干旱区生态环境知识资源中心(Arid): Tectonic record and gold mineralization in the central part of the Neoproterozoic Keraf suture, Gabgaba district, NE Sudan

Arid

DOI	10.1016/j.jafrearsci.2021.104248
	Tectonic record and gold mineralization in the central part of the Neoproterozoic Keraf suture, Gabgaba district, NE Sudan
	Perret, Julien; Feneyrol, Julien; Eglinger, Aurelien; Andre-Mayer, Anne-Sylvie; Berthier, Celestine; Ennaciri, Aomar; Bosc, Remi
通讯作者	Perret, J (corresponding author), Arethuse Geol EURL, BP 80017,1060 Rue Rene Descartes, F-13290 Le Milles, France.
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2021
卷号	181
英文摘要	The central Keraf suture recorded complex lithospheric-scale deformation associated with the formation of the Neoproterozoic Arabian-Nubian shield and hosts the WG03, Central Zone and UTM gold deposits, Gabgaba district, NE Sudan. This study aims at (i) unravelling the tectonic history recorded by the central Keraf suture and (ii) interpreting the spatial and genetic relationships between structural setting and gold mineralization. To this end, we coupled field petrographic observations and structural measurements made along a 50 km-long geological cross-section through the Gabgaba district with macroscopic and microscopic description of mineralized structures. The structural setting of the central Keraf suture is dominated by progressive deformation, from ductile D-1a Keraf thrusting to ductile-brittle D-1b sinistral shearing in a prolonged northwest-orientated convergence regime. A first mineralization event, leading to a minor gold endowment, relates to magmatic accretion pre-dating D-1a Keraf suturing. The second gold episode is characterized by ore veining as a response to progressive late collisional D-1b Keraf strike-slip shearing and may be classified as orogenic gold. Most of the gold budget of the Gabgaba district formed at this stage. In summary, the central Keraf suture exemplifies that the Arabian-Nubian shield contains significant polyphase gold mineralization along lithospheric-scale structures. These structures may record a complex tectonic evolution from magmatic to collision, with a strong structural control on gold endowment.
英文关键词	Arabian-Nubian shield Sudan Keraf suture Gabgaba district Thrust and strike-slip tectonics Polyphase mineralization Orogenic gold
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000660988700005
WOS关键词	ARABIAN-NUBIAN SHIELD ; WEST-AFRICAN CRATON ; RED-SEA HILLS ; EASTERN DESERT ; OROGENIC-GOLD ; BAYUDA-DESERT ; DELGO SUTURE ; PRECAMBRIAN BASEMENT ; OPHIOLITIC MELANGE ; INVISIBLE GOLD
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/2XILL650/350648
作者单位	[Perret, Julien; Feneyrol, Julien; Bosc, Remi] Arethuse Geol EURL, BP 80017,1060 Rue Rene Descartes, F-13290 Le Milles, France; [Eglinger, Aurelien; Andre-Mayer, Anne-Sylvie; Berthier, Celestine] Univ Lorraine, CNRS, GeoRessources, F-54000 Nancy, France; [Ennaciri, Aomar] Managem, Twin Ctr, BP5199,Tour A,Blvd Zerktouni, Casablanca, Morocco
推荐引用方式 GB/T 7714	Perret, Julien,Feneyrol, Julien,Eglinger, Aurelien,et al. Tectonic record and gold mineralization in the central part of the Neoproterozoic Keraf suture, Gabgaba district, NE Sudan[J],2021,181.
APA	Perret, Julien.,Feneyrol, Julien.,Eglinger, Aurelien.,Andre-Mayer, Anne-Sylvie.,Berthier, Celestine.,...&Bosc, Remi.(2021).Tectonic record and gold mineralization in the central part of the Neoproterozoic Keraf suture, Gabgaba district, NE Sudan.JOURNAL OF AFRICAN EARTH SCIENCES,181.
MLA	Perret, Julien,et al."Tectonic record and gold mineralization in the central part of the Neoproterozoic Keraf suture, Gabgaba district, NE Sudan".JOURNAL OF AFRICAN EARTH SCIENCES 181(2021).