Final deglaciation of the Scandinavian Ice Sheet and implications for the Holocene global sea-level budget Public Deposited

http://ir.library.oregonstate.edu/concern/articles/3t945s73c

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Elsevier and can be found at:  http://www.journals.elsevier.com/earth-and-planetary-science-letters

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • The last deglaciation of the Scandinavian Ice Sheet (SIS) from ∼21,000 to 13,000 yr ago is well-constrained by several hundred ¹⁰Be and ¹⁴C ages. The subsequent retreat history, however, is established primarily from minimum-limiting ¹⁴C ages and incomplete Baltic-Sea varve records, leaving a substantial fraction of final SIS retreat history poorly constrained. Here we develop a high-resolution chronology for the final deglaciation of the SIS based on 79 ¹⁰Be cosmogenic exposure dates sampled along three transects spanning southern to northern Sweden and Finland. Combining this new chronology with existing ¹⁰Be ages on deglaciation since the Last Glacial Maximum shows that rates of SIS margin retreat were strongly influenced by deglacial millennial-scale climate variability and its effect on surface mass balance, with regional modulation of retreat associated with dynamical controls. Ice-volume estimates constrained by our new chronology suggest that the SIS contributed ∼8 m sea-level equivalent to global sea-level rise between ∼14.5 ka and 10 ka. Final deglaciation was largely complete by ∼10.5 ka, with highest rates of sea-level rise occurring during the Bølling–Allerød, a 50% decrease during the Younger Dryas, and a rapid increase during the early Holocene. Combining our SIS volume estimates with estimated contributions from other remaining Northern Hemisphere ice sheets suggests that the Antarctic Ice Sheet (AIS) contributed 14.4±5.9 m to global sea-level rise since ∼13 ka. This new constraint supports those studies that indicate that an ice volume of 15 m or more of equivalent sea-level rise was lost from the AIS during the last deglaciation.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Cuzzone, J. K., Clark, P. U., Carlson, A. E., Ullman, D. J., Rinterknecht, V. R., Milne, G. A., ... & Caffee, M. (2016). Final deglaciation of the Scandinavian Ice Sheet and implications for the Holocene global sea-level budget. Earth and Planetary Science Letters, 448, 34-41. doi:10.1016/j.epsl.2016.05.019
Series
Keyword
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2016-08-02T20:57:31Z (GMT). No. of bitstreams: 4 krauserp673304182.zip: 2014565 bytes, checksum: 2440f91d2047036bd44c53c5decc3e55 (MD5) CuzzoneFinalDeglaciationoftheScandinavian.pdf: 1562729 bytes, checksum: 8ca7bcb0682f043f2a9022e0dc600aee (MD5) CuzzoneFinalDeglaciationoftheScandinavianSupplementaryInfo.pdf: 463586 bytes, checksum: d6b49394c932e921831e115aa64af6c3 (MD5) CuzzoneFinalDeglaciationoftheScandinavianSupplementaryTables.xlsx: 165403 bytes, checksum: 207de0cac0042b3ecbe49c1cd3a3fa71 (MD5) Previous issue date: 2016-08-15
  • description.provenance : Submitted by Open Access (openaccess@library.oregonstate.edu) on 2016-07-25T17:56:31Z No. of bitstreams: 3 CuzzoneFinalDeglaciationoftheScandinavian.pdf: 1562729 bytes, checksum: 8ca7bcb0682f043f2a9022e0dc600aee (MD5) CuzzoneFinalDeglaciationoftheScandinavianSupplementaryInfo.pdf: 463586 bytes, checksum: d6b49394c932e921831e115aa64af6c3 (MD5) CuzzoneFinalDeglaciationoftheScandinavianSupplementaryTables.xlsx: 165403 bytes, checksum: 207de0cac0042b3ecbe49c1cd3a3fa71 (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2016-08-02T20:57:31Z (GMT) No. of bitstreams: 4 krauserp673304182.zip: 2014565 bytes, checksum: 2440f91d2047036bd44c53c5decc3e55 (MD5) CuzzoneFinalDeglaciationoftheScandinavian.pdf: 1562729 bytes, checksum: 8ca7bcb0682f043f2a9022e0dc600aee (MD5) CuzzoneFinalDeglaciationoftheScandinavianSupplementaryInfo.pdf: 463586 bytes, checksum: d6b49394c932e921831e115aa64af6c3 (MD5) CuzzoneFinalDeglaciationoftheScandinavianSupplementaryTables.xlsx: 165403 bytes, checksum: 207de0cac0042b3ecbe49c1cd3a3fa71 (MD5)

Relationships

In Administrative Set:
Last modified: 07/25/2016 Default
Citations:

EndNote | Zotero | Mendeley