Sökning: id:"swepub:oai:DiVA.org:su-132922" >
Final deglaciation ...
Final deglaciation of the Scandinavian Ice Sheet and implications for the Holocene global sea-level budget
-
Cuzzone, Joshua K. (författare)
-
Clark, Peter U. (författare)
-
Carlson, Anders E. (författare)
-
visa fler...
-
Ullman, David J. (författare)
-
Rinterknecht, Vincent R. (författare)
-
Milne, Glenn A. (författare)
-
Lunkka, Juha-Pekka (författare)
-
- Wohlfarth, Barbara (författare)
- Stockholms universitet,Institutionen för geologiska vetenskaper
-
Marcott, Shaun A. (författare)
-
Caffee, Marc (författare)
-
visa färre...
-
(creator_code:org_t)
- Elsevier BV, 2016
- 2016
- Engelska.
-
Ingår i: Earth and Planetary Science Letters. - : Elsevier BV. - 0012-821X .- 1385-013X. ; 448, s. 34-41
- Relaterad länk:
-
http://manuscript.el...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The last deglaciation of the Scandinavian Ice Sheet (SIS) from similar to 21,000 to 13,000 yr ago is well constrained by several hundred Be-10 and C-14 ages. The subsequent retreat history, however, is established primarily from minimum-limiting C-14 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 Be-10 cosmogenic exposure dates sampled along three transects spanning southern to northern Sweden and Finland. Combining this new chronology with existing Be-10 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 similar to 14.5 ka and 10 ka. Final deglaciation was largely complete by similar to 10.5 ka, with highest rates of sea-level rise occurring during the Bolling-Allerod, 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.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- sea level
- ice sheets
- Holocene
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Cuzzone, Joshua ...
-
Clark, Peter U.
-
Carlson, Anders ...
-
Ullman, David J.
-
Rinterknecht, Vi ...
-
Milne, Glenn A.
-
visa fler...
-
Lunkka, Juha-Pek ...
-
Wohlfarth, Barba ...
-
Marcott, Shaun A ...
-
Caffee, Marc
-
visa färre...
- Om ämnet
-
- NATURVETENSKAP
-
NATURVETENSKAP
-
och Geovetenskap och ...
- Artiklar i publikationen
-
Earth and Planet ...
- Av lärosätet
-
Stockholms universitet