干旱区生态环境知识资源中心(Arid): Detection of alteration zones using ASTER imagery and geological field observations: Al Wajh area, Northwestern Arabian Shield, Saudi Arabia

Arid

DOI	10.1007/s12517-020-05818-5
	Detection of alteration zones using ASTER imagery and geological field observations: Al Wajh area, Northwestern Arabian Shield, Saudi Arabia
	AlKashghari, Wadee A.; Matsah, Mohamed; Baggazi, Haitham M.; EL-Sawy, El-Sawy K.; Elfakharani, Abdelhamid; El-Shafei, Mohamed K.
通讯作者	Baggazi, HM
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:16
英文摘要	Neoproterozoic rocks are exposed in the southwestern Midyan terrane, which is located in the northwestern Arabian Shield. This terrane contains ophiolitic and metavolcanic rocks and arc-related intrusions. A NW-trending sinistral fault system (Najd Fault System, NFS) affected these Neoproterozoic rocks. The integration of remote sensing techniques, such as band combinations and band ratios of ASTER images, with field observations, helped to discriminate sulfide-rich rocks and to delineate alteration zones, gossans, and quartz veins, which commonly host ore mineralization. The band ratios used were the Al-OH minerals/advanced argillic alteration and the silica and Fe2+ band ratios. ASTER images were used to discriminate different rock units and construct an alteration map of the study area. Additionally, principal component analysis and frequency filtering techniques for ASTER images were used to extract linear faults and shear zone structures. Remote sensing ASTER images helped in the discovery of ancient mines that had not been previously recorded in the study area.
英文关键词	Midyan terrane Najd Fault System Alteration zones ASTER imagery Gossan Sulfide-rich rocks Band combinations
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000561112800003
WOS关键词	NAJD FAULT SYSTEM ; EASTERN DESERT ; ALTERED ROCKS ; EVOLUTION ; MINERALS ; TERRANE ; NEVADA ; SUTURE
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/2XILL650/325718
作者单位	[AlKashghari, Wadee A.] Saudi Geol Survey, Geol Survey Dept, Jeddah, Saudi Arabia; [Matsah, Mohamed; Baggazi, Haitham M.; EL-Sawy, El-Sawy K.; Elfakharani, Abdelhamid] King Abdulaziz Univ, Fac Earth Sci, Struct Geol & Remote Sensing Dept, POB 80206, Jeddah 21589, Saudi Arabia; [EL-Sawy, El-Sawy K.] Al Azhar Univ, Fac Sci, Geol Dept, Assiut Branch, Assiut, Egypt; [Elfakharani, Abdelhamid] Aswan Univ, Fac Sci, Geol Dept, Aswan, Egypt; [El-Shafei, Mohamed K.] Suez Canal Univ, Fac Sci, Geol Dept, Ismailia, Egypt
推荐引用方式 GB/T 7714	AlKashghari, Wadee A.,Matsah, Mohamed,Baggazi, Haitham M.,et al. Detection of alteration zones using ASTER imagery and geological field observations: Al Wajh area, Northwestern Arabian Shield, Saudi Arabia[J],2020,13(16).
APA	AlKashghari, Wadee A.,Matsah, Mohamed,Baggazi, Haitham M.,EL-Sawy, El-Sawy K.,Elfakharani, Abdelhamid,&El-Shafei, Mohamed K..(2020).Detection of alteration zones using ASTER imagery and geological field observations: Al Wajh area, Northwestern Arabian Shield, Saudi Arabia.ARABIAN JOURNAL OF GEOSCIENCES,13(16).
MLA	AlKashghari, Wadee A.,et al."Detection of alteration zones using ASTER imagery and geological field observations: Al Wajh area, Northwestern Arabian Shield, Saudi Arabia".ARABIAN JOURNAL OF GEOSCIENCES 13.16(2020).