干旱区生态环境知识资源中心(Arid): Structural and petrological re-assessed for the Najd-related shear zones along the Egyptian Eastern Desert

Arid

DOI	10.1007/s12517-021-07536-y
	Structural and petrological re-assessed for the Najd-related shear zones along the Egyptian Eastern Desert
	El-Fakharani, Abdelhamid; Radwan, Abdelhady; Hagag, Wael; Abdel-Rahman, Ezzat; Younis, Mohammed Hassan
通讯作者	Hagag, W (corresponding author), Benha Univ, Dept Geol, Fac Sci, Banha 13518, Egypt.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:12
英文摘要	The Nugrus-Hafafit and El Shalul areas are regarded as key regions for many enigmatic problems and debatable issues concerning the tectonic setting of the Najd-related shear zones in the Eastern Desert of Egypt. The Neoproterozoic basement succession in the studied areas is well-developed and represented by four rock groups arranged from older to younger as infrastructure unite (amphibolites, migmatized hornblende-biotite gneiss, psammitic gneiss and chlorite-biotite schist), suprastructure units including ophiolitic melange (metaultramafics and related derivatives) and island arc assemblages (metagabbros and metavolcanic-metasedimentary association), syn-tectonic granitoids (gneissic to undeformed granodiorite-tonalite), late-tectonic to post-tectonic/post-collision granites (mylonitized muscovite granite, biotite granite and perthitic alkali granite), and post-granitic dykes (pegmatites and quartz veins). The tectonic structures in the studied regions indicate at least three successive phases of deformation (D-1, D-2, and D-3). D-1 represents NE-SW (to ENE-WSW) shortening associated with major thrusting of the supracrustal rocks over the infracrustal rocks in Nugrus-Hafafit area and NW-SE shortening accompanied the orogen-parallel extension/extrusion in El Shalul area. D-2 is characterized by NW-SE (to NNW-SSE) transpression along the Najd-related shear zones. During D-3, the NW-SE (to NNW-SSE) shortening produced dextral shearing along the NE-SW Mubarak-Barramiya Shear Belt (MBSB). Field relations and observations indicate that the NW Najd-related Nugrus and El Shalul shear zones and the NE-oriented shears are not a conjugate pairs. Furthermore, the tectonic-magmatic-metamorphic evolution of the Pan-African belt in the Eastern Desert of Egypt has been progressively changed and/or developed from south to north, in terms of tectonic transportation/thrust direction and deformational style.
英文关键词	Najd Fault System Nugrus-Hafafit Gabal El Shalul Core complexes Najd-related shear zones Conjugate shearing
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000677556200052
WOS关键词	ARABIAN-NUBIAN SHIELD ; COLLISION
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/2XILL650/362527
作者单位	[El-Fakharani, Abdelhamid] King Abdulaziz Univ, Fac Earth Sci, Dept Struct Geol & Remote Sensing, Jeddah 80200, Saudi Arabia; [El-Fakharani, Abdelhamid; Radwan, Abdelhady; Abdel-Rahman, Ezzat; Younis, Mohammed Hassan] Aswan Univ, Dept Geol, Fac Sci, Aswan 81528, Egypt; [Hagag, Wael] Benha Univ, Dept Geol, Fac Sci, Banha 13518, Egypt
推荐引用方式 GB/T 7714	El-Fakharani, Abdelhamid,Radwan, Abdelhady,Hagag, Wael,et al. Structural and petrological re-assessed for the Najd-related shear zones along the Egyptian Eastern Desert[J],2021,14(12).
APA	El-Fakharani, Abdelhamid,Radwan, Abdelhady,Hagag, Wael,Abdel-Rahman, Ezzat,&Younis, Mohammed Hassan.(2021).Structural and petrological re-assessed for the Najd-related shear zones along the Egyptian Eastern Desert.ARABIAN JOURNAL OF GEOSCIENCES,14(12).
MLA	El-Fakharani, Abdelhamid,et al."Structural and petrological re-assessed for the Najd-related shear zones along the Egyptian Eastern Desert".ARABIAN JOURNAL OF GEOSCIENCES 14.12(2021).