Arid
DOI10.1007/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, Hatem1; Abdelhalim, Ahmed2; Hamimi, Zakaria3; Al-Gabali, Majid4
Corresponding AuthorAboelkhair, Hatem
JournalARABIAN JOURNAL OF GEOSCIENCES
ISSN1866-7511
EISSN1866-7538
Year Published2020
Volume13Issue:7
Abstract in English

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.


Keyword in EnglishArabian-Nubian Shield Basement complex Berenice ASTER Remote sensing
SubtypeArticle
Language英语
CountryEgypt ; Yemen
Indexed BySCI-E
WOS IDWOS:000522031700002
WOS KeywordCENTRAL EASTERN DESERT ; ARABIAN-NUBIAN SHIELD ; ALTERATION ZONES ; EXPLORATION ; DISTRICT ; AREA ; GRANITES ; GEOLOGY ; IMAGERY ; MAP
WOS SubjectGeosciences, Multidisciplinary
WOS Research AreaGeology
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/314092
Affiliation1.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
Recommended Citation
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).
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