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Mapping the Alteration Zones for Uranium Exploration in Gabal Abu Garadi Area Central Eastern Desert, Egypt, Using Aster Data

Received: 16 February 2021     Accepted: 15 March 2021     Published: 23 April 2021
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Abstract

The integration of the ASTER image processing and the airborne spectrometric Gamma-Ray interpretation helped in identifying the types and illustrating the distributions of the probable sites for radioactive mineralization at the Gabal Abu Garadi area. Appling various techniques of image processing for Landsat OLI and ASTER satellite to discrimination the differently exposed rock units and extract major and minor structural lineaments. This study resulted that the ASTER VNIR-SWIR bands are effectively used for clarifying the sericite, kaolinite, chlorite, illite and hematite bearing alteration zones, whereas the ASTER TIR bands are most effective in delineation of the silica-rich zones which could be pathfinders for radioactive mineralization within the study area. The resultant alteration maps show good coincidence with the explored uranium sites and suggest further similar unexplored sites. The predominance of low eTh/eU= 1.31 indicates U mobilization and reveals that magmatic differentiation was not the sole process responsible for the concentration of these radioactive elements in the Abu Gradi area. Where the presence of adequate structures such as shear zones and fault planes facilitates the circulation of hydrothermal fluids and meteoric waters leading to mobilization and a redistribution of uranium. This paper could assist the principals of uranium exploration techniques.

Published in Earth Sciences (Volume 10, Issue 2)
DOI 10.11648/j.earth.20211002.11
Page(s) 36-48
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Abu Garadi, Remote Sensing, Radioactive Mineralization, GIS Data, Eastern Desert

References
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[8] El Said, M., Abo Elkhair, H., Dardier, A., Hermas, S and Urai Minoru. (2014) Processing of Multispectral ASTER Data for Mapping Alteration Minerals Zones: As an Aid for Uranium Exploration in Elmissikat-Eleridiya Granites, Central Eastern Desert, Egypt. The open Geology Journal, 2014, 8, (sup 11: M5) 69-83.
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Cite This Article
  • APA Style

    Nehal Mohamed Soliman, Moustafa Bayoumi Bayoumi, Salem Mohamed Salem. (2021). Mapping the Alteration Zones for Uranium Exploration in Gabal Abu Garadi Area Central Eastern Desert, Egypt, Using Aster Data. Earth Sciences, 10(2), 36-48. https://doi.org/10.11648/j.earth.20211002.11

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    ACS Style

    Nehal Mohamed Soliman; Moustafa Bayoumi Bayoumi; Salem Mohamed Salem. Mapping the Alteration Zones for Uranium Exploration in Gabal Abu Garadi Area Central Eastern Desert, Egypt, Using Aster Data. Earth Sci. 2021, 10(2), 36-48. doi: 10.11648/j.earth.20211002.11

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    AMA Style

    Nehal Mohamed Soliman, Moustafa Bayoumi Bayoumi, Salem Mohamed Salem. Mapping the Alteration Zones for Uranium Exploration in Gabal Abu Garadi Area Central Eastern Desert, Egypt, Using Aster Data. Earth Sci. 2021;10(2):36-48. doi: 10.11648/j.earth.20211002.11

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  • @article{10.11648/j.earth.20211002.11,
      author = {Nehal Mohamed Soliman and Moustafa Bayoumi Bayoumi and Salem Mohamed Salem},
      title = {Mapping the Alteration Zones for Uranium Exploration in Gabal Abu Garadi Area Central Eastern Desert, Egypt, Using Aster Data},
      journal = {Earth Sciences},
      volume = {10},
      number = {2},
      pages = {36-48},
      doi = {10.11648/j.earth.20211002.11},
      url = {https://doi.org/10.11648/j.earth.20211002.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20211002.11},
      abstract = {The integration of the ASTER image processing and the airborne spectrometric Gamma-Ray interpretation helped in identifying the types and illustrating the distributions of the probable sites for radioactive mineralization at the Gabal Abu Garadi area. Appling various techniques of image processing for Landsat OLI and ASTER satellite to discrimination the differently exposed rock units and extract major and minor structural lineaments. This study resulted that the ASTER VNIR-SWIR bands are effectively used for clarifying the sericite, kaolinite, chlorite, illite and hematite bearing alteration zones, whereas the ASTER TIR bands are most effective in delineation of the silica-rich zones which could be pathfinders for radioactive mineralization within the study area. The resultant alteration maps show good coincidence with the explored uranium sites and suggest further similar unexplored sites. The predominance of low eTh/eU= 1.31 indicates U mobilization and reveals that magmatic differentiation was not the sole process responsible for the concentration of these radioactive elements in the Abu Gradi area. Where the presence of adequate structures such as shear zones and fault planes facilitates the circulation of hydrothermal fluids and meteoric waters leading to mobilization and a redistribution of uranium. This paper could assist the principals of uranium exploration techniques.},
     year = {2021}
    }
    

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    AU  - Nehal Mohamed Soliman
    AU  - Moustafa Bayoumi Bayoumi
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    UR  - https://doi.org/10.11648/j.earth.20211002.11
    AB  - The integration of the ASTER image processing and the airborne spectrometric Gamma-Ray interpretation helped in identifying the types and illustrating the distributions of the probable sites for radioactive mineralization at the Gabal Abu Garadi area. Appling various techniques of image processing for Landsat OLI and ASTER satellite to discrimination the differently exposed rock units and extract major and minor structural lineaments. This study resulted that the ASTER VNIR-SWIR bands are effectively used for clarifying the sericite, kaolinite, chlorite, illite and hematite bearing alteration zones, whereas the ASTER TIR bands are most effective in delineation of the silica-rich zones which could be pathfinders for radioactive mineralization within the study area. The resultant alteration maps show good coincidence with the explored uranium sites and suggest further similar unexplored sites. The predominance of low eTh/eU= 1.31 indicates U mobilization and reveals that magmatic differentiation was not the sole process responsible for the concentration of these radioactive elements in the Abu Gradi area. Where the presence of adequate structures such as shear zones and fault planes facilitates the circulation of hydrothermal fluids and meteoric waters leading to mobilization and a redistribution of uranium. This paper could assist the principals of uranium exploration techniques.
    VL  - 10
    IS  - 2
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Author Information
  • National Authority for Remote Sensing and Space Sciences (NARSS), Cairo, Egypt

  • Nuclear Materials Authority (NMA), Cairo, Egypt

  • National Authority for Remote Sensing and Space Sciences (NARSS), Cairo, Egypt

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