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Potentialités et contraintes d'occupation du littoral du Bas-Médoc : bilan du projet LITAQ et réflexion sur les paléo-risques

hal.structure.identifierPôle de recherche pour l'organisation et la diffusion de l'information géographique [PRODIG]
dc.contributor.authorBERTRAND, Frédéric
hal.structure.identifierAusonius-Institut de recherche sur l'Antiquité et le Moyen âge
dc.contributor.authorVERDIN, Florence
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorEYNAUD, Frédérique
hal.structure.identifierPôle de recherche pour l'organisation et la diffusion de l'information géographique [PRODIG (UMR_8586 / UMR_D_215 / UM_115)]
dc.contributor.authorARNAUD-FASSETTA, Gilles
hal.structure.identifierLittoral, Environnement, Télédétection, Géomatique [LETG - Brest]
dc.contributor.authorSTÉPHAN, Pierre
hal.structure.identifierLittoral, Environnement, Télédétection, Géomatique [LETG - Caen]
dc.contributor.authorCOSTA, Stéphane
hal.structure.identifierLittoral, Environnement, Télédétection, Géomatique [LETG - Brest]
dc.contributor.authorSUANEZ, Serge
dc.date.created2018
dc.date.issued2019-04-25
dc.identifier.issn1142-2904
dc.description.abstractEnThe adaptation of territorial systems to the ongoing climate change is an issue which implies to test past populations abilities to cope, to “bounce back” or to adapt during similar past environmental changes. The chronostratigraphical and archaeological results, obtained in the frame of the LITAQ project, make it possible to better understand changes encountered by a coastal system (now on the shore front) whose intense occupation since the Neolithic period was linked to the exploitation of specific resources (salt, grazing), then inherent to a fluvial mouth and estuarine system, at present fossilized under the modern dune. One of the issues raised by these results is linked to the decline of salt-related activities during the whole Bronze period, whereas it is bracketed by a period of growing during the Neolithic (for which we were far from measuring the real amplitude) and by the first Iron Age during which salt production appears to be the main motivation for the settlement and the use of coastal marshes. However, the chronological gap, of about thirteen centuries, recorded between the Early Bronze Age (~2200 BC) and the Late Bronze Age (~900 BC), prevents us from using climate changes as a deterministic and unique factor of land-use changes of the Médoc Peninsula around the first millennium. The complex rhythms, that accompany those changes during this period and the subsequent Iron Age, invite us to consider the territorial vulnerability in a context of hydrogeomorphological modifications of the coast synchronously to those of natural components involved in the salt production process. Modalities of the spatial development of this activity (as deduced from the analysis of inventoried remains) in a context of restricted tidal exchanges (i.e. barred estuary), testify to the adaptability of protohistoric Médocan communities, which faced a slow and progressive disturbance of the coastal system; they attest also to the past resilience, in its systemic sense, of a territory nowadays far from major influences.
dc.description.sponsorshipUsing the world in ancient societies : processes and forms of appropriation of space in Long Time - ANR-10-LABX-0052
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.language.isoen
dc.publisherAFEQ-CNF INQUA
dc.subject.encoastal environment
dc.subject.enpalaeo-risks
dc.subject.enestuary
dc.subject.ensalt marshes
dc.subject.envulnerability
dc.subject.enland use
dc.subject.enadaptation
dc.titlePotentialités et contraintes d'occupation du littoral du Bas-Médoc : bilan du projet LITAQ et réflexion sur les paléo-risques
dc.title.enSettlement potential and constraints on the Lower Médoc coastline: results of the LITAQ project and considerations on coastal palaeo-risks in protohistoric times
dc.typeArticle de revue
dc.identifier.doi10.4000/quaternaire.11228
dc.subject.halSciences de l'Homme et Société/Archéologie et Préhistoire
dc.subject.halSciences de l'Homme et Société/Etudes de l'environnement
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre
dc.subject.halSciences de l'Homme et Société/Géographie
bordeaux.journalQuaternaire
bordeaux.page97-111
bordeaux.volume30
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-01968991
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01968991v1
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