干旱区生态环境知识资源中心(Arid): Reliability of using ASTER data in lithologic mapping and alteration mineral detection of the basement complex of West Berenice, Southeastern Desert, Egypt

Arid

DOI	10.1007/s12517-020-5227-x
	Reliability of using ASTER data in lithologic mapping and alteration mineral detection of the basement complex of West Berenice, Southeastern Desert, Egypt
	Aboelkhair, Hatem 1; Abdelhalim, Ahmed 2; Hamimi, Zakaria 3; Al-Gabali, Majid 4
通讯作者	Aboelkhair, Hatem
来源期刊	ARABIAN JOURNAL OF GEOSCIENCES
ISSN	1866-7511
EISSN	1866-7538
出版年	2020
卷号	13 期号:7
英文摘要	The Neoproterozoic basement complex of Egypt outcrops in the Eastern Desert (ED) and southern Sinai, and is regarded to represent the northwestern continuation of the Arabian-Nubian Shield (ANS). The area west of Berenice has been given little attention, although it represents the key to understanding the geologic history of the South Eastern Desert and the entire ED. The present work is an integrated study using remote sensing (Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data imagery) and field-structural data to assess their utility in lithologic mapping and in detecting alteration mineral zones with considerable accuracy. A false-color-composite image, color-ratio composite image, decorrelation stretch, mafic index (MI), and quartz index (QI) were used to discriminate and map the various rock units. Correlation of False-color images of the ASTER band combination (7, 3, 1) with previous lithological mapping studies of the study area allow preliminary discrimination of different lithologies and drawing a base map. Subsequently, ASTER band ratios tested (4/1, 3/1, 12/14) and (4/7, 4/6, 4/10) with the ground truth data were used to refine the base map and construct the digital detailed geologic map. Petrographically, the investigated rock samples show kaolinite, chlorite, and epidote in alteration zones. The spectral angle mapper (SAM)-supervised classification using reference spectra of the USGS spectral library was used for detecting alteration zones. For verification, total accuracy assessment was carried out to evaluate the band combination and band ratios used in the lithologic mapping. That reached to 85.01% for band ratio 4/1, 3/1, 12/14 in RGB.
英文关键词	Arabian-Nubian Shield Basement complex Berenice ASTER Remote sensing
类型	Article
语种	英语
国家	Egypt ; Yemen
收录类别	SCI-E
WOS记录号	WOS:000522031700002
WOS关键词	CENTRAL EASTERN DESERT ; ARABIAN-NUBIAN SHIELD ; ALTERATION ZONES ; EXPLORATION ; DISTRICT ; AREA ; GRANITES ; GEOLOGY ; IMAGERY ; MAP
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/2XILL650/314092
作者单位	1.Damietta Univ, CSRA, New Damietta, Egypt; 2.Cairo Univ, Fac Sci, Dept Geol, Giza, Egypt; 3.Benha Univ, Fac Sci, Dept Geol, Banha 13518, Egypt; 4.Thamar Univ, Dept Geol & Environm, Dhamar, Yemen
推荐引用方式 GB/T 7714	Aboelkhair, Hatem,Abdelhalim, Ahmed,Hamimi, Zakaria,et al. Reliability of using ASTER data in lithologic mapping and alteration mineral detection of the basement complex of West Berenice, Southeastern Desert, Egypt[J],2020,13(7).
APA	Aboelkhair, Hatem,Abdelhalim, Ahmed,Hamimi, Zakaria,&Al-Gabali, Majid.(2020).Reliability of using ASTER data in lithologic mapping and alteration mineral detection of the basement complex of West Berenice, Southeastern Desert, Egypt.ARABIAN JOURNAL OF GEOSCIENCES,13(7).
MLA	Aboelkhair, Hatem,et al."Reliability of using ASTER data in lithologic mapping and alteration mineral detection of the basement complex of West Berenice, Southeastern Desert, Egypt".ARABIAN JOURNAL OF GEOSCIENCES 13.7(2020).