干旱区生态环境知识资源中心(Arid): Using ASTER images and field work data for geological mapping around Wadi Umm Ashira and Wadi Tilal Al-Qulieb, Northwestern part of Wadi Allaqi, South Eastern Desert, Egypt

Arid

DOI	10.1007/s12517-021-08234-5
	Using ASTER images and field work data for geological mapping around Wadi Umm Ashira and Wadi Tilal Al-Qulieb, Northwestern part of Wadi Allaqi, South Eastern Desert, Egypt
	Soliman, Nehal Mohamed; El-Desoky, Hatem Mohamed; Heikal, Mohamed Ahmed; Abdel-Rahman, Ahmed Mohamed
通讯作者	Soliman, NM (corresponding author), Natl Author Remote Sensing & Space Sci NARSS, Cairo 1564, Egypt.
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2021
卷号	14 期号:18
英文摘要	The use of processed ASTER images (VNIR and SWIR) supplemented by geological fieldwork and spectral measurements of field samples then petrographic studies enabled the creating of a new geological map of the northwestern sector of the Wadi Allaqi, South Eastern Desert, Egypt. Color ratio composites, band math, false-color composites, and principal component analysis techniques are used to refine the different lithologic units in the area. These methods showed the discrimination of different types of metamorphic and igneous rocks as well as dikes. The false color band combinations b4, b5, and b3 in RGB and color ratio composites 4/1, 6/2, and 8/2 and 4/7, 2/4, and 6/8 for RGB are showing a good composite which separated between the different rock types in the study area especially serpentinites, talc carbonate, and marble. The principal component analysis technique of ASTER (PC3, PC1, and PC4 in RGB; PC2, PC3, and PC1 in RGB; and PC4, PC2, and PC1 in RGB) enhances the main structural trends affecting the area under investigation. These images are considered good for lithologic and structural edge enhancements for both visual interpretation and field mapping. FCC images 7, 3, and 1 in RGB are showing a large open fold as well as the major left-strike slip fault and restraining (Augen) shape as a result of being affected by the Allaqi Heiani shear zone. The axial plane of an anticlinal fold-oriented NW-SE is plunging with a moderate angle to the SE. The major strike-slip fault is the wadi Um Arka sinistral fault that runs subparallel to Um Ashira major fault that led to lateral movement of metasediment and the marble bands' horizontal displacements of about 100 to 747 m. Restraining bend structure (sigmoidal=augen shape) formed a result of a fault. The final map illustrating the lithological composition and structural areas is based on field studies and remote sensing techniques.
英文关键词	Remote sensing ASTER image Allaqi Heiani suture Microstructure Strike slip fault Folding
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000686636500008
WOS关键词	GOLD ; AREA ; MINERALIZATION ; EXPLORATION ; ZONES
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/2XILL650/362570
作者单位	[Soliman, Nehal Mohamed] Natl Author Remote Sensing & Space Sci NARSS, Cairo 1564, Egypt; [El-Desoky, Hatem Mohamed; Heikal, Mohamed Ahmed; Abdel-Rahman, Ahmed Mohamed] Al Azhar Univ, Dept Geol, Fac Sci, Box 11884, Cairo, Egypt
推荐引用方式 GB/T 7714	Soliman, Nehal Mohamed,El-Desoky, Hatem Mohamed,Heikal, Mohamed Ahmed,et al. Using ASTER images and field work data for geological mapping around Wadi Umm Ashira and Wadi Tilal Al-Qulieb, Northwestern part of Wadi Allaqi, South Eastern Desert, Egypt[J],2021,14(18).
APA	Soliman, Nehal Mohamed,El-Desoky, Hatem Mohamed,Heikal, Mohamed Ahmed,&Abdel-Rahman, Ahmed Mohamed.(2021).Using ASTER images and field work data for geological mapping around Wadi Umm Ashira and Wadi Tilal Al-Qulieb, Northwestern part of Wadi Allaqi, South Eastern Desert, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,14(18).
MLA	Soliman, Nehal Mohamed,et al."Using ASTER images and field work data for geological mapping around Wadi Umm Ashira and Wadi Tilal Al-Qulieb, Northwestern part of Wadi Allaqi, South Eastern Desert, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 14.18(2021).