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Collection, analysis, and age-dating of sediment cores from salt marshes on the south shore of Cape Cod, Massachusetts, from 2013 through 2014

Dates

Publication Date

Citation

Gonneea, M.E., O'Keefe Suttles, J.A., and Kroeger, K.D., 2018, Collection, analysis, and age-dating of sediment cores from salt marshes on the south shore of Cape Cod, Massachusetts, from 2013 through 2014: U.S. Geological Survey data release, https://doi.org/10.5066/F7H41QPP.

Summary

The accretion history of fringing salt marshes located on the south shore of Cape Cod is reconstructed from sediment cores collected in low and high marsh vegetation zones. These marshes are micro-tidal, with a mean tidal range of 0.442 m. Their location within protected embayments and the absence of large rivers results in minimal sediment supply and a dominance of organic matter contributions to sediment peat. Age models based on 210-lead and 137-cesium are constructed to evaluate how vertical accretion and carbon burial rates have changed over the past century. The continuous rate of supply age model was used to age date 11 cores (10 low marsh and 1 high marsh) across four salt marshes. Both vertical accretion rates and carbon burial [...]

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Attached Files

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Saltmarsh_AR.jpg
“Browse graphic of the data.”
thumbnail 68.34 KB
Waquoit_Core_data_release.xlsx
“Data in XLSX format.”
162.19 KB
Waquoit_Core_data_release.csv
“Data in CSV format.”
116.13 KB
Waquoit_Core_data_release_meta.xml
“CSDGM metadata.”
Original FGDC Metadata

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35.17 KB

Purpose

These cores were collected, age dated, and their elevation measured to determine what elevation trajectories salt marsh surfaces have followed over the past century as sea level has risen at a rate of 2.8 mm/yr. In addition, carbon burial was evaluated to determine what rates were over the past century.

Additional Information

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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F7H41QPP

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