thumbnail

Geologic controls on sediment distribution and transport pathways around the Chandeleur Islands, LA., USA

By: , and 

Links

  • The Publications Warehouse does not have links to digital versions of this publication at this time
  • Download citation as: RIS | Dublin Core

Abstract

Geophysical surveys around the Chandeleur Islands provide the necessary data to map the thickness and distribution of the Holocene deposit associated with this barrier island system. This system rests uncomformably on St. Bernard Delta deposits of the Mississippi Delta plain and is thinnest under the central part of the island chain and thickest at the northern and southern ends. The zone of divergence in the bidirectional littoral transport system coincides with the thin central part. An estimate of northward littoral transport rate based on lithosome age and the volume of sediment that has accumulated at the northern end of the transport cell suggests the average transport rate over the life of the system is greater than present day fair-weather estimates. This difference may be attributed to changes in transport rates through the life of the system, to changes in the rate of sea-level rise or to storms playing a more dominant role than fair-weather waves in littoral transport.

Study Area

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Geologic controls on sediment distribution and transport pathways around the Chandeleur Islands, LA., USA
Volume 3
Year Published 2011
Language English
Publisher World Scientific
Contributing office(s) Woods Hole Coastal and Marine Science Center
Description 16 p.
Larger Work Type Conference Paper
Larger Work Title The proceedings of the Coastal Sediments 2011
First page 2184
Last page 2197
Conference Title Coastal Sediments 2011
Conference Location Miami, Florida
Conference Date May 2-6, 2011
Country United States
State Louisiana
Other Geospatial Chandeleur Islands
Online Only (Y/N) N
Additional Online Files (Y/N) N