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Data Series 877

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Wetland Paleoecological Study of Southwest Coastal Louisiana: Sediment Cores and Diatom Calibration Dataset

By Kathryn E.L. Smith,1 James G. Flocks,1 Gregory D. Steyer,2 and Sarai C. Piazza2

1St. Petersburg Coastal and Marine Science Center, U.S. Geological Survey, St. Petersburg, Fla.
2National Wetlands Research Center, U.S. Geological Survey, Lafayette, La.

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Wetland sediment data were collected in 2009 and 2010 throughout the southwest Louisiana Chenier Plain as part of a pilot study to develop a diatom-based proxy for past wetland water chemistry and the identification of sediment deposits from tropical storms. The complete dataset includes forty-six surface sediment samples and nine sediment cores. The surface sediment samples were collected in fresh, intermediate, and brackish marsh and are located coincident with Coastwide Reference Monitoring System (CRMS) sites. The nine sediment cores were collected at the Rockefeller Wildlife Refuge (RWR) located in Grand Chenier, La.

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