Analysis of Microfacies , Sedimentary Environments and Sequence Stratigraphy of Pabdeh Formation, in type section, Zagros
Type section of Pabdeh Formation (Late Paleocene- Early Oligocene) is located in the Gurpi anticline, Zagros, Khouzestan Province. Lithologically Pabdeh Formation consists of purple and white to yellowish marl, marly limestone and thin- to thick- bedded limestone, rich in pelagic foraminiferas. Pabd...
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University of Isfahan
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ftdoajarticles:oai:doaj.org/article:20650e0c58f24977b69300ef223eefc3 2023-05-15T18:01:00+02:00 Analysis of Microfacies , Sedimentary Environments and Sequence Stratigraphy of Pabdeh Formation, in type section, Zagros Somaiyeh Saravani Mohammadnabi gorgij mostafa ghomashi Ali Ahmadi 2017-12-01T00:00:00Z https://doi.org/10.22108/jssr.2017.102637.1008 https://doaj.org/article/20650e0c58f24977b69300ef223eefc3 FA per University of Isfahan http://jssr.ui.ac.ir/article_22347_81506c67d58f26afe595477bf7167a49.pdf https://doaj.org/toc/2008-7888 https://doaj.org/toc/2423-8007 2008-7888 2423-8007 doi:10.22108/jssr.2017.102637.1008 https://doaj.org/article/20650e0c58f24977b69300ef223eefc3 Journal of Stratigraphy and Sedimentology Researches, Vol 33, Iss 4, Pp 69-104 (2017) Gurpi anticline Pabdeh Formation Sedimentary Environment Sequence stratigraphy Paleocene- Oligocene Stratigraphy QE640-699 article 2017 ftdoajarticles https://doi.org/10.22108/jssr.2017.102637.1008 2022-12-31T04:52:43Z Type section of Pabdeh Formation (Late Paleocene- Early Oligocene) is located in the Gurpi anticline, Zagros, Khouzestan Province. Lithologically Pabdeh Formation consists of purple and white to yellowish marl, marly limestone and thin- to thick- bedded limestone, rich in pelagic foraminiferas. Pabdeh Formation conformably overlies Gurpi Formation and is conformably overlained by Asmari Formation. Petrographic studies, description and microfacies analysis specially hemipelagic, pelagic and calciturbidite facies of Paleocene to Lower Oligocene indicate that Pabdeh Formation was deposited in a deep marine basin. Field observations, facies studies and sequence studies resulted in identification of stratal key surfaces of sequence stratigraphy such as sequence boundary, maximum flooding surface, transgressive surface, system tracts and 9 depositional sequences. Sequence P1, P2 and LST, FSST of sequence P3 are of Paleocene in age, based on identification of planktonic foraminifera, TST, HST and FRWST of sequence P3 and sequences P4, P6, P7 and P8 were deposited during Eocene, and sequence P9 suggest an age of Upper Eocene- Lower Oligocene. All sequences begin with SB2 and except of sequence P3 and P4 , SB2 and Ts surfaces coincide with each other. Deepest mfs is belongs to the sequence P3; due to the remarkable abundance of glauconite minerals. Relative sea- level curves in most sequences, except for sequences P3, P8 and P9 exactly correlate with standard global sea level curves. The role of synsedimentary tectonic activities and sea-level oscilations ,probably, are responsible for deposition of sequences P3, P8 and P9. Article in Journal/Newspaper Planktonic foraminifera Directory of Open Access Journals: DOAJ Articles |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Persian |
topic |
Gurpi anticline Pabdeh Formation Sedimentary Environment Sequence stratigraphy Paleocene- Oligocene Stratigraphy QE640-699 |
spellingShingle |
Gurpi anticline Pabdeh Formation Sedimentary Environment Sequence stratigraphy Paleocene- Oligocene Stratigraphy QE640-699 Somaiyeh Saravani Mohammadnabi gorgij mostafa ghomashi Ali Ahmadi Analysis of Microfacies , Sedimentary Environments and Sequence Stratigraphy of Pabdeh Formation, in type section, Zagros |
topic_facet |
Gurpi anticline Pabdeh Formation Sedimentary Environment Sequence stratigraphy Paleocene- Oligocene Stratigraphy QE640-699 |
description |
Type section of Pabdeh Formation (Late Paleocene- Early Oligocene) is located in the Gurpi anticline, Zagros, Khouzestan Province. Lithologically Pabdeh Formation consists of purple and white to yellowish marl, marly limestone and thin- to thick- bedded limestone, rich in pelagic foraminiferas. Pabdeh Formation conformably overlies Gurpi Formation and is conformably overlained by Asmari Formation. Petrographic studies, description and microfacies analysis specially hemipelagic, pelagic and calciturbidite facies of Paleocene to Lower Oligocene indicate that Pabdeh Formation was deposited in a deep marine basin. Field observations, facies studies and sequence studies resulted in identification of stratal key surfaces of sequence stratigraphy such as sequence boundary, maximum flooding surface, transgressive surface, system tracts and 9 depositional sequences. Sequence P1, P2 and LST, FSST of sequence P3 are of Paleocene in age, based on identification of planktonic foraminifera, TST, HST and FRWST of sequence P3 and sequences P4, P6, P7 and P8 were deposited during Eocene, and sequence P9 suggest an age of Upper Eocene- Lower Oligocene. All sequences begin with SB2 and except of sequence P3 and P4 , SB2 and Ts surfaces coincide with each other. Deepest mfs is belongs to the sequence P3; due to the remarkable abundance of glauconite minerals. Relative sea- level curves in most sequences, except for sequences P3, P8 and P9 exactly correlate with standard global sea level curves. The role of synsedimentary tectonic activities and sea-level oscilations ,probably, are responsible for deposition of sequences P3, P8 and P9. |
format |
Article in Journal/Newspaper |
author |
Somaiyeh Saravani Mohammadnabi gorgij mostafa ghomashi Ali Ahmadi |
author_facet |
Somaiyeh Saravani Mohammadnabi gorgij mostafa ghomashi Ali Ahmadi |
author_sort |
Somaiyeh Saravani |
title |
Analysis of Microfacies , Sedimentary Environments and Sequence Stratigraphy of Pabdeh Formation, in type section, Zagros |
title_short |
Analysis of Microfacies , Sedimentary Environments and Sequence Stratigraphy of Pabdeh Formation, in type section, Zagros |
title_full |
Analysis of Microfacies , Sedimentary Environments and Sequence Stratigraphy of Pabdeh Formation, in type section, Zagros |
title_fullStr |
Analysis of Microfacies , Sedimentary Environments and Sequence Stratigraphy of Pabdeh Formation, in type section, Zagros |
title_full_unstemmed |
Analysis of Microfacies , Sedimentary Environments and Sequence Stratigraphy of Pabdeh Formation, in type section, Zagros |
title_sort |
analysis of microfacies , sedimentary environments and sequence stratigraphy of pabdeh formation, in type section, zagros |
publisher |
University of Isfahan |
publishDate |
2017 |
url |
https://doi.org/10.22108/jssr.2017.102637.1008 https://doaj.org/article/20650e0c58f24977b69300ef223eefc3 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Journal of Stratigraphy and Sedimentology Researches, Vol 33, Iss 4, Pp 69-104 (2017) |
op_relation |
http://jssr.ui.ac.ir/article_22347_81506c67d58f26afe595477bf7167a49.pdf https://doaj.org/toc/2008-7888 https://doaj.org/toc/2423-8007 2008-7888 2423-8007 doi:10.22108/jssr.2017.102637.1008 https://doaj.org/article/20650e0c58f24977b69300ef223eefc3 |
op_doi |
https://doi.org/10.22108/jssr.2017.102637.1008 |
_version_ |
1766170312493236224 |