Holocene sea-level variability from Chesapeake Bay Tidal Marshes, USA

Holocene sea-level variability from Chesapeake Bay Tidal Marshes, USA

We reconstructed the last 10,000 years of Holocene relative sea-level rise (RSLR) from sediment core records near Chesapeake Bay, eastern United States, including new marsh records from the Potomac and Rappahannock Rivers, Virginia. Results show mean RSLR rates of 2.6 mm yr−1 from 10 to 8 kilo-annum...

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Veröffentlicht in:Holocene (Sevenoaks) 2019-11, Vol.29 (11), p.1679-1693
Hauptverfasser: Cronin, Thomas M, Clevenger, Megan K, Tibert, Neil E, Prescott, Tammy, Toomey, Michael, Hubeny, J Bradford, Abbott, Mark B, Seidenstein, Julia, Whitworth, Hannah, Fisher, Sam, Wondolowski, Nick, Ruefer, Anna
Format: Artikel
Sprache:eng
Schlagworte:
Climate
Deglaciation
Geophysics
Glaciation
Glaciers
Holocene
Ice ages
Ice sheets
Marshes
Mean sea level
Meltwater
Records
Rivers
Sea level
Sea level rise
Subsidence
Thermal expansion
Tidal marshes
Tides
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Zusammenfassung:We reconstructed the last 10,000 years of Holocene relative sea-level rise (RSLR) from sediment core records near Chesapeake Bay, eastern United States, including new marsh records from the Potomac and Rappahannock Rivers, Virginia. Results show mean RSLR rates of 2.6 mm yr−1 from 10 to 8 kilo-annum (ka) due to combined final ice-sheet melting during deglaciation and glacio-isostatic adjustment (GIA subsidence). Mean RSLR rates from ~6 ka to present were 1.4 mm yr−1 due mainly to GIA, consistent with other East Coast marsh records and geophysical models. However, a progressively slower mean rate (
ISSN:0959-6836
1477-0911
DOI:10.1177/0959683619862028