Microfacies and depositional environment of Jeribe Formation (Middle Miocene) in the selected sections in Bekhair anticline, northwestern Kurdistan region of Iraq
Microfacies analysis and depositional environment of Jeribe Formation (early Middle Miocene) were studied for the first time in two outcrops (Karin and Qadia villages) within the Bekhair anticline in the High Folded Zone, Zakho area, northwestern part of Kurdistan region-northern Iraq. In the Bekhai...
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Elsevier
2023-07-01
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| Series: | Kuwait Journal of Science |
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| Online Access: | https://www.sciencedirect.com/science/article/pii/S2307410823000615 |
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| author | Ahmed M. Aqrawi Irfan Sh. Asaad Hasan A. Khudhur Sardar M. Balaky |
| author_facet | Ahmed M. Aqrawi Irfan Sh. Asaad Hasan A. Khudhur Sardar M. Balaky |
| author_sort | Ahmed M. Aqrawi |
| collection | DOAJ |
| description | Microfacies analysis and depositional environment of Jeribe Formation (early Middle Miocene) were studied for the first time in two outcrops (Karin and Qadia villages) within the Bekhair anticline in the High Folded Zone, Zakho area, northwestern part of Kurdistan region-northern Iraq. In the Bekhair anticline, the Jeribe Formation overlies the Dhiban Formation and underlies the Fatha Formation with gradational and conformable boundaries. Based on field observations two informal lithostratigraphic units were identified: a thick massive dolomitic limestone unit, and a fractured limestone unit. The petrographic diagnosis of 27 thin sections show a variety of shallow marine derivative fossils with non-skeletal grains like peloids, ooids, intraclasts, and quartz grains. Relying on the detailed microfacies analysis, five major microfacies types including lime mudstone, lime wackestone, lime packstone, grainstone, and boundstone were identified and then divided into eleven sub-microfacies types according to dominant grain types. They were integrated according to their environmental differentiation into two facies associations which are: intertidal and lagoon. From the sum of field observation and facies analysis, the depositional environment of the Jeribe Formation was a shallow marine environment, deposited in the intertidal setting in the lower part and changed to a semi-restricted lagoonal environment toward the upper part. |
| format | Article |
| id | doaj-art-e81e3ad0e67e42b8a192dae1e13a0c8c |
| institution | Kabale University |
| issn | 2307-4116 |
| language | English |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Kuwait Journal of Science |
| spelling | doaj-art-e81e3ad0e67e42b8a192dae1e13a0c8c2025-08-20T03:55:12ZengElsevierKuwait Journal of Science2307-41162023-07-01503359367https://doi.org/10.1016/j.kjs.2023.01.005Microfacies and depositional environment of Jeribe Formation (Middle Miocene) in the selected sections in Bekhair anticline, northwestern Kurdistan region of IraqAhmed M. Aqrawi0Irfan Sh. Asaad1Hasan A. Khudhur2Sardar M. Balaky3Dept. of Earth Sciences and Petroleum, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, IraqDept. of Earth Sciences and Petroleum, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, IraqDept. of Earth Sciences and Petroleum, College of Science, Salahaddin University-Erbil, Erbil, Kurdistan Region, IraqDept. of Petroleum Geosciences, Faculty of Science, Soran University, Soran, Kurdistan Region, IraqMicrofacies analysis and depositional environment of Jeribe Formation (early Middle Miocene) were studied for the first time in two outcrops (Karin and Qadia villages) within the Bekhair anticline in the High Folded Zone, Zakho area, northwestern part of Kurdistan region-northern Iraq. In the Bekhair anticline, the Jeribe Formation overlies the Dhiban Formation and underlies the Fatha Formation with gradational and conformable boundaries. Based on field observations two informal lithostratigraphic units were identified: a thick massive dolomitic limestone unit, and a fractured limestone unit. The petrographic diagnosis of 27 thin sections show a variety of shallow marine derivative fossils with non-skeletal grains like peloids, ooids, intraclasts, and quartz grains. Relying on the detailed microfacies analysis, five major microfacies types including lime mudstone, lime wackestone, lime packstone, grainstone, and boundstone were identified and then divided into eleven sub-microfacies types according to dominant grain types. They were integrated according to their environmental differentiation into two facies associations which are: intertidal and lagoon. From the sum of field observation and facies analysis, the depositional environment of the Jeribe Formation was a shallow marine environment, deposited in the intertidal setting in the lower part and changed to a semi-restricted lagoonal environment toward the upper part.https://www.sciencedirect.com/science/article/pii/S2307410823000615bakhair anticlinedepositional environmentjeribe formationkurdistan region-iraqmicrofaciesmiddle miocene |
| spellingShingle | Ahmed M. Aqrawi Irfan Sh. Asaad Hasan A. Khudhur Sardar M. Balaky Microfacies and depositional environment of Jeribe Formation (Middle Miocene) in the selected sections in Bekhair anticline, northwestern Kurdistan region of Iraq Kuwait Journal of Science bakhair anticline depositional environment jeribe formation kurdistan region-iraq microfacies middle miocene |
| title | Microfacies and depositional environment of Jeribe Formation (Middle Miocene) in the selected sections in Bekhair anticline, northwestern Kurdistan region of Iraq |
| title_full | Microfacies and depositional environment of Jeribe Formation (Middle Miocene) in the selected sections in Bekhair anticline, northwestern Kurdistan region of Iraq |
| title_fullStr | Microfacies and depositional environment of Jeribe Formation (Middle Miocene) in the selected sections in Bekhair anticline, northwestern Kurdistan region of Iraq |
| title_full_unstemmed | Microfacies and depositional environment of Jeribe Formation (Middle Miocene) in the selected sections in Bekhair anticline, northwestern Kurdistan region of Iraq |
| title_short | Microfacies and depositional environment of Jeribe Formation (Middle Miocene) in the selected sections in Bekhair anticline, northwestern Kurdistan region of Iraq |
| title_sort | microfacies and depositional environment of jeribe formation middle miocene in the selected sections in bekhair anticline northwestern kurdistan region of iraq |
| topic | bakhair anticline depositional environment jeribe formation kurdistan region-iraq microfacies middle miocene |
| url | https://www.sciencedirect.com/science/article/pii/S2307410823000615 |
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