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Age constraints for the Trachilos footprints from Crete
We present an updated time frame for the 30 m thick late Miocene sedimentary Trachilos section from the island of Crete that contains the potentially oldest hominin footprints. The section is characterized by normal magnetic polarity. New and published foraminifera biostratigraphy results suggest an...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8505496/ https://www.ncbi.nlm.nih.gov/pubmed/34635686 http://dx.doi.org/10.1038/s41598-021-98618-0 |
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author | Kirscher, Uwe El Atfy, Haytham Gärtner, Andreas Dallanave, Edoardo Munz, Philipp Niedźwiedzki, Grzegorz Athanassiou, Athanassios Fassoulas, Charalampos Linnemann, Ulf Hofmann, Mandy Bennett, Matthew Ahlberg, Per Erik Böhme, Madelaine |
author_facet | Kirscher, Uwe El Atfy, Haytham Gärtner, Andreas Dallanave, Edoardo Munz, Philipp Niedźwiedzki, Grzegorz Athanassiou, Athanassios Fassoulas, Charalampos Linnemann, Ulf Hofmann, Mandy Bennett, Matthew Ahlberg, Per Erik Böhme, Madelaine |
author_sort | Kirscher, Uwe |
collection | PubMed |
description | We present an updated time frame for the 30 m thick late Miocene sedimentary Trachilos section from the island of Crete that contains the potentially oldest hominin footprints. The section is characterized by normal magnetic polarity. New and published foraminifera biostratigraphy results suggest an age of the section within the Mediterranean biozone MMi13d, younger than ~ 6.4 Ma. Calcareous nannoplankton data from sediments exposed near Trachilos and belonging to the same sub-basin indicate deposition during calcareous nannofossil biozone CN9bB, between 6.023 and 6.727 Ma. By integrating the magneto- and biostratigraphic data we correlate the Trachilos section with normal polarity Chron C3An.1n, between 6.272 and 6.023 Ma. Using cyclostratigraphic data based on magnetic susceptibility, we constrain the Trachilos footprints age at ~ 6.05 Ma, roughly 0.35 Ma older than previously thought. Some uncertainty remains related to an inaccessible interval of ~ 8 m section and the possibility that the normal polarity might represent the slightly older Chron C3An.2n. Sediment accumulation rate and biostratigraphic arguments, however, stand against these points and favor a deposition during Chron C3An.1n. |
format | Online Article Text |
id | pubmed-8505496 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-85054962021-10-13 Age constraints for the Trachilos footprints from Crete Kirscher, Uwe El Atfy, Haytham Gärtner, Andreas Dallanave, Edoardo Munz, Philipp Niedźwiedzki, Grzegorz Athanassiou, Athanassios Fassoulas, Charalampos Linnemann, Ulf Hofmann, Mandy Bennett, Matthew Ahlberg, Per Erik Böhme, Madelaine Sci Rep Article We present an updated time frame for the 30 m thick late Miocene sedimentary Trachilos section from the island of Crete that contains the potentially oldest hominin footprints. The section is characterized by normal magnetic polarity. New and published foraminifera biostratigraphy results suggest an age of the section within the Mediterranean biozone MMi13d, younger than ~ 6.4 Ma. Calcareous nannoplankton data from sediments exposed near Trachilos and belonging to the same sub-basin indicate deposition during calcareous nannofossil biozone CN9bB, between 6.023 and 6.727 Ma. By integrating the magneto- and biostratigraphic data we correlate the Trachilos section with normal polarity Chron C3An.1n, between 6.272 and 6.023 Ma. Using cyclostratigraphic data based on magnetic susceptibility, we constrain the Trachilos footprints age at ~ 6.05 Ma, roughly 0.35 Ma older than previously thought. Some uncertainty remains related to an inaccessible interval of ~ 8 m section and the possibility that the normal polarity might represent the slightly older Chron C3An.2n. Sediment accumulation rate and biostratigraphic arguments, however, stand against these points and favor a deposition during Chron C3An.1n. Nature Publishing Group UK 2021-10-11 /pmc/articles/PMC8505496/ /pubmed/34635686 http://dx.doi.org/10.1038/s41598-021-98618-0 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Kirscher, Uwe El Atfy, Haytham Gärtner, Andreas Dallanave, Edoardo Munz, Philipp Niedźwiedzki, Grzegorz Athanassiou, Athanassios Fassoulas, Charalampos Linnemann, Ulf Hofmann, Mandy Bennett, Matthew Ahlberg, Per Erik Böhme, Madelaine Age constraints for the Trachilos footprints from Crete |
title | Age constraints for the Trachilos footprints from Crete |
title_full | Age constraints for the Trachilos footprints from Crete |
title_fullStr | Age constraints for the Trachilos footprints from Crete |
title_full_unstemmed | Age constraints for the Trachilos footprints from Crete |
title_short | Age constraints for the Trachilos footprints from Crete |
title_sort | age constraints for the trachilos footprints from crete |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8505496/ https://www.ncbi.nlm.nih.gov/pubmed/34635686 http://dx.doi.org/10.1038/s41598-021-98618-0 |
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