Current subsidence rates due to compaction of Holocene sediments in southern Louisiana


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dc.contributor.author Meckel, T. A.
dc.contributor.author ten Brink, Uri S.
dc.contributor.author Williams, S. Jeffress
dc.date.accessioned 2007-05-01T20:36:55Z
dc.date.available 2007-05-01T20:36:55Z
dc.date.issued 2006-06-14
dc.identifier.citation Geophysical Research Letters 33 (2006): L11403 en
dc.identifier.uri http://hdl.handle.net/1912/1599
dc.description This paper is not subject to U.S. copyright. The definitive version was published in Geophysical Research Letters 33 (2006): L11403, doi:10.1029/2006GL026300. en
dc.description.abstract Relative contributions of geologic and anthropogenic processes to subsidence of southern Louisiana are vigorously debated. Of these, shallow sediment compaction is often considered dominant, although this has never been directly observed or effectively demonstrated. Quantitative understanding of subsidence is important for predicting relative sea level rise, storm surge flooding due to hurricanes, and for successful wetland restoration. Despite many shallow borings, few appropriate stratigraphic and geotechnical data are available for site-specific calculations. We overcome this by determining present compaction rates from Monte Carlo simulations of the incremental sedimentation and compaction of stratigraphies typical of the Holocene of southern Louisiana. This approach generates distributions of present compaction rates that are not expected to exceed 5 mm/yr, but may locally. Locations with present subsidence rates greater than the predicted maximum probable shallow compaction rates are likely influenced by additional processes. en
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher American Geophysical Union en
dc.relation.uri http://dx.doi.org/10.1029/2006GL026300
dc.title Current subsidence rates due to compaction of Holocene sediments in southern Louisiana en
dc.type Article en
dc.identifier.doi 10.1029/2006GL026300

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