干旱区生态环境知识资源中心(Arid): Geochemistry and tectonic setting of the Abu-Marawat metavolcanics, Central Eastern Desert-Egypt

Arid

DOI	10.1007/s12517-020-06051-w
	Geochemistry and tectonic setting of the Abu-Marawat metavolcanics, Central Eastern Desert-Egypt
	Luo, Tao; El-Din, Gamal Kamal; Osman, Ibrahim; Abdelkareem, Mohamed
通讯作者	Abdelkareem, M
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:20
英文摘要	This article discussed the petrographic and geochemical characteristics and tectonic setting of Abu-Marawat metavolcanics as part of the Arabian-Nubian Shield in the Central Eastern Desert of Egypt. They comprise metamorphosed basalt, basaltic andesites, dacite, and rhyolites associated with their volcaniclastics. The presence of large amounts of pyroclastics infers that their magma were erupted in submarine environments. They underwent low-grade regional metamorphism related to greenschist facies during the Pan-African orogeny. The geochemical characteristics revealed that the metavolcanics are characterized by low-medium-k calc-alkaline affinity. Analyses of major and trace elements showed that these rocks are relatively enriched in large ion lithophile elements (LILEs; Ba, Rb, K, Pb, and Sr) and depleted in high field strength elements (HFSEs; Zr, Y, P, and Ti) proving subduction component. The marked depletion of specific trace and major elements from basalts to rhyolites reflected the magmatic fractionation. Chemical characteristics, tectonic discrimination diagrams, and N-MORB normalized spider plots of the present study support that their magmas were erupted in an arc setting.
英文关键词	Geochemistry Metavolcanics Petrogenesis Eastern Desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000576919800002
WOS关键词	VOLCANIC-ROCK SERIES ; ISLAND-ARC ; CHEMICAL CLASSIFICATION ; EVOLUTION ; DIFFERENTIATION ; CONSTRAINTS ; PETROLOGY ; DEPOSITS ; ZONE ; AREA
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/2XILL650/326731
作者单位	[Luo, Tao] Univ Hong Kong, Dept Earth Sci, Fac Sci, Hong Kong, Peoples R China; [El-Din, Gamal Kamal] Prince Sattam Bin Abdulaziz Univ, Dept Chem, Coll Sci & Humanities, Al Kharj, Saudi Arabia; [El-Din, Gamal Kamal; Abdelkareem, Mohamed] South Valley Univ, Dept Geol, Fac Sci, Qena 83523, Egypt; [Osman, Ibrahim] Egyptian Mineral Resources Author, Cairo, Egypt; [Abdelkareem, Mohamed] South Valley Univ, Remote Sensing Lab, Qena 83523, Egypt
推荐引用方式 GB/T 7714	Luo, Tao,El-Din, Gamal Kamal,Osman, Ibrahim,et al. Geochemistry and tectonic setting of the Abu-Marawat metavolcanics, Central Eastern Desert-Egypt[J],2020,13(20).
APA	Luo, Tao,El-Din, Gamal Kamal,Osman, Ibrahim,&Abdelkareem, Mohamed.(2020).Geochemistry and tectonic setting of the Abu-Marawat metavolcanics, Central Eastern Desert-Egypt.ARABIAN JOURNAL OF GEOSCIENCES,13(20).
MLA	Luo, Tao,et al."Geochemistry and tectonic setting of the Abu-Marawat metavolcanics, Central Eastern Desert-Egypt".ARABIAN JOURNAL OF GEOSCIENCES 13.20(2020).