Journal
ESTUARINE COASTAL AND SHELF SCIENCE
Volume 164, Issue -, Pages 506-519Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ecss.2015.08.012
Keywords
Glacial-isostatic adjustment; Salt marsh; Tidal range; Peat; New jersey; The US Atlantic coast
Categories
Funding
- EPA [96284800]
- NICRR [DE-FC02-06ER64298]
- National Science Foundation [EAR 1052848, 1402017, OCE 1458904, 1458903, ARC 1203415]
- NOAA [NA11OAR4310101, NA10OAR4170075]
- New Jersey Sea Grant Consortium [6410-0012]
- USDA National Institute of Food and Agriculture
- Hatch
- Rhode Island Agricultural Experiment Station [5432]
- Directorate For Geosciences
- Division Of Earth Sciences [1402017] Funding Source: National Science Foundation
- Directorate For Geosciences
- Office of Polar Programs (OPP) [1203415] Funding Source: National Science Foundation
- Division Of Ocean Sciences
- Directorate For Geosciences [1458903] Funding Source: National Science Foundation
- Division Of Ocean Sciences
- Directorate For Geosciences [1458904] Funding Source: National Science Foundation
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We produced eight new sea-level index points that reconstruct a similar to 2.5 m relative sea-level (RSL) rise at Sea Breeze in the Delaware Bay from similar to 200 BCE to 1800 CE. The precision of our reconstruction improved upon existing data by using high-resolution surveying methods AMS radiocarbon dating of in-situ plant macrofossils collected immediately above the basal contact between pre-Holocene sand and salt-marsh sediments foraminifera as sea-level indicators and by accounting for tidal range changes through time. Our new data were combined with a database of 65 sea-level index points available for the Delaware Bay to estimate the rate of RSL rise in the upper (1.26 +/- 0.33 mm/yr) and lower bay (130 +/- 0.36 mm/yr) using a spatial-temporal model. Correction for changes in tidal range through time removed the disparity in rate between the upper and lower Delaware Bay that had previously been postulated. After paleotidal correction the rates of RSL rise estimated for the Delaware Bay (1.25 +/- 0.27 mm/yr) correlate with the similar to 13 mm/yr rate reported for New Jersey Maryland and Virginia and confirm that the maximal ongoing forebulge collapse along the U.S. Atlantic coast is focused on the mid-Atlantic. (C) 2015 Elsevier Ltd. All rights reserved.
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