Sediment Erosion and Redistribution in Fine-Grained Shelf Environments
Sediment Erosion and Redistribution in Fine-Grained Shelf Environments

Author:

Publisher:

Published: 2007

Total Pages: 7

ISBN-13:

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My long-term goal within the EuroSTRATAFORM program has been to increase our ability to predict sediment transport in fine-grained regions of the continental shelf through field work and application and further development of models at the Adriatic and Gulf of Lions EuroSTRATAFORM sites. Testing and extending our conceptual and numerical sediment transport models at these sites is an important goal of the EuroSTRATAFORM shelf process studies. The broad objectives of this project are to 1) measure along-shelf, across-shelf and temporal variations in critical shear stress and entrainment rates; 2) compare suspended sediment concentrations measured by bottom tripod with values calculated using measured entrainment rates; and 3) explore the implications of spatial variations in critical shear stress on cross-shelf sediment transport and deposition. During FY07 I was given a no-cost extension in order to 1) serve as lead guest editor of a special issue of Continental Shelf Research devoted to recent studies of hydrodynamics and sediment dynamics in the Gulf of Lions (Xavier Durrieu de Madron and Pere Puig are co-editors); and 2) complete analysis of erosion measurements made in the Gulf of Lions during the EuroSTRATAFORM program.

Sediments, Morphology and Sedimentary Processes on Continental Shelves
Sediments, Morphology and Sedimentary Processes on Continental Shelves

Author: Michael Z. Li

Publisher: John Wiley & Sons

Published: 2012-02-21

Total Pages: 442

ISBN-13: 1118311205

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The application of multibeam and sediment transport measurement technologies and the adoption of multi-faceted research methodologies have greatly advanced our understanding of the sedimentary processes on continental shelves in the last decade. This book uniquely blends cutting-edge research and state-of-the art review articles that take stock of new advances in multibeam mapping and sediment transport technologies, spatial analysis and modelling, and the applications of these advances to the understanding of shelf sediments, morphodynamics, and sedimentary processes. Case studies are also presented to illustrate the utilization of seabed property and process knowledge in habitat mapping and ocean management With its mix of papers focusing on technological advances, integration of shelf morphology and processes, and the application of these advances to coastal and ocean management, this Special Publication volume will serve as a milestone reference for professional marine scientists and as advanced text for students in marine geology, sedimentology and oceanography. This book is part of the International Association of Sedimentologists (IAS) Special Publications. The Special Publications from the IAS are a set of thematic volumes edited by specialists on subjects of central interest to sedimentologists. Papers are reviewed and printed to the same high standards as those published in the journal Sedimentology and several of these volumes have become standard works of reference.

Deep Marine Systems
Deep Marine Systems

Author: Kevin T. Pickering

Publisher: John Wiley & Sons

Published: 2015-10-23

Total Pages: 672

ISBN-13: 1118865480

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Deep-water (below wave base) processes, although generallyhidden from view, shape the sedimentary record of more than 65% ofthe Earth’s surface, including large parts of ancientmountain belts. This book aims to inform advanced-levelundergraduate and postgraduate students, and professional Earthscientists with interests in physical oceanography and hydrocarbonexploration and production, about many of the important physicalaspects of deep-water (mainly deep-marine) systems. The authorsconsider transport and deposition in the deep sea, trace-fossilassemblages, and facies stacking patterns as an archive of theunderlying controls on deposit architecture (e.g., seismicity,climate change, autocyclicity). Topics include modern and ancientdeep-water sedimentary environments, tectonic settings, and howbasinal and extra-basinal processes generate the typicalcharacteristics of basin slopes, submarine canyons, contouritemounds and drifts, submarine fans, basin floors and abyssalplains.

Fine-grained Sedimentation on the Chenier Plain Coast and Inner Continental Shelf, Northern Gulf of Mexico
Fine-grained Sedimentation on the Chenier Plain Coast and Inner Continental Shelf, Northern Gulf of Mexico

Author: Amy Elizabeth Draut

Publisher:

Published: 2003

Total Pages: 392

ISBN-13:

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This thesis examines the evolution of a mud-dominated coastal sedimentary system on multiple time scales. Fine-grained systems exhibit different properties and behavior from sandy coasts, and have received relatively little research attention to date. Evidence is presented for shoreline accretion under energetic conditions associated with storms and winter cold fronts. The identification of energetic events as agents of coastal accretion stands in contrast to the traditional assumption that low-energy conditions are required for deposition of fine-grained sediment. Mudflat accretion is proposed to depend upon the presence of an unconsolidated mud sea floor immediately offshore, proximity to a fluvial sediment source, onshore winds, which generate waves that resuspend sediment and advect it shoreward, and a low tidal range. This study constrains the present influence of the Atchafalaya River on stratigraphic evolution of the inner continental shelf in western Louisiana. Sedimentary and acoustic data are used to identify the western limit of the distal Atchafalaya prodelta and to estimate the proportion of Atchafalaya River sediment that accumulates on the inner shelf seaward of Louisiana's chenier plain coast. The results demonstrate a link between sedimentary facies distribution on the inner shelf and patterns of accretion and shoreline retreat on the chenier plain coast.

Cohesive Sediments in Open Channels
Cohesive Sediments in Open Channels

Author: Emmanuel Partheniades

Publisher: Butterworth-Heinemann

Published: 2009-04-23

Total Pages: 375

ISBN-13: 0080877974

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Control the impact of cohesive sediments on open channels by managing the effects of silt, clay and other sediments in harbors, estuaries and reservoirs. Cohesive Sediments in Open Channels provides you with a practical framework for understanding how cohesive sediments are transported, deposited and eroded. One of the first books to approach the subject from an engineering’s perspective, this book supplies insight into applying hydraulic design as well as understanding the behavior of cohesive sediments in a flow field. Properties and of the nature and the origin of the interparticle physicochemical forces The forces between clay particles and the process of flocculation Processes and dynamics of flocculation and the hydrodynamic behavior of cohesive sediments Transport processes of sediments by flowing water and related equations are first presented and explained Deposition and resuspension of beds deposited from suspension from flowing waters Engineering applications of the hydraulics of cohesive sediments

Shelf Sediment Transport: Process and Pattern
Shelf Sediment Transport: Process and Pattern

Author: Donald J. P. Swift

Publisher:

Published: 1973

Total Pages: 684

ISBN-13:

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This volume contains papers presented in a symposium on Shelf Sediment Transport conducted at the annual meeting of the Geological Society of America held in Washington, D.C., November 1971.