Year: 2025
Type: article
Abstract: We report a new relative sea level curve from Inglefield Land, northwest Greenland, to investigate the transition from maximum to minimum loading across Nares Strait. We sampled marine bivalves and terrestrial macrofossils for radiocarbon dating from raised marine terraces in Rensselaer Valley, Inglefield Land (78.58°N, 70.71°W) to constrain relative sea level through the Holocene. The oldest terrestrial macrofossil of 9010–8650 cal yr BP provides a minimum-limiting constraint for the deglaciation. Sea level fell rapidly from the marine limit at 85 ± 4 m to 37.5 ± 4 m above sea level (m asl) between 9010–8650 and 7970–7790 cal yr BP at a rate of 49 m/ka. The rate of sea -level fall decreased to 11 m/ka between 7970–7790 and 5320–5060 cal yr BP, when it fell from 37.5 ± 4 to 9 ± 4 m asl. After 5,320–5,060 cal yr BP, we estimate sea level fell at a lower rate of 2 m/ka to modern sea level. The period of fastest emergence in Inglefield Land is earlier in time than in Hall Land, reflecting earlier deglaciation, and is steeper than in Hall Land and Washington Land. This sea-level history captures the transition from the style of emergence from Pituffik to Hall Land.
Source: Quaternary Research
Authors: Karlee K. Prince, Jason P. Briner
Institution: University at Buffalo, State University of New York
Language: English
Subfield: Atmospheric Science
Field: Earth and Planetary Sciences
Domain: Physical Sciences
SDG: Climate action
Open Access status: hybrid
Estimated APC paid: $3,550
Awards: Collaborative Research: GRate – Integrating data and modeling to quantify rates of Greenland Ice Sheet change, Holocene to future, The Polar Geospatial Center: Community and Facility Support, G3181354122, G3507382215, G4298956161, Automated, High Resolution Terrain Generation for XSEDE, Petascale Polar Topography Production, G8264246533, The Polar Geospatial Information Center: Joint Support, The Polar Geospatial Center: Community and Facility Support
OpenAlex ID: W4416837171