A Long-Term Record of Quaternary Facies Patterns and Palaeonvironmental Trends from the Po Plain (NE Italy) as Revealed by Bio-Sedimentary Data
Understanding Quaternary dynamics of delta-coastal plains across multiple glacial-interglacial cycles in the Milankovitch band (~100 kyrs) is crucial to achieve a robust evaluation of possible environmental response to future climate-change scenarios. In this work, we document the long-term bio-sedi...
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MDPI AG
2021-09-01
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| author | Veronica Rossi Alessandro Amorosi Giulia Barbieri Stefano Claudio Vaiani Matteo Germano Bruno Campo |
| author_facet | Veronica Rossi Alessandro Amorosi Giulia Barbieri Stefano Claudio Vaiani Matteo Germano Bruno Campo |
| author_sort | Veronica Rossi |
| collection | DOAJ |
| description | Understanding Quaternary dynamics of delta-coastal plains across multiple glacial-interglacial cycles in the Milankovitch band (~100 kyrs) is crucial to achieve a robust evaluation of possible environmental response to future climate-change scenarios. In this work, we document the long-term bio-sedimentary record of core 204 S16 (~205 m long), which covers a wide portion of the post-MPR (Mid-Pleistocene Revolution) interval, taking advantage of the highly subsiding context of the SE Po Plain (NE Italy). Detailed facies characterization through an integrated sedimentological and meiofauna (benthic foraminifers and ostracods) approach allowed for the identification of a repetitive pattern of alluvial deposits alternating with four fossiliferous, paralic to shallow-marine units (Units 1–4). The transgressive surfaces identified at the base of these units mark major flooding events, forced by Holocene (Unit 4), Late Pleistocene (Unit 3) and Middle Pleistocene (Units 1, 2) interglacials. Distinct stratigraphic patterns typify the Middle Pleistocene interval, which includes coastal-marine (tidal inlet and bay) deposits. In contrast, lagoonal sediments record the maximum marine influence in the Late Pleistocene-Holocene succession. As a whole, the meiofauna tracks a regressive trend, with the deepest conditions recorded by the oldest Unit 1 (MIS 9/11 age?). |
| first_indexed | 2024-03-10T06:32:38Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 2076-3263 |
| language | English |
| last_indexed | 2024-03-10T06:32:38Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
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| series | Geosciences |
| spelling | doaj.art-4ebf1c7b44d2481b8360a6393f38f9ed2023-11-22T18:23:21ZengMDPI AGGeosciences2076-32632021-09-01111040110.3390/geosciences11100401A Long-Term Record of Quaternary Facies Patterns and Palaeonvironmental Trends from the Po Plain (NE Italy) as Revealed by Bio-Sedimentary DataVeronica Rossi0Alessandro Amorosi1Giulia Barbieri2Stefano Claudio Vaiani3Matteo Germano4Bruno Campo5Department of Biological, Geological and Environmental Sciences, University of Bologna, Via Zamboni 67, 40126 Bologna, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Bologna, Via Zamboni 67, 40126 Bologna, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Bologna, Via Zamboni 67, 40126 Bologna, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Bologna, Via Zamboni 67, 40126 Bologna, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Bologna, Via Zamboni 67, 40126 Bologna, ItalyDepartment of Biological, Geological and Environmental Sciences, University of Bologna, Via Zamboni 67, 40126 Bologna, ItalyUnderstanding Quaternary dynamics of delta-coastal plains across multiple glacial-interglacial cycles in the Milankovitch band (~100 kyrs) is crucial to achieve a robust evaluation of possible environmental response to future climate-change scenarios. In this work, we document the long-term bio-sedimentary record of core 204 S16 (~205 m long), which covers a wide portion of the post-MPR (Mid-Pleistocene Revolution) interval, taking advantage of the highly subsiding context of the SE Po Plain (NE Italy). Detailed facies characterization through an integrated sedimentological and meiofauna (benthic foraminifers and ostracods) approach allowed for the identification of a repetitive pattern of alluvial deposits alternating with four fossiliferous, paralic to shallow-marine units (Units 1–4). The transgressive surfaces identified at the base of these units mark major flooding events, forced by Holocene (Unit 4), Late Pleistocene (Unit 3) and Middle Pleistocene (Units 1, 2) interglacials. Distinct stratigraphic patterns typify the Middle Pleistocene interval, which includes coastal-marine (tidal inlet and bay) deposits. In contrast, lagoonal sediments record the maximum marine influence in the Late Pleistocene-Holocene succession. As a whole, the meiofauna tracks a regressive trend, with the deepest conditions recorded by the oldest Unit 1 (MIS 9/11 age?).https://www.mdpi.com/2076-3263/11/10/401Quaternary changesbenthic foraminifersostracodsPleistocenecyclic sedimentationMediterranean coastal plains |
| spellingShingle | Veronica Rossi Alessandro Amorosi Giulia Barbieri Stefano Claudio Vaiani Matteo Germano Bruno Campo A Long-Term Record of Quaternary Facies Patterns and Palaeonvironmental Trends from the Po Plain (NE Italy) as Revealed by Bio-Sedimentary Data Geosciences Quaternary changes benthic foraminifers ostracods Pleistocene cyclic sedimentation Mediterranean coastal plains |
| title | A Long-Term Record of Quaternary Facies Patterns and Palaeonvironmental Trends from the Po Plain (NE Italy) as Revealed by Bio-Sedimentary Data |
| title_full | A Long-Term Record of Quaternary Facies Patterns and Palaeonvironmental Trends from the Po Plain (NE Italy) as Revealed by Bio-Sedimentary Data |
| title_fullStr | A Long-Term Record of Quaternary Facies Patterns and Palaeonvironmental Trends from the Po Plain (NE Italy) as Revealed by Bio-Sedimentary Data |
| title_full_unstemmed | A Long-Term Record of Quaternary Facies Patterns and Palaeonvironmental Trends from the Po Plain (NE Italy) as Revealed by Bio-Sedimentary Data |
| title_short | A Long-Term Record of Quaternary Facies Patterns and Palaeonvironmental Trends from the Po Plain (NE Italy) as Revealed by Bio-Sedimentary Data |
| title_sort | long term record of quaternary facies patterns and palaeonvironmental trends from the po plain ne italy as revealed by bio sedimentary data |
| topic | Quaternary changes benthic foraminifers ostracods Pleistocene cyclic sedimentation Mediterranean coastal plains |
| url | https://www.mdpi.com/2076-3263/11/10/401 |
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