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...
Categories: Data;
Tags: 137-cesium,
210-lead,
Barnstable County,
Cape Cod,
Commonwealth of Massachusetts, All tags...
Eel Pond,
Environmental Health,
Falmouth,
Geochemistry,
Great Pond,
Hamblin Pond,
Sage Lot Pond,
Soil Sciences,
United States of America,
Waquoit Bay,
Water Quality,
Water Resources,
accretion rate,
carbon,
carbon burial,
carbon isotope analysis,
elevation,
geoscientificInformation,
high marsh,
location,
low marsh,
nitrogen,
oceans,
piston coring,
radiometric dating,
salt marsh elevation,
sea-level change,
sedimentation,
soil chemistry, Fewer tags
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