Planktonic foraminiferal biostratigraphy and paleoecology of Upper Cretaceous deposits from the Palmyride Region, Syria
This study represents a detailed micropaleontological investigation of the composition and diversity of planktonic foraminiferal assemblages from the Upper Turonian to Maastrichtian interval of two deep exploration wells (Al Mahr-1 and Palmyra-1) in the Palmyride area of Syria. In combination with a...
Published in: | Geologia Croatica |
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Language: | English |
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Croatian Geological Survey
2014
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Online Access: | https://doi.org/10.4154/GC.2014.08 https://doaj.org/article/bdbd0c96e4594b838920c4574fc49e1b |
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ftdoajarticles:oai:doaj.org/article:bdbd0c96e4594b838920c4574fc49e1b 2023-05-15T18:00:42+02:00 Planktonic foraminiferal biostratigraphy and paleoecology of Upper Cretaceous deposits from the Palmyride Region, Syria Gabrijela Pecimotika Blanka Cvetko Tešović Vlasta Premec Fućek 2014-06-01T00:00:00Z https://doi.org/10.4154/GC.2014.08 https://doaj.org/article/bdbd0c96e4594b838920c4574fc49e1b EN eng Croatian Geological Survey http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/632 https://doaj.org/toc/1330-030X https://doaj.org/toc/1333-4875 1330-030X 1333-4875 doi:10.4154/GC.2014.08 https://doaj.org/article/bdbd0c96e4594b838920c4574fc49e1b Geologia Croatica, Vol 67, Iss 2, Pp 87-110 (2014) Planktonic foraminifera Biostratigraphy Phosphatic grains Upper Turonian–Maastrichtian Palmyride region Syria Geology QE1-996.5 article 2014 ftdoajarticles https://doi.org/10.4154/GC.2014.08 2022-12-31T14:21:38Z This study represents a detailed micropaleontological investigation of the composition and diversity of planktonic foraminiferal assemblages from the Upper Turonian to Maastrichtian interval of two deep exploration wells (Al Mahr-1 and Palmyra-1) in the Palmyride area of Syria. In combination with a litostratigraphic analysis, this detailed biostratigraphic study provided important new paleoecological and paleoclimatic interpretations and insights into the nature of deposition along the northern passive margin of Gondwana during the Late Cretaceous. The investigated strata belong to three lithostratigraphic units (from base to top): the upper part of the Judea Formation (Upper Turonian–Earliest Santonian), the Soukhne Formation (Santonian–Lower Campanian), and the Shiranish Formation (Upper Campanian–Maastrichtian). The results represent the first detailed determination of planktonic foraminifera from the Palmyidra region. The presence of rich and diverse foraminiferal associations enabled the establishment of the following nine late Turonian to Maastrichtian biostratigraphic zones based on documented index-taxa and/or the entire microfossil assemblages: I) Dicarinella concavata Zone; II) Dicarinella asymetrica Zone; III) Globotruncanita elevaata Zone; IV) Contusotruncana plummerae Zone; V) Radotruncana calcarata Zone; VI) Globotruncanella havanensis Zone;VII) Pseudoguembelina palpebra Zone; VIII) Racemiguembelina fructicosa Zone; and IX) Abathomphalus mayaroensis Zone. The late Turonian to early Campanian foraminiferal assemblages (biozones I-IV) are highly dominated by opportunistic taxa (r-strategists) and suggest a generally fluctuating subtropical climate and deposition in outer shelf environments. The well-preserved and highly diversified late Campanian to Maastrichtian foraminiferal assemblages (biozones V-IX) imply the presence of a well-stratified water column, tropical to subtropical climate, and deposition in outer shelf to upper bathyal environments. A decrease in the number of planktonic species ... Article in Journal/Newspaper Planktonic foraminifera Directory of Open Access Journals: DOAJ Articles Geologia Croatica 67 2 111 126 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Planktonic foraminifera Biostratigraphy Phosphatic grains Upper Turonian–Maastrichtian Palmyride region Syria Geology QE1-996.5 |
spellingShingle |
Planktonic foraminifera Biostratigraphy Phosphatic grains Upper Turonian–Maastrichtian Palmyride region Syria Geology QE1-996.5 Gabrijela Pecimotika Blanka Cvetko Tešović Vlasta Premec Fućek Planktonic foraminiferal biostratigraphy and paleoecology of Upper Cretaceous deposits from the Palmyride Region, Syria |
topic_facet |
Planktonic foraminifera Biostratigraphy Phosphatic grains Upper Turonian–Maastrichtian Palmyride region Syria Geology QE1-996.5 |
description |
This study represents a detailed micropaleontological investigation of the composition and diversity of planktonic foraminiferal assemblages from the Upper Turonian to Maastrichtian interval of two deep exploration wells (Al Mahr-1 and Palmyra-1) in the Palmyride area of Syria. In combination with a litostratigraphic analysis, this detailed biostratigraphic study provided important new paleoecological and paleoclimatic interpretations and insights into the nature of deposition along the northern passive margin of Gondwana during the Late Cretaceous. The investigated strata belong to three lithostratigraphic units (from base to top): the upper part of the Judea Formation (Upper Turonian–Earliest Santonian), the Soukhne Formation (Santonian–Lower Campanian), and the Shiranish Formation (Upper Campanian–Maastrichtian). The results represent the first detailed determination of planktonic foraminifera from the Palmyidra region. The presence of rich and diverse foraminiferal associations enabled the establishment of the following nine late Turonian to Maastrichtian biostratigraphic zones based on documented index-taxa and/or the entire microfossil assemblages: I) Dicarinella concavata Zone; II) Dicarinella asymetrica Zone; III) Globotruncanita elevaata Zone; IV) Contusotruncana plummerae Zone; V) Radotruncana calcarata Zone; VI) Globotruncanella havanensis Zone;VII) Pseudoguembelina palpebra Zone; VIII) Racemiguembelina fructicosa Zone; and IX) Abathomphalus mayaroensis Zone. The late Turonian to early Campanian foraminiferal assemblages (biozones I-IV) are highly dominated by opportunistic taxa (r-strategists) and suggest a generally fluctuating subtropical climate and deposition in outer shelf environments. The well-preserved and highly diversified late Campanian to Maastrichtian foraminiferal assemblages (biozones V-IX) imply the presence of a well-stratified water column, tropical to subtropical climate, and deposition in outer shelf to upper bathyal environments. A decrease in the number of planktonic species ... |
format |
Article in Journal/Newspaper |
author |
Gabrijela Pecimotika Blanka Cvetko Tešović Vlasta Premec Fućek |
author_facet |
Gabrijela Pecimotika Blanka Cvetko Tešović Vlasta Premec Fućek |
author_sort |
Gabrijela Pecimotika |
title |
Planktonic foraminiferal biostratigraphy and paleoecology of Upper Cretaceous deposits from the Palmyride Region, Syria |
title_short |
Planktonic foraminiferal biostratigraphy and paleoecology of Upper Cretaceous deposits from the Palmyride Region, Syria |
title_full |
Planktonic foraminiferal biostratigraphy and paleoecology of Upper Cretaceous deposits from the Palmyride Region, Syria |
title_fullStr |
Planktonic foraminiferal biostratigraphy and paleoecology of Upper Cretaceous deposits from the Palmyride Region, Syria |
title_full_unstemmed |
Planktonic foraminiferal biostratigraphy and paleoecology of Upper Cretaceous deposits from the Palmyride Region, Syria |
title_sort |
planktonic foraminiferal biostratigraphy and paleoecology of upper cretaceous deposits from the palmyride region, syria |
publisher |
Croatian Geological Survey |
publishDate |
2014 |
url |
https://doi.org/10.4154/GC.2014.08 https://doaj.org/article/bdbd0c96e4594b838920c4574fc49e1b |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Geologia Croatica, Vol 67, Iss 2, Pp 87-110 (2014) |
op_relation |
http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/632 https://doaj.org/toc/1330-030X https://doaj.org/toc/1333-4875 1330-030X 1333-4875 doi:10.4154/GC.2014.08 https://doaj.org/article/bdbd0c96e4594b838920c4574fc49e1b |
op_doi |
https://doi.org/10.4154/GC.2014.08 |
container_title |
Geologia Croatica |
container_volume |
67 |
container_issue |
2 |
container_start_page |
111 |
op_container_end_page |
126 |
_version_ |
1766169914028064768 |