Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey
The micropalaeontology of the mid-Cretaceous Derdere Formation (Mardin Group) from outcrops close to the town of Derik in south-eastern Turkey is described here. In thin sections from the carbonates that form the majority of this formation, rich and diverse micropalaeontological assemblages are pres...
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Online Access: | https://hdl.handle.net/11511/69451 https://doi.org/10.5194/jm-39-203-2020 |
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ftmetuankair:oai:https://open.metu.edu.tr:11511/69451 2023-05-15T18:00:54+02:00 Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey Simmons, Michael D. Vicedo, Vicent Yılmaz, İsmail Ömer Hosgor, Izzet Mulayim, Oguz SARI, BİLAL 2020-11-01 https://hdl.handle.net/11511/69451 https://doi.org/10.5194/jm-39-203-2020 unknown JOURNAL OF MICROPALAEONTOLOGY Simmons M. D. , Vicedo V., YILMAZ İ. Ö. , Hosgor I., Mulayim O., SARI B., "Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey", JOURNAL OF MICROPALAEONTOLOGY, cilt.39, ss.203-232, 2020 doi:10.5194/jm-39-203-2020 232 0262-821X 2 85095826266 203 https://hdl.handle.net/11511/69451 39 WOS:000589359900001 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Journal Article 2020 ftmetuankair https://doi.org/10.5194/jm-39-203-2020 2021-01-01T14:05:27Z The micropalaeontology of the mid-Cretaceous Derdere Formation (Mardin Group) from outcrops close to the town of Derik in south-eastern Turkey is described here. In thin sections from the carbonates that form the majority of this formation, rich and diverse micropalaeontological assemblages are present. These include larger benthonic foraminifera, planktonic foraminifera, and other microfossils, including calcareous algae. Alveolinid foraminifera are particularly common and include a new species - Simplalveolina mardinensis. In contrast to some previous studies, the majority of the section can be demonstrated to be Cenomanian (notably middle Cenomanian) in age with no confirmation of extension into the Albian or Turonian. Deposition took place on a carbonate ramp within a range of discrete deposition settings ranging from peritidal to outer ramp. A notable feature is the small-scale (a few metres) shallowing-up cycles within the inner-ramp facies that may be allocyclic or autocyclic in origin. Three major deepening events are recognised within the succession, characterised by more open marine microfauna and microfacies. These occur at the base of the formation, within the mid-Cenomanian lower part, and towards the top of the formation. These may correlate with three Cenomanian deepening phases seen in other parts of the Arabian Plate. Article in Journal/Newspaper Planktonic foraminifera OpenMETU (Middle East Technical University) Journal of Micropalaeontology 39 2 203 232 |
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Open Polar |
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OpenMETU (Middle East Technical University) |
op_collection_id |
ftmetuankair |
language |
unknown |
description |
The micropalaeontology of the mid-Cretaceous Derdere Formation (Mardin Group) from outcrops close to the town of Derik in south-eastern Turkey is described here. In thin sections from the carbonates that form the majority of this formation, rich and diverse micropalaeontological assemblages are present. These include larger benthonic foraminifera, planktonic foraminifera, and other microfossils, including calcareous algae. Alveolinid foraminifera are particularly common and include a new species - Simplalveolina mardinensis. In contrast to some previous studies, the majority of the section can be demonstrated to be Cenomanian (notably middle Cenomanian) in age with no confirmation of extension into the Albian or Turonian. Deposition took place on a carbonate ramp within a range of discrete deposition settings ranging from peritidal to outer ramp. A notable feature is the small-scale (a few metres) shallowing-up cycles within the inner-ramp facies that may be allocyclic or autocyclic in origin. Three major deepening events are recognised within the succession, characterised by more open marine microfauna and microfacies. These occur at the base of the formation, within the mid-Cenomanian lower part, and towards the top of the formation. These may correlate with three Cenomanian deepening phases seen in other parts of the Arabian Plate. |
format |
Article in Journal/Newspaper |
author |
Simmons, Michael D. Vicedo, Vicent Yılmaz, İsmail Ömer Hosgor, Izzet Mulayim, Oguz SARI, BİLAL |
spellingShingle |
Simmons, Michael D. Vicedo, Vicent Yılmaz, İsmail Ömer Hosgor, Izzet Mulayim, Oguz SARI, BİLAL Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey |
author_facet |
Simmons, Michael D. Vicedo, Vicent Yılmaz, İsmail Ömer Hosgor, Izzet Mulayim, Oguz SARI, BİLAL |
author_sort |
Simmons, Michael D. |
title |
Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey |
title_short |
Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey |
title_full |
Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey |
title_fullStr |
Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey |
title_full_unstemmed |
Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey |
title_sort |
micropalaeontology, biostratigraphy, and depositional setting of the mid-cretaceous derdere formation at derik, mardin, south-eastern turkey |
publisher |
JOURNAL OF MICROPALAEONTOLOGY |
publishDate |
2020 |
url |
https://hdl.handle.net/11511/69451 https://doi.org/10.5194/jm-39-203-2020 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
Simmons M. D. , Vicedo V., YILMAZ İ. Ö. , Hosgor I., Mulayim O., SARI B., "Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey", JOURNAL OF MICROPALAEONTOLOGY, cilt.39, ss.203-232, 2020 doi:10.5194/jm-39-203-2020 232 0262-821X 2 85095826266 203 https://hdl.handle.net/11511/69451 39 WOS:000589359900001 |
op_rights |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.5194/jm-39-203-2020 |
container_title |
Journal of Micropalaeontology |
container_volume |
39 |
container_issue |
2 |
container_start_page |
203 |
op_container_end_page |
232 |
_version_ |
1766170179852566528 |