Bio-sequence stratigraphy of the Neogene: an example from El-Wastani gas field, onshore Nile Delta, Egypt
Due to modern hydrocarbon development and exploration activities throughout the onshore Nile Delta of Egypt, a high-resolution biochronologic sequence stratigraphy of the Neogene sequence was conducted to illustrate the gas-bearing reservoirs' depositional sequences. Our study used a multidisci...
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ftdoajarticles:oai:doaj.org/article:4eb1f13677494a1fb39548c0a502253f 2023-11-05T03:44:41+01:00 Bio-sequence stratigraphy of the Neogene: an example from El-Wastani gas field, onshore Nile Delta, Egypt R. M. El-Kahawy N. Aboul-Ela A. N. El-Barkooky W. G. Kassab 2023-10-01T00:00:00Z https://doi.org/10.5194/jm-42-147-2023 https://doaj.org/article/4eb1f13677494a1fb39548c0a502253f EN eng Copernicus Publications https://jm.copernicus.org/articles/42/147/2023/jm-42-147-2023.pdf https://doaj.org/toc/0262-821X https://doaj.org/toc/2041-4978 doi:10.5194/jm-42-147-2023 0262-821X 2041-4978 https://doaj.org/article/4eb1f13677494a1fb39548c0a502253f Journal of Micropalaeontology, Vol 42, Pp 147-169 (2023) Geology QE1-996.5 article 2023 ftdoajarticles https://doi.org/10.5194/jm-42-147-2023 2023-10-08T00:36:48Z Due to modern hydrocarbon development and exploration activities throughout the onshore Nile Delta of Egypt, a high-resolution biochronologic sequence stratigraphy of the Neogene sequence was conducted to illustrate the gas-bearing reservoirs' depositional sequences. Our study used a multidisciplinary approach comprising biostratigraphy, facies analysis, geophysical logs, and seismic data to shed light on the Neogene stratigraphic framework. The biostratigraphic analysis of planktonic foraminifera and calcareous nannofossils allowed the recognition of six zones and/or subzones and nine zones, respectively. An open-shelf environment was suggested for the Middle–Upper Miocene Sidi Salem Formation, while the Upper Miocene Qawasim and Abu Madi formations were deposited under stressed environmental conditions interpreted as estuary facies. The Lower Pliocene (Zanclean) succession deposited in the middle to outer shelf domains, including the upper-bathyal environments. Seven depositional sequences bounded by six major sequence boundaries were recognized from Serravallian to Zanclean times. These boundaries significantly influenced changes in reservoir properties and architecture of the incised valley fills. The sea-level oscillations are interpreted by correlating the sequence boundaries and flooding surfaces with global eustatic charts. Article in Journal/Newspaper Planktonic foraminifera Directory of Open Access Journals: DOAJ Articles Journal of Micropalaeontology 42 2 147 169 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Geology QE1-996.5 |
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Geology QE1-996.5 R. M. El-Kahawy N. Aboul-Ela A. N. El-Barkooky W. G. Kassab Bio-sequence stratigraphy of the Neogene: an example from El-Wastani gas field, onshore Nile Delta, Egypt |
topic_facet |
Geology QE1-996.5 |
description |
Due to modern hydrocarbon development and exploration activities throughout the onshore Nile Delta of Egypt, a high-resolution biochronologic sequence stratigraphy of the Neogene sequence was conducted to illustrate the gas-bearing reservoirs' depositional sequences. Our study used a multidisciplinary approach comprising biostratigraphy, facies analysis, geophysical logs, and seismic data to shed light on the Neogene stratigraphic framework. The biostratigraphic analysis of planktonic foraminifera and calcareous nannofossils allowed the recognition of six zones and/or subzones and nine zones, respectively. An open-shelf environment was suggested for the Middle–Upper Miocene Sidi Salem Formation, while the Upper Miocene Qawasim and Abu Madi formations were deposited under stressed environmental conditions interpreted as estuary facies. The Lower Pliocene (Zanclean) succession deposited in the middle to outer shelf domains, including the upper-bathyal environments. Seven depositional sequences bounded by six major sequence boundaries were recognized from Serravallian to Zanclean times. These boundaries significantly influenced changes in reservoir properties and architecture of the incised valley fills. The sea-level oscillations are interpreted by correlating the sequence boundaries and flooding surfaces with global eustatic charts. |
format |
Article in Journal/Newspaper |
author |
R. M. El-Kahawy N. Aboul-Ela A. N. El-Barkooky W. G. Kassab |
author_facet |
R. M. El-Kahawy N. Aboul-Ela A. N. El-Barkooky W. G. Kassab |
author_sort |
R. M. El-Kahawy |
title |
Bio-sequence stratigraphy of the Neogene: an example from El-Wastani gas field, onshore Nile Delta, Egypt |
title_short |
Bio-sequence stratigraphy of the Neogene: an example from El-Wastani gas field, onshore Nile Delta, Egypt |
title_full |
Bio-sequence stratigraphy of the Neogene: an example from El-Wastani gas field, onshore Nile Delta, Egypt |
title_fullStr |
Bio-sequence stratigraphy of the Neogene: an example from El-Wastani gas field, onshore Nile Delta, Egypt |
title_full_unstemmed |
Bio-sequence stratigraphy of the Neogene: an example from El-Wastani gas field, onshore Nile Delta, Egypt |
title_sort |
bio-sequence stratigraphy of the neogene: an example from el-wastani gas field, onshore nile delta, egypt |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/jm-42-147-2023 https://doaj.org/article/4eb1f13677494a1fb39548c0a502253f |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Journal of Micropalaeontology, Vol 42, Pp 147-169 (2023) |
op_relation |
https://jm.copernicus.org/articles/42/147/2023/jm-42-147-2023.pdf https://doaj.org/toc/0262-821X https://doaj.org/toc/2041-4978 doi:10.5194/jm-42-147-2023 0262-821X 2041-4978 https://doaj.org/article/4eb1f13677494a1fb39548c0a502253f |
op_doi |
https://doi.org/10.5194/jm-42-147-2023 |
container_title |
Journal of Micropalaeontology |
container_volume |
42 |
container_issue |
2 |
container_start_page |
147 |
op_container_end_page |
169 |
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1781705225659219968 |