Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman
<p dir="ltr">This research presents findings from a study focused on the Lower Triassic (Induan) Lower Mahil KS-1 Formation, situated on a homoclinal carbonate platform in Northern Oman. The sequence stratigraphy of this formation is characterized by a considerable thickness variatio...
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| مؤلفون آخرون: | , , , , , , , |
| منشور في: |
2023
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| _version_ | 1864513545934209024 |
|---|---|
| author | Mohamed S. H. Moustafa (21632747) |
| author2 | Rasha Al Raqaishi (21632750) Mohamed A. K. El-Ghali (21632753) Mohamed Gharbi (5127338) Iftikhar Ahmed Abbasi (20693915) Aaraf Al Humaidi (21632756) Nada Al Ghafri (21632759) Marwa Musallam Alshukaili (21632762) Hezam Al-Awah (21632765) |
| author2_role | author author author author author author author author |
| author_facet | Mohamed S. H. Moustafa (21632747) Rasha Al Raqaishi (21632750) Mohamed A. K. El-Ghali (21632753) Mohamed Gharbi (5127338) Iftikhar Ahmed Abbasi (20693915) Aaraf Al Humaidi (21632756) Nada Al Ghafri (21632759) Marwa Musallam Alshukaili (21632762) Hezam Al-Awah (21632765) |
| author_role | author |
| dc.creator.none.fl_str_mv | Mohamed S. H. Moustafa (21632747) Rasha Al Raqaishi (21632750) Mohamed A. K. El-Ghali (21632753) Mohamed Gharbi (5127338) Iftikhar Ahmed Abbasi (20693915) Aaraf Al Humaidi (21632756) Nada Al Ghafri (21632759) Marwa Musallam Alshukaili (21632762) Hezam Al-Awah (21632765) |
| dc.date.none.fl_str_mv | 2023-09-28T09:00:00Z |
| dc.identifier.none.fl_str_mv | 10.3389/feart.2023.1270795 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Gamma-ray_stable_carbon_and_oxygen_isotope_chemostratigraphy_and_sequence_stratigraphy_of_the_Lower_Mahil_Formation_KS-1_Khuff-Equivalent_Northern_Oman/29445368 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Earth sciences Geology carbon isotope oxygen isotope uranium total gamma-ray Mahil Formation Khuff Formation |
| dc.title.none.fl_str_mv | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">This research presents findings from a study focused on the Lower Triassic (Induan) Lower Mahil KS-1 Formation, situated on a homoclinal carbonate platform in Northern Oman. The sequence stratigraphy of this formation is characterized by a considerable thickness variation, slumps, and breccia deposits related to active normal faults coupled with intra-basin growth faults. The main objective was to establish a reliable stratigraphic framework for the Lower Mahil KS-1 Formation by integrating high-resolution carbon isotope data along with high-resolution spectral and total gamma-ray data. To achieve this, whole-rock samples were analyzed for δ<sup>13</sup>C and δ<sup>18</sup>O isotopes. Spectral and total gamma-ray records were obtained for the formation. Isotope sampling is conducted every 0.5 m in the Saiq Plateau and Wadi Sahtan sections. Furthermore, spectral gamma-ray measurements were taken at intervals of 10 cm from the logged sections. Within the third-order sequence, the spectral gamma-ray data revealed a distinct sea-level trend, leading to the division of KS1 into two different parts. Five fourth-order depositional sequences were identified by analyzing stable carbon isotopes, uranium, and total gamma-ray profiles. Four of these sequences displayed complete patterns, reflecting transgression and regression phases, while the fifth sequence was incomplete and solely comprised a transgressive phase. An essential outcome of the study is the correlation of the δ<sup>13</sup>C curve of the Lower Mahil KS-1 Formation with other similar formations around the Tethys region. This correlation indicates that the Lower Mahil KS-1 Formation captures the near-primary signal of carbon isotope variations in coeval seawater. As a result, it holds promise as a reference section for future investigations and studies in this field. Compared to the prior investigation, this study utilizes data with higher precision, capturing spectral gamma-ray measurements at 10 cm intervals and isotope measurements at 50 cm intervals. Furthermore, the study’s focus is confined explicitly to KS1.</p><h2>Other Information</h2><p dir="ltr">Published in: Frontiers in Earth Science<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/feart.2023.1270795" target="_blank">https://dx.doi.org/10.3389/feart.2023.1270795</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_ad1f88e743457bef04dacc68a691201f |
| identifier_str_mv | 10.3389/feart.2023.1270795 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/29445368 |
| publishDate | 2023 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern OmanMohamed S. H. Moustafa (21632747)Rasha Al Raqaishi (21632750)Mohamed A. K. El-Ghali (21632753)Mohamed Gharbi (5127338)Iftikhar Ahmed Abbasi (20693915)Aaraf Al Humaidi (21632756)Nada Al Ghafri (21632759)Marwa Musallam Alshukaili (21632762)Hezam Al-Awah (21632765)Earth sciencesGeologycarbon isotopeoxygen isotopeuraniumtotal gamma-rayMahil FormationKhuff Formation<p dir="ltr">This research presents findings from a study focused on the Lower Triassic (Induan) Lower Mahil KS-1 Formation, situated on a homoclinal carbonate platform in Northern Oman. The sequence stratigraphy of this formation is characterized by a considerable thickness variation, slumps, and breccia deposits related to active normal faults coupled with intra-basin growth faults. The main objective was to establish a reliable stratigraphic framework for the Lower Mahil KS-1 Formation by integrating high-resolution carbon isotope data along with high-resolution spectral and total gamma-ray data. To achieve this, whole-rock samples were analyzed for δ<sup>13</sup>C and δ<sup>18</sup>O isotopes. Spectral and total gamma-ray records were obtained for the formation. Isotope sampling is conducted every 0.5 m in the Saiq Plateau and Wadi Sahtan sections. Furthermore, spectral gamma-ray measurements were taken at intervals of 10 cm from the logged sections. Within the third-order sequence, the spectral gamma-ray data revealed a distinct sea-level trend, leading to the division of KS1 into two different parts. Five fourth-order depositional sequences were identified by analyzing stable carbon isotopes, uranium, and total gamma-ray profiles. Four of these sequences displayed complete patterns, reflecting transgression and regression phases, while the fifth sequence was incomplete and solely comprised a transgressive phase. An essential outcome of the study is the correlation of the δ<sup>13</sup>C curve of the Lower Mahil KS-1 Formation with other similar formations around the Tethys region. This correlation indicates that the Lower Mahil KS-1 Formation captures the near-primary signal of carbon isotope variations in coeval seawater. As a result, it holds promise as a reference section for future investigations and studies in this field. Compared to the prior investigation, this study utilizes data with higher precision, capturing spectral gamma-ray measurements at 10 cm intervals and isotope measurements at 50 cm intervals. Furthermore, the study’s focus is confined explicitly to KS1.</p><h2>Other Information</h2><p dir="ltr">Published in: Frontiers in Earth Science<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.3389/feart.2023.1270795" target="_blank">https://dx.doi.org/10.3389/feart.2023.1270795</a></p>2023-09-28T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.3389/feart.2023.1270795https://figshare.com/articles/journal_contribution/Gamma-ray_stable_carbon_and_oxygen_isotope_chemostratigraphy_and_sequence_stratigraphy_of_the_Lower_Mahil_Formation_KS-1_Khuff-Equivalent_Northern_Oman/29445368CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/294453682023-09-28T09:00:00Z |
| spellingShingle | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman Mohamed S. H. Moustafa (21632747) Earth sciences Geology carbon isotope oxygen isotope uranium total gamma-ray Mahil Formation Khuff Formation |
| status_str | publishedVersion |
| title | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman |
| title_full | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman |
| title_fullStr | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman |
| title_full_unstemmed | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman |
| title_short | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman |
| title_sort | Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman |
| topic | Earth sciences Geology carbon isotope oxygen isotope uranium total gamma-ray Mahil Formation Khuff Formation |