English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 Local TagsRelease HistoryDetailsSummary
  Arctic Ocean 50 ka foram-bound nitrogen isotope data, core age models, and Bering Strait sea level simulations [Dataset]

Farmer, J. R., Pico, T., Underwood, O. M., Cleveland-Stout, R., Sigman, D. M., Granger, J., et al. (2023). Arctic Ocean 50 ka foram-bound nitrogen isotope data, core age models, and Bering Strait sea level simulations [Dataset]. doi:10.1594/PANGAEA.954603.

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://hdl.handle.net/21.11116/0000-000D-4C16-6 Version Permalink: https://hdl.handle.net/21.11116/0000-000D-4D52-1
Genre: Other

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Farmer, Jesse R.1, Author           
Pico, Tamara, Author
Underwood, Ona M., Author
Cleveland-Stout, Rebecca, Author
Sigman, Daniel M., Author
Granger, Julie, Author
Fripiat, Francois1, Author           
Cronin, Thomas M., Author
Martinez-Garcia, Alfredo1, Author           
Haug, Gerald H.1, Author           
Affiliations:
1Climate Geochemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_2237635              

Content

show
hide
Free keywords: -
 Abstract: The cyclic growth and decay of continental ice sheets can be reconstructed from the history of global sea level. Sea level is relatively well-constrained for the Last Glacial Maximum (LGM, 26,500-19,000 years ago, 26.5-19 ka) and the ensuing deglaciation. However, sea-level estimates for the period of ice-sheet growth before the LGM vary by > 60 m, an uncertainty comparable to the sea-level equivalent of the contemporary Antarctic Ice Sheet. Here we constrain sea level prior to the LGM by reconstructing the flooding history of the shallow Bering Strait since 46 ka. Our data constraint on Bering Strait flooding are nitrogen isotope measurements in organic matter bound in the planktonic foraminifer Neogloboquadrina pachyderma from four sediment cores in the Arctic Ocean, dating back to ~50,000 years before present. These data extend the previous measurements of Farmer et al., 2021 (https://doi.org/10.1038/s41561-021-00789-y). We additionally provide new Bayesian age-depth models for each sediment core based on existing radiocarbon (14C) measurements on N. pachyderma. The nitrogen isotope data are compared with a suite of reconstructions of global mean sea-level and relative sea level at the Bering Strait from glacial isostatic adjustment modeling covering the last 120,000 years.

Details

show
hide
Language(s): eng - English
 Dates: 2023
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: Related to:
Farmer, Jesse R; Pico, Tamara; Underwood, Ona M; Cleveland-Stout, Rebecca; Granger, Julie; Cronin, Thomas M; Fripiat, François; Martínez-García, Alfredo; Haug, Gerald H; Sigman, Daniel M (2023): The Bering Strait was flooded 10,000 years before the Last Glacial Maximum. Proceedings of the National Academy of Sciences, 120(1), e2206742119, https://doi.org/10.1073/pnas.2206742119
Farmer, Jesse R; Sigman, Daniel M; Granger, Julie; Underwood, Ona M; Fripiat, François; Cronin, Thomas M; Martínez-García, Alfredo; Haug, Gerald H (2021): Arctic Ocean stratification set by sea level and freshwater inputs since the last ice age. Nature Geoscience, 14(9), 684-689, https://doi.org/10.1038/s41561-021-00789-y
 Rev. Type: -
 Identifiers: DOI: 10.1594/PANGAEA.954603
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Pangaea
Source Genre: Web Page
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -