干旱区生态环境知识资源中心(Arid): Imaging of hydrothermal altered zones in Wadi Al-Bana, in southern Yemen, using remote sensing techniques and very low frequency-electromagnetic data

Arid

DOI	10.1007/s12517-019-4702-8
	Imaging of hydrothermal altered zones in Wadi Al-Bana, in southern Yemen, using remote sensing techniques and very low frequency-electromagnetic data
	Farag, Karam S. I.; Howari, Fares M.; Abdelmalik, Karim W.
通讯作者	Abdelmalik, KW (corresponding author), Ain Shams Univ, Fac Sci, Geol Dept, Cairo 11566, Egypt.
会议名称	1st International Conference of the Arabian-Geosciences-Union (ARABGU)
会议日期	FEB 17-22, 2016
会议地点	Algiers, ALGERIA
英文摘要	Economic mineralization and hydrothermally altered zones are areas of great economic interests. This study focusses on hydrothermal altered zones of high mineralization potentials in Wadi Al-Bana, in southern Yemen. An azimuthal very low frequency-electromagnetic (AVLF-EM) data acquisition was conducted in search for mineralization in the study area. The study integrated observations from geophysical field data with others extracted from object-oriented principal component analysis (PCA) to better map and understand mineralization in the investigated area. This technique was applied to two data sets, ASTER and Landsat 8 Operational Land Imager (OLI) imagery. The results of PCA revealed high accuracy in detecting alteration minerals and for mapping zones of high concentration of these minerals. The PCA-based distribution of selected alteration zones correlated spatially with high conductivity anomalies in the subsurface that were detected by VLF measurements. Finally, a GIS model was built and successfully utilized to categorize the resulted altered zones, into three levels.
英文关键词	Azimuthal VLF-EM survey Remote sensing Object-oriented PCA Hydrothermal alteration Mineral exploration
来源出版物	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2019
卷号	12
期号	18
出版者	SPRINGER HEIDELBERG
类型	Article; Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000483767500001
WOS关键词	EASTERN DESERT ; FIELD ; INTEGRATION ; MINERALS ; RADIANCE ; IMAGERY ; SINAI ; GULF
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369961
作者单位	[Farag, Karam S. I.] Ain Shams Univ, Fac Sci, Geophys Dept, Cairo 11566, Egypt; [Howari, Fares M.] Zayed Univ, Coll Nat & Hlth Sci, Abu Dhabi, U Arab Emirates; [Abdelmalik, Karim W.] Ain Shams Univ, Fac Sci, Geol Dept, Cairo 11566, Egypt
推荐引用方式 GB/T 7714	Farag, Karam S. I.,Howari, Fares M.,Abdelmalik, Karim W.. Imaging of hydrothermal altered zones in Wadi Al-Bana, in southern Yemen, using remote sensing techniques and very low frequency-electromagnetic data[C]:SPRINGER HEIDELBERG,2019.