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Sands channels mudflats

Sediment Transport and Morphologic Changes

by Patrick Lesueur (editorial coordination)
january 2007
[NR] format 40 pages In stock
7,00 €
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The geological environment and different sources of the sedimentary particles making up the estuary's bottom are reviewed. The estuary's morphology is characterized, taking into account its evolution over a century or so. Then the sedimentary cover is characterized or updated, focusing on the study of mudflats. In all, over two thousand sediment samples have been analyzed, complemented by acoustic imagery surveys (sidescan sonar) and underwater video. The long-term (century scale) and short-term (less than a year) changes in sedimentary cover are described and interpreted and a long-term forecast is envisaged on how the estuary will evolve in morphodynamic terms.

Table of contents

Chapter I - What sediment is in the lower Seine and where does it come from?
Geological context of the Seine Estuary
Pre-Quaternary substrate
Quaternary deposits in the lower Seine valley
The origin of mobile sediment in the estuary
Sands and gravels
Current contribution from the upstream catchment
Current intra-estuary contributions of sands and gravels
Current contributions of marine sand
Silts and muds       
The modern contribution of fine particles from the catchment upstream
Mud supply from the estuary itself
Mud supply from the marine environment
Chapter II - The Seine river: an estuarine morphology under human control
Upstream from Rouen, a natural estuary
From Rouen to Quillebeuf-sur-Seine, a channelized estuary  
Downstream from Quillebeuf-sur-Seine, a saline estuary
The evolution of the estuary from the 19th century to the end of the 1970s
The history of the principal modifications
The morphological evolution of the downstream estuary up until the 1970s
The evolution of the estuary over the course of the last 20 years
Modifications from 1980 to 2000
Morphological changes over the last 20 years
Chapter III – The surficial sediments of the Seine estuary and their evolution
Analytical methodology
Fluvial estuary sediments upstream from Rouen
Seine channel sediments from Rouen to Quillebeuf-sur-Seine
Estuary sediment downstream from Quillebeuf-sur-Seine
Downstream estuary sediments in the navigational channel  
Sediment at the mouth of the Seine
The current situation: a map of sediments at the mouth
Evolution of sedimentation in the Seine mouth over the last century
Seasonal fluctuations in the siltation of the Seine mouth
The sediments in the eastern Bay of the Seine
A summary of sediment studies in the Seine Estuary and the nearshore area
Conclusion and perspectives



More contents


Language(s): English

Publisher: Ifremer

Co-publishers: GIP Seine-Aval, Éditions Quae

Edition: 1st edition

Collection: Programme scientifique Seine-Aval

Published: 1 january 2007

Reference Book: 02010

EAN13 Book: 9782759200092

Format (in mm) Book: [NR]

Pages count Book: 40

Weight (in grammes): 200 (Book)


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