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Holocene history of the River Seine, Paris, France: bio-chronostratigraphic and geomorphological evidence from the Quai-Branly

INRAP, 7 rue de Madrid, 75008 Paris, France, UMR8591 Laboratoire CNRS de Géographie Physique, 1 pl. A. Briand 92195 Meudon, France, chausse{at}cnrs-bellevue.fr

Chantal Leroyer

Ministère de la Culture and UMR6566, Centre National de Préhistoire, 38 rue du 26e RI, 24000 Périgueux, France

Olivier Girardclos

Centre d'Etude en Dendrochronologie et de Recherche en Ecologie et Paléo-écologie, 12 av. de Chardonnet, 25000 Besançon, France

Gisèle Allenet

INRAP, 7 rue de Madrid, 75008 Paris, France, Centre National de Préhistoire, 38 rue du 26e RI, 24000 Périgueux, France

Patrick Pion

Maison de l'Archéologie et de l'Ethnologie/UMR7055, Université Paris X, 21 allée de l'Université, 92023 Nanterre cedex, France

Pascal Raymond

INRAP, 7 rue de Madrid, 75008 Paris, France

Bio-chronostratigraphic observations compiled from Quai-Branly in Paris (France) and their comparison with previous studies in the Paris Basin allow documentation of the morphodynamic evolution of the River Seine during the middle and late Holocene. This history begins in the Boreal (between 9500 and 8850 cal. BP), with the deposition of tufa, expressing a stabilized river bed. During the second part of the sub-Boreal the water-table was low. At the beginning of the sub-Atlantic (towards 2800/2700 cal. BP), alluvial dynamics increase, as is recorded elsewhere throughout the Paris Basin. At the beginning of the second part of the sub-Atlantic (around 2000 cal. BP), flood dynamics persisted at a lower intensity. Human occupation occurred from the fifth century AD. Before or around the beginning of the seventeenth century AD, a natural levee was built, indicating the progressive attachment of the Quai-Branly area to the floodplain. The hydrodynamic evolution of the River Seine observed at the Quai-Branly site is similar to that recorded in other river valley floors of the Paris Basin. This evolution appears to be in response to global climatic changes rather than to variations induced by human activities.

Key Words: River Seine • France • Holocene • hydrodynamic evolution • climatic response • vegetation landscape • pollen data • dendrochronology.

The Holocene, Vol. 18, No. 6, 967-980 (2008)
DOI: 10.1177/0959683608093535


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