Integrated stratigraphy of the St. Thomas section (Malta Island): A reference section for the lower Burdigalian of the Mediterranean Region
The 91.15 m thick St. Thomas section belongs to the Middle Globigerina Limestone, which is the intermediate member of the Globigerina Limestone Formation, and crops out along the eastern cliff of the Delimara Peninsula (the south-eastern part ofMalta Island). The sedimentary record is composed of al...
Published in: | Marine Micropaleontology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier Science Limited
2014
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Online Access: | http://hdl.handle.net/2122/9060 https://doi.org/10.1016/j.marmicro.2014.06.004 |
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ftingv:oai:www.earth-prints.org:2122/9060 2023-05-15T18:00:46+02:00 Integrated stratigraphy of the St. Thomas section (Malta Island): A reference section for the lower Burdigalian of the Mediterranean Region Foresi, L. M. Baldassini, N. Sagnotti, L. Lirer, F. Di Stefano, A. Caricchi, Chiara Verducci, M. Salvatorini, G. Mazzei, R. Foresi, L. M. Baldassini, N. Sagnotti, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Lirer, F. Di Stefano, A. Caricchi, C. Verducci, M. Salvatorini, G. Mazzei, R. #PLACEHOLDER_PARENT_METADATA_VALUE# Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia 2014-06-17 http://hdl.handle.net/2122/9060 https://doi.org/10.1016/j.marmicro.2014.06.004 en eng Elsevier Science Limited Marine micropaleontology /111 (2014) 0377-8398 1872-6186 http://hdl.handle.net/2122/9060 doi:10.1016/j.marmicro.2014.06.004 restricted Mediterranean Early Miocene Calcareous nannofossils Planktonic Foraminifera Magnetostratigraphy 04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy article 2014 ftingv https://doi.org/10.1016/j.marmicro.2014.06.004 2022-07-29T06:06:38Z The 91.15 m thick St. Thomas section belongs to the Middle Globigerina Limestone, which is the intermediate member of the Globigerina Limestone Formation, and crops out along the eastern cliff of the Delimara Peninsula (the south-eastern part ofMalta Island). The sedimentary record is composed of alternating calcareous marls and marly limestones with subordinated prominent bioturbated indurated limestones that are deposited in a pelagic environment. For the first time paleomagnetic analyses of a Burdigalian succession have provided reliable data that allow the identification of five magnetozones that have been correlated to the Astronomically Tuned Neogene Time Scale, spanning the Early Miocene C6n–C5Dn interval. Calcareous plankton quantitative analyses integrated with paleomagnetic analyses, allowed us to identify and date several bioevents that have great potential for Mediterranean and extra-Mediterranean correlations in the interval between ~19.7 and ~17.2 Ma. In particular, the complete distributional range of the calcareous nannofossil Sphenolithus belemnos has been recorded as follows: the First Occurrence (FO) at 19.12 Ma, the First Common Occurrence (FCO) at 19.05 Ma, the Last Common Occurrence (LCO) at 18.44 Ma, and the Last Occurrence (LO) at 18.02 Ma. In addition, the FO and the FCO of Sphenolithus heteromorphus have been documented at 18.29 Ma and at 17.99 Ma, respectively. A new paracme interval in the lower part of the range of this species is described between 17.56 and 17.31 Ma. Concerning the planktonic Foraminifera, the main bioevents are the Common Interval top of Paragloborotalia siakensis at 19.55 Ma, a Common Interval of Globoquadrina dehiscens between 19.34 and 18.48 Ma, the Globigerinoides subquadratus FO at 18.43 Ma, and the onset of an acme interval of Paragloborotalia acrostoma that changes its coiling from random to prevalently sinistral at the same time, at 18.40 Ma. These new biostratigraphic data allowed us to place the succession in the standard Mediterranean calcareous plankton ... Article in Journal/Newspaper Planktonic foraminifera Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Marine Micropaleontology 111 66 89 |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Mediterranean Early Miocene Calcareous nannofossils Planktonic Foraminifera Magnetostratigraphy 04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy |
spellingShingle |
Mediterranean Early Miocene Calcareous nannofossils Planktonic Foraminifera Magnetostratigraphy 04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy Foresi, L. M. Baldassini, N. Sagnotti, L. Lirer, F. Di Stefano, A. Caricchi, Chiara Verducci, M. Salvatorini, G. Mazzei, R. Integrated stratigraphy of the St. Thomas section (Malta Island): A reference section for the lower Burdigalian of the Mediterranean Region |
topic_facet |
Mediterranean Early Miocene Calcareous nannofossils Planktonic Foraminifera Magnetostratigraphy 04. Solid Earth::04.04. Geology::04.04.10. Stratigraphy |
description |
The 91.15 m thick St. Thomas section belongs to the Middle Globigerina Limestone, which is the intermediate member of the Globigerina Limestone Formation, and crops out along the eastern cliff of the Delimara Peninsula (the south-eastern part ofMalta Island). The sedimentary record is composed of alternating calcareous marls and marly limestones with subordinated prominent bioturbated indurated limestones that are deposited in a pelagic environment. For the first time paleomagnetic analyses of a Burdigalian succession have provided reliable data that allow the identification of five magnetozones that have been correlated to the Astronomically Tuned Neogene Time Scale, spanning the Early Miocene C6n–C5Dn interval. Calcareous plankton quantitative analyses integrated with paleomagnetic analyses, allowed us to identify and date several bioevents that have great potential for Mediterranean and extra-Mediterranean correlations in the interval between ~19.7 and ~17.2 Ma. In particular, the complete distributional range of the calcareous nannofossil Sphenolithus belemnos has been recorded as follows: the First Occurrence (FO) at 19.12 Ma, the First Common Occurrence (FCO) at 19.05 Ma, the Last Common Occurrence (LCO) at 18.44 Ma, and the Last Occurrence (LO) at 18.02 Ma. In addition, the FO and the FCO of Sphenolithus heteromorphus have been documented at 18.29 Ma and at 17.99 Ma, respectively. A new paracme interval in the lower part of the range of this species is described between 17.56 and 17.31 Ma. Concerning the planktonic Foraminifera, the main bioevents are the Common Interval top of Paragloborotalia siakensis at 19.55 Ma, a Common Interval of Globoquadrina dehiscens between 19.34 and 18.48 Ma, the Globigerinoides subquadratus FO at 18.43 Ma, and the onset of an acme interval of Paragloborotalia acrostoma that changes its coiling from random to prevalently sinistral at the same time, at 18.40 Ma. These new biostratigraphic data allowed us to place the succession in the standard Mediterranean calcareous plankton ... |
author2 |
Foresi, L. M. Baldassini, N. Sagnotti, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia Lirer, F. Di Stefano, A. Caricchi, C. Verducci, M. Salvatorini, G. Mazzei, R. #PLACEHOLDER_PARENT_METADATA_VALUE# Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia |
format |
Article in Journal/Newspaper |
author |
Foresi, L. M. Baldassini, N. Sagnotti, L. Lirer, F. Di Stefano, A. Caricchi, Chiara Verducci, M. Salvatorini, G. Mazzei, R. |
author_facet |
Foresi, L. M. Baldassini, N. Sagnotti, L. Lirer, F. Di Stefano, A. Caricchi, Chiara Verducci, M. Salvatorini, G. Mazzei, R. |
author_sort |
Foresi, L. M. |
title |
Integrated stratigraphy of the St. Thomas section (Malta Island): A reference section for the lower Burdigalian of the Mediterranean Region |
title_short |
Integrated stratigraphy of the St. Thomas section (Malta Island): A reference section for the lower Burdigalian of the Mediterranean Region |
title_full |
Integrated stratigraphy of the St. Thomas section (Malta Island): A reference section for the lower Burdigalian of the Mediterranean Region |
title_fullStr |
Integrated stratigraphy of the St. Thomas section (Malta Island): A reference section for the lower Burdigalian of the Mediterranean Region |
title_full_unstemmed |
Integrated stratigraphy of the St. Thomas section (Malta Island): A reference section for the lower Burdigalian of the Mediterranean Region |
title_sort |
integrated stratigraphy of the st. thomas section (malta island): a reference section for the lower burdigalian of the mediterranean region |
publisher |
Elsevier Science Limited |
publishDate |
2014 |
url |
http://hdl.handle.net/2122/9060 https://doi.org/10.1016/j.marmicro.2014.06.004 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
Marine micropaleontology /111 (2014) 0377-8398 1872-6186 http://hdl.handle.net/2122/9060 doi:10.1016/j.marmicro.2014.06.004 |
op_rights |
restricted |
op_doi |
https://doi.org/10.1016/j.marmicro.2014.06.004 |
container_title |
Marine Micropaleontology |
container_volume |
111 |
container_start_page |
66 |
op_container_end_page |
89 |
_version_ |
1766169978933870592 |