干旱区生态环境知识资源中心(Arid): Multispectral and Radar Data for the Setting of Gold Mineralization in the South Eastern Desert, Egypt

Arid

DOI	10.3390/rs11121450
	Multispectral and Radar Data for the Setting of Gold Mineralization in the South Eastern Desert, Egypt
	Zoheir, Basem 1,2; Emam, Ashraf 3; Abdel-Wahed, Mohamed 4; Soliman, Nehal 5
通讯作者	Zoheir, Basem
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2019
卷号	11 期号:12
英文摘要	Satellite-based multi-sensor data coupled with field and microscopic investigations are used to unravel the setting and controls of gold mineralization in the Wadi Beitan-Wadi Rahaba area in the South Eastern Desert of Egypt. The satellite-based multispectral and Synthetic Aperture Radar (SAR) data promoted a vibrant litho-tectonic understanding and abetted in assessing the regional structural control of the scattered gold occurrences in the study area. The herein detailed approach includes band rationing, principal component and independent component analyses, directional filtering, and automated and semi-automated lineament extraction techniques to Landsat 8- Operational Land Imager (OLI), Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), Phased Array L-band Synthetic Aperture Radar (PALSAR), and Sentinel-1B data. Results of optical and SAR data processed as grayscale raster images of band ratios, Relative Absorption Band Depth (RBD), and (mafic-carbonate-hydrous) mineralogical indices are used to extract the representative pixels (regions of interest). The extracted pixels are then converted to vector shape files and are finally imported into the ArcMap environment. Similarly, manually and automatically extracted lineaments are merged with the band ratios and mineralogical indices vector layers. The data fusion approach used herein reveals no particular spatial association between gold occurrences and certain lithological units, but shows a preferential distribution of gold-quartz veins in zones of chlorite-epidote alteration overlapping with high-density intersections of lineaments. Structural features including en-echelon arrays of quartz veins and intense recrystallization and sub-grain development textures are consistent with vein formation and gold deposition syn-kinematic with the host shear zones. The mineralized, central-shear quartz veins, and the associated strong stretching lineation affirm vein formation amid stress build-up and stress relaxation of an enduring oblique convergence (assigned as Najd-related sinistral transpression; 640-610 Ma). As the main outcome of this research, we present a priority map with zones defined as high potential targets for undiscovered gold resources.
英文关键词	multispectral and radar data data fusion gold mineralization Wadi Beitan-Wadi Rahaba structural control Najd Fault System South Eastern Desert Egypt
类型	Article
语种	英语
国家	Egypt ; Germany
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000473794600056
WOS关键词	REMOTE-SENSING DATA ; NEOPROTEROZOIC BASEMENT ROCKS ; ASTER SPECTRAL-ANALYSIS ; ARABIAN-NUBIAN SHIELD ; ALLAQI-HEIANI SUTURE ; INTEGRATED FIELD ; SATELLITE IMAGES ; SHEAR ZONES ; LANDSAT TM ; AREA
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/218385
作者单位	1.Benha Univ, Dept Geol, Fac Sci, Banha 13518, Egypt; 2.Univ Kiel, Inst Geosci, Ludewig Meyn Str 10, D-24118 Kiel, Germany; 3.Aswan Univ, Dept Geol, Fac Sci, Aswan 81528, Egypt; 4.Cairo Univ, Dept Geol, Fac Sci, Giza 12613, Egypt; 5.Natl Author Remote Sensing & Space Sci NARSS, Cairo 1564, Egypt
推荐引用方式 GB/T 7714	Zoheir, Basem,Emam, Ashraf,Abdel-Wahed, Mohamed,et al. Multispectral and Radar Data for the Setting of Gold Mineralization in the South Eastern Desert, Egypt[J],2019,11(12).
APA	Zoheir, Basem,Emam, Ashraf,Abdel-Wahed, Mohamed,&Soliman, Nehal.(2019).Multispectral and Radar Data for the Setting of Gold Mineralization in the South Eastern Desert, Egypt.REMOTE SENSING,11(12).
MLA	Zoheir, Basem,et al."Multispectral and Radar Data for the Setting of Gold Mineralization in the South Eastern Desert, Egypt".REMOTE SENSING 11.12(2019).