Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain
Abstract On the Island of Samos (East Aegean region, Greece), two sedimentary basins are filled by thick continental series dated to the Late Miocene to Early Pliocene. A multidisciplinary study has been performed including (1) the definition of 21 sedimentary facies, (2) a review of the biological...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-11-01
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| Series: | The Depositional Record |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/dep2.249 |
| _version_ | 1797523775109988352 |
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| author | Youri Hamon Rémy Deschamps Christian Gorini Dimitris Sakellariou Cédric Bailly Tarik Kernif Alina Bérénice Christ Mathilde Adelinet Jérôme Fortin |
| author_facet | Youri Hamon Rémy Deschamps Christian Gorini Dimitris Sakellariou Cédric Bailly Tarik Kernif Alina Bérénice Christ Mathilde Adelinet Jérôme Fortin |
| author_sort | Youri Hamon |
| collection | DOAJ |
| description | Abstract On the Island of Samos (East Aegean region, Greece), two sedimentary basins are filled by thick continental series dated to the Late Miocene to Early Pliocene. A multidisciplinary study has been performed including (1) the definition of 21 sedimentary facies, (2) a review of the biological components and (3) carbon, oxygen and strontium stable isotope analyses. The succession is characterised by various depositional settings and hydrochemical compositions. Five main stages of basin evolution have been identified: (1) The Late Serravallian is marked by the development of alluvial fans and fan delta; (2) during the Lower Tortonian, isolated shallow lakes with variable salinity, from fresh to brackish, developed under warm and relatively humid conditions; (3) the Middle to Upper Tortonian is marked by the development of a large and deep lake with saline and alkaline waters, under colder and drier conditions; (4) the Latest Tortonian to Messinian period is represented by an ephemeral alluvial system, developed under a dry climate; (5) during the Zanclean, a palustrine and paludal wetland system, dominated by tufa carbonates, developed under moderately humid conditions. This succession is of particular interest for the reconstruction of the palaeoenvironmental evolution of the transition zone between the Mediterranean domain, and the Paratethys and circum‐Paratethys areas. The geochemical data and the presence of flora (diatoms) and fauna (gastropods) of marine affinity suggest transient ingressions of marine‐related water or groundwater inflows as early as the Lower Tortonian. The Samos succession records the complex interaction between the regional geodynamics and climate. The extensional regime of the Eastern Aegean zone generates subsidence, interrupted in the mid‐Tortonian (9 Ma) by a brief compressive event and a major exposure of the basins. Furthermore, the Late Miocene progressive aridification, followed by a change to a more humid climate (Pliocene) is also a major driver of the sedimentation. |
| first_indexed | 2024-03-10T08:47:51Z |
| format | Article |
| id | doaj.art-8364b267a4c34de1afe16b9e27ef1afb |
| institution | Directory Open Access Journal |
| issn | 2055-4877 |
| language | English |
| last_indexed | 2024-03-10T08:47:51Z |
| publishDate | 2023-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Depositional Record |
| spelling | doaj.art-8364b267a4c34de1afe16b9e27ef1afb2023-11-22T07:45:38ZengWileyThe Depositional Record2055-48772023-11-01941095113010.1002/dep2.249Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domainYouri Hamon0Rémy Deschamps1Christian Gorini2Dimitris Sakellariou3Cédric Bailly4Tarik Kernif5Alina Bérénice Christ6Mathilde Adelinet7Jérôme Fortin8Earth Sciences and Environmental Technologies Division, IFP Energies Nouvelles Rueil‐Malmaison FranceEarth Sciences and Environmental Technologies Division, IFP Energies Nouvelles Rueil‐Malmaison FranceUMR 7193 CNRS‐UPMC, Institut des Sciences de la Terre Paris, Sorbonne Université Paris FranceInstitute of Oceanography, Hellenic Center for Marine Research Anavyssos GreeceCNRS, GEOPS, Université Paris‐Saclay Orsay FranceGéosciences Rennes UMR CNRS 6118, Université Rennes 1 Rennes FranceEarth Sciences and Environmental Technologies Division, IFP Energies Nouvelles Rueil‐Malmaison FranceIFP Energies Nouvelles, IFP School Rueil‐Malmaison Cedex FranceLaboratoire de Géologie, Ecole Normale Supérieure/CNRS UMR8538, PSL Research University Paris FranceAbstract On the Island of Samos (East Aegean region, Greece), two sedimentary basins are filled by thick continental series dated to the Late Miocene to Early Pliocene. A multidisciplinary study has been performed including (1) the definition of 21 sedimentary facies, (2) a review of the biological components and (3) carbon, oxygen and strontium stable isotope analyses. The succession is characterised by various depositional settings and hydrochemical compositions. Five main stages of basin evolution have been identified: (1) The Late Serravallian is marked by the development of alluvial fans and fan delta; (2) during the Lower Tortonian, isolated shallow lakes with variable salinity, from fresh to brackish, developed under warm and relatively humid conditions; (3) the Middle to Upper Tortonian is marked by the development of a large and deep lake with saline and alkaline waters, under colder and drier conditions; (4) the Latest Tortonian to Messinian period is represented by an ephemeral alluvial system, developed under a dry climate; (5) during the Zanclean, a palustrine and paludal wetland system, dominated by tufa carbonates, developed under moderately humid conditions. This succession is of particular interest for the reconstruction of the palaeoenvironmental evolution of the transition zone between the Mediterranean domain, and the Paratethys and circum‐Paratethys areas. The geochemical data and the presence of flora (diatoms) and fauna (gastropods) of marine affinity suggest transient ingressions of marine‐related water or groundwater inflows as early as the Lower Tortonian. The Samos succession records the complex interaction between the regional geodynamics and climate. The extensional regime of the Eastern Aegean zone generates subsidence, interrupted in the mid‐Tortonian (9 Ma) by a brief compressive event and a major exposure of the basins. Furthermore, the Late Miocene progressive aridification, followed by a change to a more humid climate (Pliocene) is also a major driver of the sedimentation.https://doi.org/10.1002/dep2.249depositional modelsEast Aegean arealacustrine carbonatesLate Miocenepalaeoclimatetectonic |
| spellingShingle | Youri Hamon Rémy Deschamps Christian Gorini Dimitris Sakellariou Cédric Bailly Tarik Kernif Alina Bérénice Christ Mathilde Adelinet Jérôme Fortin Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain The Depositional Record depositional models East Aegean area lacustrine carbonates Late Miocene palaeoclimate tectonic |
| title | Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain |
| title_full | Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain |
| title_fullStr | Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain |
| title_full_unstemmed | Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain |
| title_short | Reconstruction of the Late Miocene to Pliocene continental succession of Samos Island: Palaeoenvironmental implications for the Eastern Aegean domain |
| title_sort | reconstruction of the late miocene to pliocene continental succession of samos island palaeoenvironmental implications for the eastern aegean domain |
| topic | depositional models East Aegean area lacustrine carbonates Late Miocene palaeoclimate tectonic |
| url | https://doi.org/10.1002/dep2.249 |
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