Geoscience and geoarchaeology as tools to understand Holocene valley history

Geomorphological and geoarchaeological studies of valley bottoms can help to identify the factors controlling the evolution of physical environments and their complex interactions with societies. Several conceptual "models" highlight broadly synchronous palaeohydrological changes during th...

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description Geomorphological and geoarchaeological studies of valley bottoms can help to identify the factors controlling the evolution of physical environments and their complex interactions with societies. Several conceptual "models" highlight broadly synchronous palaeohydrological changes during the Last Post-Glacial period. During recent millennia, it is possible to characterise, with variable precision, flood hazards in terms of frequency and magnitude (submersion, erosion) and therefore evaluate the fluvial risk facing societies. In light of this, it is fundamental for fluvial palaeoenvironmental studies to consider three components : palaeohydrography, palaeohydrology and palaeohydraulics. This combined approach is applied to both rural and urban areas on the deltaic plains of the Rhone (southern France) and Isonzo (northern Italy) rivers.Original Abstract: Les recherches geomorphologiques et geoarcheologiques, appliquees a l'etude des fonds de vallee, permettent de determiner les facteurs controlant l'evolution des milieux physiques et ses interactions complexes avec les societes. Plusieurs < mo deles > conceptuels mettent en evidence des fluctuations paleohydrologiques plus ou moins synchrones au cours du dernier Post-Glaciaire. Sur les derniers millenaires, il est possible de periodiser, avec plus ou moins de precision, l'alea de crue en termes de frequence et de magnitude (submersion, erosion) et, ainsi, de juger du risque fluvial. Pour cela, les methodes d'etude des paleoenvironnements fluviaux doivent necessairement et simultanement prendre en compte trois composantes majeures de l'hydrogeomorphologie : la paleohydrographie, la paleohydrologie et la paleohydraulique. Cette approche a ete appliquee en milieu rural et urbain dans les plaines deltaiques du Rhone (France du Sud) et de l'Isonzo (Italie du Nord).
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Several conceptual "models" highlight broadly synchronous palaeohydrological changes during the Last Post-Glacial period. During recent millennia, it is possible to characterise, with variable precision, flood hazards in terms of frequency and magnitude (submersion, erosion) and therefore evaluate the fluvial risk facing societies. In light of this, it is fundamental for fluvial palaeoenvironmental studies to consider three components : palaeohydrography, palaeohydrology and palaeohydraulics. This combined approach is applied to both rural and urban areas on the deltaic plains of the Rhone (southern France) and Isonzo (northern Italy) rivers.Original Abstract: Les recherches geomorphologiques et geoarcheologiques, appliquees a l'etude des fonds de vallee, permettent de determiner les facteurs controlant l'evolution des milieux physiques et ses interactions complexes avec les societes. 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source Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; OpenEdition Journals; OpenEdition Freemium for Journals
subjects Marine
title Geoscience and geoarchaeology as tools to understand Holocene valley history
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