Oligocene-Miocene ramp system (Asmari Formation) in the NW of the Zagros basin, Iran: Microfacies, paleoenvironment and depositional sequence
The Asmari Formation deposited in the Zagros foreland basin during the Oligocene-Miocene. Four different measured sections were studied in this area in order to interpret the facies, depositional environment and sequence stratigraphy of the Asmari Formation. In this study, thirteen different microf...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universidad Nacional Autónoma de México
2017-12-01
|
| Series: | Revista Mexicana de Ciencias Geológicas |
| Subjects: | |
| Online Access: | https://rmcg.unam.mx/index.php/rmcg/article/view/631 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850161236017152000 |
|---|---|
| author | Hossein Vaziri-Moghaddam Ali Seyrafian Azizolah Taheri Homayoon Motiei |
| author_facet | Hossein Vaziri-Moghaddam Ali Seyrafian Azizolah Taheri Homayoon Motiei |
| author_sort | Hossein Vaziri-Moghaddam |
| collection | DOAJ |
| description |
The Asmari Formation deposited in the Zagros foreland basin during the Oligocene-Miocene. Four different measured sections were studied in this area in order to interpret the facies, depositional environment and sequence stratigraphy of the Asmari Formation. In this study, thirteen different microfacies types have been recognized, which can be grouped into six depositional environments: tidal flat, restricted lagoon, open lagoon, shoal, slope and basin. The Asmari Formation represents sedimentation on a carbonate ramp. Four third-order sequences are identified, on the basis of deepening and shallowing patterns in the microfacies and the distribution of the Oligocene-Miocene foraminifers. The depositional sequences 1, 2 and 3 were observed in Dehluran and Kabirkuh-Darrehshahr areas, and are synchronous with a period of either erosion or non-deposition represented by unconformities in Mamulan and Sepid Dasht areas.
|
| format | Article |
| id | doaj-art-4bc2e80ae4c840db920dedf6a41d1d60 |
| institution | OA Journals |
| issn | 1026-8774 2007-2902 |
| language | English |
| publishDate | 2017-12-01 |
| publisher | Universidad Nacional Autónoma de México |
| record_format | Article |
| series | Revista Mexicana de Ciencias Geológicas |
| spelling | doaj-art-4bc2e80ae4c840db920dedf6a41d1d602025-08-20T02:22:55ZengUniversidad Nacional Autónoma de MéxicoRevista Mexicana de Ciencias Geológicas1026-87742007-29022017-12-01271Oligocene-Miocene ramp system (Asmari Formation) in the NW of the Zagros basin, Iran: Microfacies, paleoenvironment and depositional sequenceHossein Vaziri-Moghaddam0Ali Seyrafian1Azizolah Taheri2Homayoon Motiei3Department of Geology, Faculty of Sciences, University of Isfahan, Isfahan, Iran, 81746-73441.Department of Geology, Faculty of Sciences, University of Isfahan, Isfahan, Iran, 81746-73441.Geology Department, Faculty of Earth Science, Shahrood University of Technology, Shahroud, Iran.National Iranian Oil Company Research and Development Division, Tehran, Iran. The Asmari Formation deposited in the Zagros foreland basin during the Oligocene-Miocene. Four different measured sections were studied in this area in order to interpret the facies, depositional environment and sequence stratigraphy of the Asmari Formation. In this study, thirteen different microfacies types have been recognized, which can be grouped into six depositional environments: tidal flat, restricted lagoon, open lagoon, shoal, slope and basin. The Asmari Formation represents sedimentation on a carbonate ramp. Four third-order sequences are identified, on the basis of deepening and shallowing patterns in the microfacies and the distribution of the Oligocene-Miocene foraminifers. The depositional sequences 1, 2 and 3 were observed in Dehluran and Kabirkuh-Darrehshahr areas, and are synchronous with a period of either erosion or non-deposition represented by unconformities in Mamulan and Sepid Dasht areas. https://rmcg.unam.mx/index.php/rmcg/article/view/631microfaciespaleoenvironmentrampAsmari FormationZagros basinIran. |
| spellingShingle | Hossein Vaziri-Moghaddam Ali Seyrafian Azizolah Taheri Homayoon Motiei Oligocene-Miocene ramp system (Asmari Formation) in the NW of the Zagros basin, Iran: Microfacies, paleoenvironment and depositional sequence Revista Mexicana de Ciencias Geológicas microfacies paleoenvironment ramp Asmari Formation Zagros basin Iran. |
| title | Oligocene-Miocene ramp system (Asmari Formation) in the NW of the Zagros basin, Iran: Microfacies, paleoenvironment and depositional sequence |
| title_full | Oligocene-Miocene ramp system (Asmari Formation) in the NW of the Zagros basin, Iran: Microfacies, paleoenvironment and depositional sequence |
| title_fullStr | Oligocene-Miocene ramp system (Asmari Formation) in the NW of the Zagros basin, Iran: Microfacies, paleoenvironment and depositional sequence |
| title_full_unstemmed | Oligocene-Miocene ramp system (Asmari Formation) in the NW of the Zagros basin, Iran: Microfacies, paleoenvironment and depositional sequence |
| title_short | Oligocene-Miocene ramp system (Asmari Formation) in the NW of the Zagros basin, Iran: Microfacies, paleoenvironment and depositional sequence |
| title_sort | oligocene miocene ramp system asmari formation in the nw of the zagros basin iran microfacies paleoenvironment and depositional sequence |
| topic | microfacies paleoenvironment ramp Asmari Formation Zagros basin Iran. |
| url | https://rmcg.unam.mx/index.php/rmcg/article/view/631 |
| work_keys_str_mv | AT hosseinvazirimoghaddam oligocenemiocenerampsystemasmariformationinthenwofthezagrosbasiniranmicrofaciespaleoenvironmentanddepositionalsequence AT aliseyrafian oligocenemiocenerampsystemasmariformationinthenwofthezagrosbasiniranmicrofaciespaleoenvironmentanddepositionalsequence AT azizolahtaheri oligocenemiocenerampsystemasmariformationinthenwofthezagrosbasiniranmicrofaciespaleoenvironmentanddepositionalsequence AT homayoonmotiei oligocenemiocenerampsystemasmariformationinthenwofthezagrosbasiniranmicrofaciespaleoenvironmentanddepositionalsequence |