A new interpolation method to measure delta evolution and sediment flux: Application to the late Holocene coastal plain of the Argens River in the western Mediterranean
| العنوان: | A new interpolation method to measure delta evolution and sediment flux: Application to the late Holocene coastal plain of the Argens River in the western Mediterranean |
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| المؤلفون: | Laurent Augustin, Jean-Philippe Degeai, Alain de Moya, Benoît Devillers, Luigi Ardito, Frédérique Bertoncello, Matteo Vacchi |
| المساهمون: | Laboratoire de géographie physique : Environnements Quaternaires et Actuels (LGP), Université Panthéon-Sorbonne (UP1)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Culture et Environnements, Préhistoire, Antiquité, Moyen-Age (CEPAM), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015 - 2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Collège de France (CdF)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Institut National de la Recherche Agronomique (INRA), Division technique INSU/SDU (DTI), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Archéologie des Sociétés Méditerranéennes (ASM), Université Paul-Valéry - Montpellier 3 (UM3)-Ministère de la Culture et de la Communication (MCC)-Centre National de la Recherche Scientifique (CNRS), Université Paul-Valéry - Montpellier 3 (UPVM)-Centre National de la Recherche Scientifique (CNRS)-Ministère de la Culture (MC), Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| المصدر: | Marine Geology Marine Geology, Elsevier, 2020, 424, pp.106159. ⟨10.1016/j.margeo.2020.106159⟩ Marine Geology, 2020, 424, pp.106159. ⟨10.1016/j.margeo.2020.106159⟩ |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Delta, Western Mediterranean, [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, 010504 meteorology & atmospheric sciences, Floodplain, Coastal plain, [SDE.MCG]Environmental Sciences/Global Changes, Coastal environment, Elevation modelling, Inorganic geochemistry, Late Holocene, Mediterranean delta, Molluscan fauna, Sediment flux, Fluvial, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, 010502 geochemistry & geophysics, Oceanography, 01 natural sciences, Sedimentary depositional environment, Geochemistry and Petrology, 14. Life underwater, Holocene, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences, geography, geography.geographical_feature_category, Sediment, Geology, 15. Life on land, 13. Climate action, [SDU]Sciences of the Universe [physics], [SHS.ENVIR]Humanities and Social Sciences/Environmental studies, Channel (geography) |
| الوصف: | International audience; Rapid environmental changes along the Mediterranean coasts influenced the sedimentary dynamics, shoreline position and human settlements in deltaic areas over the last millennia. An innovative and multiproxy approach using geostatistical modelling was developed to estimate geomorphic evolution and sediment fluxes in deltaic areas, while palaeoecological conditions and environmental changes were assessed from geochemistry and cluster analyses of molluscan fauna. This method was applied to the coastal plain of the Argens River (southern France) in the western Mediterranean. The study of facies associations led to the identification of depositional environments representative of prodelta, delta front, river channel, floodplain, marsh and abandoned channel. The late Holocene sediment flux in the Argens River bayhead delta ranged from 15,800 ± 2300 to 52,000 + 8500 m3.yr-1. The highest rates of sediment deposition and delta growth occurred between 2500 and 2000 cal yr BP during a period of high flood frequency in the western Mediterranean. A geomorphically-induced decrease in subaqueous sediment flux over the past 2500 years and an increase in fluvial activity from 1600 to 500 cal yr BP were primarily controlled by autogenic processes due to change in accommodation space, delta slope and tributary junctions. A sharp increase in subaerial sediment flux from 500 to 0 cal yr BP was probably driven by hydroclimatic change characterized by more frequent flooding during the Little Ice Age. High sediment fluxes and climate-driven fluvial activity were associated with a southward shift of the North Atlantic westerlies or a northward migration of the intertropical convergence zone. |
| اللغة: | English |
| تدمد: | 0025-3227 |
| DOI: | 10.1016/j.margeo.2020.106159⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e5933ebb49a0c808ca72ecc1fbadd4d http://hdl.handle.net/11568/1040276 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....1e5933ebb49a0c808ca72ecc1fbadd4d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00253227 |
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| DOI: | 10.1016/j.margeo.2020.106159⟩ |