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354753

Remote Sensing-Based Lithological Mapping of the Qena-Safaga Shear Zone Juxtaposing Northern and Central Tectonic Provinces of The Egyptian Nubian Shield

Article

Last updated: 28 Dec 2024

Subjects

-

Tags

Applied and Basic Science.

Abstract

Integration of remote sensing data (Landsat- 8, ASTER and Sentinel 2A) with field and petrographic studies is utilized to update the lithological/geological mapping of the central Qena-Safaga Shear Zone that juxtaposes the Northern Extensional Province against the Central Transpressional Province of the Egyptian Nubian Shield. The Neoproterozoic basement succession in the study area is classified into ophiolitic mélange, syn- tectonic granitoids, late- tectonic granitoids, Dokhan Volcanics and post- tectonic granitoids. These rock suits are dissected by NE-SW oriented dikes and NE-SW and NW-SE trending strike-slip faults. A number of remote sensing techniques (e.g., False Color Composites; FCC, Band Ratios; BR, Principal Component Analysis; PCA and Image Classification) were applied in the verification of the exposed litho-units. The FCC (RGB 7 5 3 for Landsat- 8 and 10 11 6 for Sentinel 2A), PCA (RGB 1 2 3, 3 2 1 and 6 4 3 for Landsat- 8;  RGB 6 5 7 for Sentinel 2 A; and RGB 1 2 4 for ASTER), BR (RGB 4/3, 6/7, 6/5 for Landsat-8; and RGB 1/3, (5/3/+ ½), 5/7 for ASTER) and Supervised Classification including parallepiped method and Maximum Likelihood for Sentinel 2A are effective remote sensing techniques in rock discrimination. Besides, some alteration zones were recognized including phyllic (muscovite, b7/b6 for ASTER), ferrous silicates (chlorite, b5/b6 for Landsat-8), carbonate (calcite, b6/b7 for Landsat-8), kaolinite (b7/b5 for ASTER) and hydroxyl group (alunite, b4/b5 for ASTER). Such alterations exhibit bright pixels depending on the DN band threshold (DN band threshold= mean + 2* standard deviation).

DOI

10.21608/bjas.2024.281689.1398

Keywords

Qena-Safaga Shear Zone, Landsat-8, ASTER, Sentinel 2A, Mineral indices, Egyptian Nubian Shield

Authors

First Name

Asmaa

Last Name

.E.El-Araby

MiddleName

-

Affiliation

Geology Department, Faculty of Science, Benha University, Benha 13518, Egypt,Egypt

Email

asmaageol@gmail.com

City

-

Orcid

-

First Name

Wael.

Last Name

D.Hagag

MiddleName

-

Affiliation

Geology Department, Faculty of Science, Benha University, Benha 13518, Egypt

Email

waelhagag78@yahoo.com

City

-

Orcid

-

First Name

Samir

Last Name

.Z.Kamh

MiddleName

-

Affiliation

Geology Department, Faculty of Science, Tanta University, Tanta 31527, Egypt

Email

skamh2002@yahoo.com

City

-

Orcid

-

First Name

Zakaria

Last Name

.E.Hamimi

MiddleName

-

Affiliation

Geology Department, Faculty of Science, Benha University, Benha 13518, Egypt

Email

zakariahamimi4@gmail.com

City

-

Orcid

-

Volume

9

Article Issue

3

Related Issue

46895

Issue Date

2024-03-01

Receive Date

2024-03-05

Publish Date

2024-03-01

Page Start

197

Page End

206

Print ISSN

2356-9751

Online ISSN

2356-976X

Link

https://bjas.journals.ekb.eg/article_354753.html

Detail API

https://bjas.journals.ekb.eg/service?article_code=354753

Order

25

Type

Original Research Papers

Type Code

1,647

Publication Type

Journal

Publication Title

Benha Journal of Applied Sciences

Publication Link

https://bjas.journals.ekb.eg/

MainTitle

Remote Sensing-Based Lithological Mapping of the Qena-Safaga Shear Zone Juxtaposing Northern and Central Tectonic Provinces of The Egyptian Nubian Shield

Details

Type

Article

Created At

28 Dec 2024