Natural Isotopic Activity Ratios as Evidence of Migration and Leaching of Uranium in Egyptian Granitic Rocks
Gamma-spectrometry was utilized to analyse radionuclides in granitic rocks from the El Eridiya area through radiometric measurements. The activity concentration of 238 U ranges from 3493±83 to 5209±104 Bq kg −1 , while for 234 U and its isotope ( 235 U), it varies from 957±32 to 1012±34 Bq kg −1 and...
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| description | Gamma-spectrometry was utilized to analyse radionuclides in granitic rocks from the El Eridiya area through radiometric measurements. The activity concentration of
238
U ranges from 3493±83 to 5209±104 Bq kg
−1
, while for
234
U and its isotope (
235
U), it varies from 957±32 to 1012±34 Bq kg
−1
and 153.0±4.5 to 256.0±5.5 Bq kg
−1
, respectively. However, for the isotopes
230
Th and
232
Th, the range is from 11217±254 to 16291±305 Bq kg
−1
and 31.0±1.1 to 85.3±0.5 Bq kg
−1
, respectively. The activity concentration of 40K ranged from 67.9±1.6 to 109.0±2.1 Bq kg
−1
. The ratios of
234
U/
238
U in the studied granitic rock samples vary from 0.21±0.01 to 0.54±0.03. Due to the current oxidising conditions, most of the rock samples show a higher presence of
234
U compared to
238
U, with
234
U/
238
U activity ratios below one. Additionally, the activity ratios of
232
Th/
238
U range from 0.006 to 0.019 in the granitic rock samples from the El Eridiya area. Figures 3 and 4 display uranium enrichment, with all samples showing
232
Th/
238
U ratios below one for the earth’s crust. Additionally, all samples showed
230
Th/
238
U and
230
Th/
234
U activity levels above one, suggesting preferential leaching of uranium in an oxygen-rich setting. Similarly, the
234
U/
238
U and
230
Th/2
38
U activity ratios are below and above one, indicating U-leaching and U-accumulation, respectively. Figure 3 and 4 show uranium enrichment, with all samples having
232
Th/
238
U activity ratios below one for the earth’s crust. There were benefits to uranium leaching in an environment with oxidation in all samples, with
230
Th/
238
U and
230
Th/
234
U activity ratios exceeding one. If the
234
U/
238
U activity ratio is lower than one but the
230
Th/
238
U activity ratio is higher than 1, it suggests U-leaching; if the
234
U/
238
U activity ratio is greater than one and the
230
Th/
238
U activity ratio is less than 1, it suggests U-accumulation. |
| doi_str_mv | 10.1088/1742-6596/2830/1/012022 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_iop_j</sourceid><recordid>TN_cdi_proquest_journals_3106720652</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3106720652</sourcerecordid><originalsourceid>FETCH-LOGICAL-c1692-c14fda29edeb82d6e3042e25c8f2ae4cea51ae9e684a98661de3a021b0c8591d3</originalsourceid><addsrcrecordid>eNqFkF1LwzAUhoMoOKe_wYDXs0napunlGFMHU2G463CWpjNzS2qSDvbvbanMS3ORHPJ-HHgQuqfkkRIhElpkbMLzkidMpCShCaGMMHaBRmfl8jwLcY1uQtgRknanGKH9G8TWwx4vgouuMQpPVTRHE094BdG4gCHg-dFU2iqNXY1fzdb3gsVgK7zUoD6N3fbK2oM17QEbi-fbUxMNWPzc_8WudeXUV7hFVzXsg777fcdo_TT_mL1Mlu_Pi9l0OVGUl6y7s7oCVupKbwSruE5JxjTLlagZ6ExpyCnoUnORQSk4p5VOgTC6IUrkJa3SMXoYehvvvlsdoty51ttupUwp4QUjPGedqxhcyrsQvK5l480B_ElSInu0socme4CyRyupHNB2yXRIGtf8Vf-X-gGKoXus</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>3106720652</pqid></control><display><type>article</type><title>Natural Isotopic Activity Ratios as Evidence of Migration and Leaching of Uranium in Egyptian Granitic Rocks</title><source>Institute of Physics IOPscience extra</source><source>EZB-FREE-00999 freely available EZB journals</source><source>Institute of Physics Open Access Journal Titles</source><source>Alma/SFX Local Collection</source><source>Free Full-Text Journals in Chemistry</source><creator>Ismaiel, Nahla A. ; Frag, Eman Y. ; Seif, W. M. ; Mira, Hamed I. ; Shabasy, Ahmed M. ; Khattab, Mahmoud R.</creator><creatorcontrib>Ismaiel, Nahla A. ; Frag, Eman Y. ; Seif, W. M. ; Mira, Hamed I. ; Shabasy, Ahmed M. ; Khattab, Mahmoud R.</creatorcontrib><description>Gamma-spectrometry was utilized to analyse radionuclides in granitic rocks from the El Eridiya area through radiometric measurements. The activity concentration of
238
U ranges from 3493±83 to 5209±104 Bq kg
−1
, while for
234
U and its isotope (
235
U), it varies from 957±32 to 1012±34 Bq kg
−1
and 153.0±4.5 to 256.0±5.5 Bq kg
−1
, respectively. However, for the isotopes
230
Th and
232
Th, the range is from 11217±254 to 16291±305 Bq kg
−1
and 31.0±1.1 to 85.3±0.5 Bq kg
−1
, respectively. The activity concentration of 40K ranged from 67.9±1.6 to 109.0±2.1 Bq kg
−1
. The ratios of
234
U/
238
U in the studied granitic rock samples vary from 0.21±0.01 to 0.54±0.03. Due to the current oxidising conditions, most of the rock samples show a higher presence of
234
U compared to
238
U, with
234
U/
238
U activity ratios below one. Additionally, the activity ratios of
232
Th/
238
U range from 0.006 to 0.019 in the granitic rock samples from the El Eridiya area. Figures 3 and 4 display uranium enrichment, with all samples showing
232
Th/
238
U ratios below one for the earth’s crust. Additionally, all samples showed
230
Th/
238
U and
230
Th/
234
U activity levels above one, suggesting preferential leaching of uranium in an oxygen-rich setting. Similarly, the
234
U/
238
U and
230
Th/2
38
U activity ratios are below and above one, indicating U-leaching and U-accumulation, respectively. Figure 3 and 4 show uranium enrichment, with all samples having
232
Th/
238
U activity ratios below one for the earth’s crust. There were benefits to uranium leaching in an environment with oxidation in all samples, with
230
Th/
238
U and
230
Th/
234
U activity ratios exceeding one. If the
234
U/
238
U activity ratio is lower than one but the
230
Th/
238
U activity ratio is higher than 1, it suggests U-leaching; if the
234
U/
238
U activity ratio is greater than one and the
230
Th/
238
U activity ratio is less than 1, it suggests U-accumulation.</description><identifier>ISSN: 1742-6588</identifier><identifier>EISSN: 1742-6596</identifier><identifier>DOI: 10.1088/1742-6596/2830/1/012022</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Accumulation ; Earth ; Earth crust ; Granites ; Isotopes ; Leaching ; Migration ; Oxidation ; Radioactivity ; Radioisotopes ; Radionuclides ; Ratios ; Rocks ; Thorium isotopes ; Uranium ; Uranium 234 ; Uranium 238</subject><ispartof>Journal of physics. Conference series, 2024-09, Vol.2830 (1), p.12022</ispartof><rights>Published under licence by IOP Publishing Ltd</rights><rights>Published under licence by IOP Publishing Ltd. This work is published under https://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c1692-c14fda29edeb82d6e3042e25c8f2ae4cea51ae9e684a98661de3a021b0c8591d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1742-6596/2830/1/012022/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>314,776,780,27901,27902,38845,38867,53815,53842</link.rule.ids></links><search><creatorcontrib>Ismaiel, Nahla A.</creatorcontrib><creatorcontrib>Frag, Eman Y.</creatorcontrib><creatorcontrib>Seif, W. M.</creatorcontrib><creatorcontrib>Mira, Hamed I.</creatorcontrib><creatorcontrib>Shabasy, Ahmed M.</creatorcontrib><creatorcontrib>Khattab, Mahmoud R.</creatorcontrib><title>Natural Isotopic Activity Ratios as Evidence of Migration and Leaching of Uranium in Egyptian Granitic Rocks</title><title>Journal of physics. Conference series</title><addtitle>J. Phys.: Conf. Ser</addtitle><description>Gamma-spectrometry was utilized to analyse radionuclides in granitic rocks from the El Eridiya area through radiometric measurements. The activity concentration of
238
U ranges from 3493±83 to 5209±104 Bq kg
−1
, while for
234
U and its isotope (
235
U), it varies from 957±32 to 1012±34 Bq kg
−1
and 153.0±4.5 to 256.0±5.5 Bq kg
−1
, respectively. However, for the isotopes
230
Th and
232
Th, the range is from 11217±254 to 16291±305 Bq kg
−1
and 31.0±1.1 to 85.3±0.5 Bq kg
−1
, respectively. The activity concentration of 40K ranged from 67.9±1.6 to 109.0±2.1 Bq kg
−1
. The ratios of
234
U/
238
U in the studied granitic rock samples vary from 0.21±0.01 to 0.54±0.03. Due to the current oxidising conditions, most of the rock samples show a higher presence of
234
U compared to
238
U, with
234
U/
238
U activity ratios below one. Additionally, the activity ratios of
232
Th/
238
U range from 0.006 to 0.019 in the granitic rock samples from the El Eridiya area. Figures 3 and 4 display uranium enrichment, with all samples showing
232
Th/
238
U ratios below one for the earth’s crust. Additionally, all samples showed
230
Th/
238
U and
230
Th/
234
U activity levels above one, suggesting preferential leaching of uranium in an oxygen-rich setting. Similarly, the
234
U/
238
U and
230
Th/2
38
U activity ratios are below and above one, indicating U-leaching and U-accumulation, respectively. Figure 3 and 4 show uranium enrichment, with all samples having
232
Th/
238
U activity ratios below one for the earth’s crust. There were benefits to uranium leaching in an environment with oxidation in all samples, with
230
Th/
238
U and
230
Th/
234
U activity ratios exceeding one. If the
234
U/
238
U activity ratio is lower than one but the
230
Th/
238
U activity ratio is higher than 1, it suggests U-leaching; if the
234
U/
238
U activity ratio is greater than one and the
230
Th/
238
U activity ratio is less than 1, it suggests U-accumulation.</description><subject>Accumulation</subject><subject>Earth</subject><subject>Earth crust</subject><subject>Granites</subject><subject>Isotopes</subject><subject>Leaching</subject><subject>Migration</subject><subject>Oxidation</subject><subject>Radioactivity</subject><subject>Radioisotopes</subject><subject>Radionuclides</subject><subject>Ratios</subject><subject>Rocks</subject><subject>Thorium isotopes</subject><subject>Uranium</subject><subject>Uranium 234</subject><subject>Uranium 238</subject><issn>1742-6588</issn><issn>1742-6596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><sourceid>O3W</sourceid><sourceid>BENPR</sourceid><recordid>eNqFkF1LwzAUhoMoOKe_wYDXs0napunlGFMHU2G463CWpjNzS2qSDvbvbanMS3ORHPJ-HHgQuqfkkRIhElpkbMLzkidMpCShCaGMMHaBRmfl8jwLcY1uQtgRknanGKH9G8TWwx4vgouuMQpPVTRHE094BdG4gCHg-dFU2iqNXY1fzdb3gsVgK7zUoD6N3fbK2oM17QEbi-fbUxMNWPzc_8WudeXUV7hFVzXsg777fcdo_TT_mL1Mlu_Pi9l0OVGUl6y7s7oCVupKbwSruE5JxjTLlagZ6ExpyCnoUnORQSk4p5VOgTC6IUrkJa3SMXoYehvvvlsdoty51ttupUwp4QUjPGedqxhcyrsQvK5l480B_ElSInu0socme4CyRyupHNB2yXRIGtf8Vf-X-gGKoXus</recordid><startdate>20240901</startdate><enddate>20240901</enddate><creator>Ismaiel, Nahla A.</creator><creator>Frag, Eman Y.</creator><creator>Seif, W. M.</creator><creator>Mira, Hamed I.</creator><creator>Shabasy, Ahmed M.</creator><creator>Khattab, Mahmoud R.</creator><general>IOP Publishing</general><scope>O3W</scope><scope>TSCCA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>L7M</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope></search><sort><creationdate>20240901</creationdate><title>Natural Isotopic Activity Ratios as Evidence of Migration and Leaching of Uranium in Egyptian Granitic Rocks</title><author>Ismaiel, Nahla A. ; Frag, Eman Y. ; Seif, W. M. ; Mira, Hamed I. ; Shabasy, Ahmed M. ; Khattab, Mahmoud R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1692-c14fda29edeb82d6e3042e25c8f2ae4cea51ae9e684a98661de3a021b0c8591d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Accumulation</topic><topic>Earth</topic><topic>Earth crust</topic><topic>Granites</topic><topic>Isotopes</topic><topic>Leaching</topic><topic>Migration</topic><topic>Oxidation</topic><topic>Radioactivity</topic><topic>Radioisotopes</topic><topic>Radionuclides</topic><topic>Ratios</topic><topic>Rocks</topic><topic>Thorium isotopes</topic><topic>Uranium</topic><topic>Uranium 234</topic><topic>Uranium 238</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ismaiel, Nahla A.</creatorcontrib><creatorcontrib>Frag, Eman Y.</creatorcontrib><creatorcontrib>Seif, W. M.</creatorcontrib><creatorcontrib>Mira, Hamed I.</creatorcontrib><creatorcontrib>Shabasy, Ahmed M.</creatorcontrib><creatorcontrib>Khattab, Mahmoud R.</creatorcontrib><collection>Institute of Physics Open Access Journal Titles</collection><collection>IOPscience (Open Access)</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection (ProQuest)</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>Publicly Available Content (ProQuest)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><jtitle>Journal of physics. Conference series</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ismaiel, Nahla A.</au><au>Frag, Eman Y.</au><au>Seif, W. M.</au><au>Mira, Hamed I.</au><au>Shabasy, Ahmed M.</au><au>Khattab, Mahmoud R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Natural Isotopic Activity Ratios as Evidence of Migration and Leaching of Uranium in Egyptian Granitic Rocks</atitle><jtitle>Journal of physics. Conference series</jtitle><addtitle>J. Phys.: Conf. Ser</addtitle><date>2024-09-01</date><risdate>2024</risdate><volume>2830</volume><issue>1</issue><spage>12022</spage><pages>12022-</pages><issn>1742-6588</issn><eissn>1742-6596</eissn><abstract>Gamma-spectrometry was utilized to analyse radionuclides in granitic rocks from the El Eridiya area through radiometric measurements. The activity concentration of
238
U ranges from 3493±83 to 5209±104 Bq kg
−1
, while for
234
U and its isotope (
235
U), it varies from 957±32 to 1012±34 Bq kg
−1
and 153.0±4.5 to 256.0±5.5 Bq kg
−1
, respectively. However, for the isotopes
230
Th and
232
Th, the range is from 11217±254 to 16291±305 Bq kg
−1
and 31.0±1.1 to 85.3±0.5 Bq kg
−1
, respectively. The activity concentration of 40K ranged from 67.9±1.6 to 109.0±2.1 Bq kg
−1
. The ratios of
234
U/
238
U in the studied granitic rock samples vary from 0.21±0.01 to 0.54±0.03. Due to the current oxidising conditions, most of the rock samples show a higher presence of
234
U compared to
238
U, with
234
U/
238
U activity ratios below one. Additionally, the activity ratios of
232
Th/
238
U range from 0.006 to 0.019 in the granitic rock samples from the El Eridiya area. Figures 3 and 4 display uranium enrichment, with all samples showing
232
Th/
238
U ratios below one for the earth’s crust. Additionally, all samples showed
230
Th/
238
U and
230
Th/
234
U activity levels above one, suggesting preferential leaching of uranium in an oxygen-rich setting. Similarly, the
234
U/
238
U and
230
Th/2
38
U activity ratios are below and above one, indicating U-leaching and U-accumulation, respectively. Figure 3 and 4 show uranium enrichment, with all samples having
232
Th/
238
U activity ratios below one for the earth’s crust. There were benefits to uranium leaching in an environment with oxidation in all samples, with
230
Th/
238
U and
230
Th/
234
U activity ratios exceeding one. If the
234
U/
238
U activity ratio is lower than one but the
230
Th/
238
U activity ratio is higher than 1, it suggests U-leaching; if the
234
U/
238
U activity ratio is greater than one and the
230
Th/
238
U activity ratio is less than 1, it suggests U-accumulation.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1742-6596/2830/1/012022</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of physics. Conference series, 2024-09, Vol.2830 (1), p.12022 |
| issn | 1742-6588 1742-6596 |
| language | eng |
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| source | Institute of Physics IOPscience extra; EZB-FREE-00999 freely available EZB journals; Institute of Physics Open Access Journal Titles; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | Accumulation Earth Earth crust Granites Isotopes Leaching Migration Oxidation Radioactivity Radioisotopes Radionuclides Ratios Rocks Thorium isotopes Uranium Uranium 234 Uranium 238 |
| title | Natural Isotopic Activity Ratios as Evidence of Migration and Leaching of Uranium in Egyptian Granitic Rocks |
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