干旱区生态环境知识资源中心(Arid): Shear-Related Gold Ores in the Wadi Hodein Shear Belt, South Eastern Desert of Egypt: Analysis of Remote Sensing, Field and Structural Data

Arid

DOI	10.3390/min11050474
	Shear-Related Gold Ores in the Wadi Hodein Shear Belt, South Eastern Desert of Egypt: Analysis of Remote Sensing, Field and Structural Data
	Abd El-Wahed, Mohamed; Zoheir, Basem; Pour, Amin Beiranvand; Kamh, Samir
通讯作者	Pour, AB (corresponding author), Univ Malaysia Terengganu UMT, Inst Oceanog & Environm INOS, Terengganu 21030, Malaysia.
来源期刊	MINERALS
EISSN	2075-163X
出版年	2021
卷号	11 期号:5
英文摘要	Space-borne multispectral and radar data were used to comprehensively map geological contacts, lithologies and structural elements controlling gold-bearing quartz veins in the Wadi Hodein area in Egypt. In this study, enhancement algorithms, band combinations, band math (BM), Principal Component Analysis (PCA), decorrelation stretch and mineralogical indices were applied to Landsat-8 OLI, ASTER and ALOS PALSAR following a pre-designed flow chart. Together with the field observations, the results of the image processing techniques were exported to the GIS environment and subsequently fused to generate a potentiality map. The Wadi Hodein shear belt is a ductile shear corridor developed in response to non-coaxial convergence and northward escape tectonics that accompanied the final stages of terrane accretion and cratonization (similar to 680-600 Ma) in the northern part of the Arabian-Nubian Shield. The evolution of this shear belt encompassed a protracted similar to E-W shortening and recurrent sinistral transpression as manifested by east-dipping thrusts and high-angle reverse shear zones. Gold-mineralized shear zones cut heterogeneously deformed ophiolites and metavolcaniclastic rocks and attenuate in and around granodioritic intrusions. The gold mineralization event was evidently epigenetic in the metamorphic rocks and was likely attributed to rejuvenated tectonism and circulation of hot fluids during transpressional deformation. The superposition of the NW-SE folds by NNW-trending, kilometer scale tight and reclined folds shaped the overall framework of the Wadi Hodein belt. Shallow NNW- or SSE-plunging mineral and stretching lineations on steeply dipping shear planes depict a considerable simple shear component. The results of image processing complying with field observations and structural analysis suggest that the coincidence of shear zones, hydrothermal alteration and crosscutting dikes in the study area could be considered as a model criterion in exploration for new gold targets.
英文关键词	multispectral satellite data PALSAR gold exploration Wadi Hodein shear belt transpressional deformation gold-bearing quartz veins
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000662435500001
WOS关键词	PRINCIPAL COMPONENT ANALYSIS ; SPACEBORNE THERMAL EMISSION ; REFLECTION RADIOMETER ASTER ; ARABIAN-NUBIAN SHIELD ; ALLAQI-HEIANI BELT ; BASEMENT ROCKS ; MINERALIZATION ; ZONES ; AREA ; EXPLORATION
WOS类目	Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
WOS研究方向	Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351151
作者单位	[Abd El-Wahed, Mohamed; Kamh, Samir] Tanta Univ, Fac Sci, Geol Dept, Tanta 31527, Egypt; [Zoheir, Basem] Benha Univ, Fac Sci, Geol Dept, Banha 13518, Egypt; [Zoheir, Basem] Univ Kiel, Inst Geosci, D-24118 Kiel, Germany; [Pour, Amin Beiranvand] Univ Malaysia Terengganu UMT, Inst Oceanog & Environm INOS, Terengganu 21030, Malaysia
推荐引用方式 GB/T 7714	Abd El-Wahed, Mohamed,Zoheir, Basem,Pour, Amin Beiranvand,et al. Shear-Related Gold Ores in the Wadi Hodein Shear Belt, South Eastern Desert of Egypt: Analysis of Remote Sensing, Field and Structural Data[J],2021,11(5).
APA	Abd El-Wahed, Mohamed,Zoheir, Basem,Pour, Amin Beiranvand,&Kamh, Samir.(2021).Shear-Related Gold Ores in the Wadi Hodein Shear Belt, South Eastern Desert of Egypt: Analysis of Remote Sensing, Field and Structural Data.MINERALS,11(5).
MLA	Abd El-Wahed, Mohamed,et al."Shear-Related Gold Ores in the Wadi Hodein Shear Belt, South Eastern Desert of Egypt: Analysis of Remote Sensing, Field and Structural Data".MINERALS 11.5(2021).