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(Article of periodic en Anglais - 2010)

Document title

Quantifying large-scale historical formation of accommodation in the Mississippi Delta

Authors(s) and Affiliation(s)

MORTON R.A. (1) ; BERNIER J.C. (2) ; KELSO K.W. (3) ; BARRAS J.A. (4) ;
(1) US Geological Survey, Texas, Austin, ETATS-UNIS
(2) US Geological Survey, Florida, St Petersburg, ETATS-UNIS
(3) Jacobs Technology Inc., Florida, St Petersburg, ETATS-UNIS
(4) US Army Engineer Research and Development Center, Environmental Lab., Baton Rouge, ETATS-UNIS

Abstract

Large volumes of new accommodation have formed within the Mississippi Delta plain since the mid-1950s in association with rapid conversion of coastal wetlands to open water. The three-dimensional aspects and processes responsible for accommodation formation were quantified by comparing surface elevations, water depths, and vertical displacements of stratigraphic contacts that were correlated between short sediment cores. Integration of data from remotely sensed images, sediment cores, and water-depth surveys at 10 geologically diverse areas in the delta plain provided a basis for estimating the total volume of accommodation formed by interior-wetland subsidence and subsequent erosion. Results indicate that at most of the study areas subsidence was a greater contributor than erosion to the formation of accommodation associated with wetland loss

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2010, vol. 35, no14 [pp. 1625-1641]

Bibliographic references : 31 ref.

Collation : 13 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2000

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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