Multimedia Gallery
July 21, 2006
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Thick, muddy delta deposit compacts under its own weight, squeezing water out.
Over thousands of years, the thick, muddy delta deposit compacts under its own weight, squeezing water out. As a result, sea level rises and covers the wetlands.
Credit: Zina Deretsky, National Science Foundation
Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.
Additional information about general usage can be found in Conditions.
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Related story: Rise in Sea Level, Loss of Wetlands May Account for Unstable Ground in Mississippi Delta