL MAGAZINE 159.3(2022):441-467.