Literature DB >> 21798947

Sr-Nd-Pb isotope evidence for ice-sheet presence on southern Greenland during the Last Interglacial.

Elizabeth J Colville1, Anders E Carlson, Brian L Beard, Robert G Hatfield, Joseph S Stoner, Alberto V Reyes, David J Ullman.   

Abstract

To ascertain the response of the southern Greenland Ice Sheet (GIS) to a boreal summer climate warmer than at present, we explored whether southern Greenland was deglaciated during the Last Interglacial (LIG), using the Sr-Nd-Pb isotope ratios of silt-sized sediment discharged from southern Greenland. Our isotope data indicate that no single southern Greenland geologic terrane was completely deglaciated during the LIG, similar to the Holocene. Differences in sediment sources during the LIG relative to the early Holocene denote, however, greater southern GIS retreat during the LIG. These results allow the evaluation of a suite of GIS models and are consistent with a GIS contribution of 1.6 to 2.2 meters to the ≥4-meter LIG sea-level highstand, requiring a significant sea-level contribution from the Antarctic Ice Sheet.

Entities:  

Year:  2011        PMID： 21798947     DOI： 10.1126/science.1204673

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  6 in total

1.  A multimillion-year-old record of Greenland vegetation and glacial history preserved in sediment beneath 1.4 km of ice at Camp Century.

Authors:  Andrew J Christ; Paul R Bierman; Joerg M Schaefer; Dorthe Dahl-Jensen; Jørgen P Steffensen; Lee B Corbett; Dorothy M Peteet; Elizabeth K Thomas; Eric J Steig; Tammy M Rittenour; Jean-Louis Tison; Pierre-Henri Blard; Nicolas Perdrial; David P Dethier; Andrea Lini; Alan J Hidy; Marc W Caffee; John Southon
Journal:  Proc Natl Acad Sci U S A       Date:  2021-03-30       Impact factor: 11.205

2.  Pronounced summer warming in northwest Greenland during the Holocene and Last Interglacial.

Authors:  Jamie M McFarlin; Yarrow Axford; Magdalena R Osburn; Meredith A Kelly; Erich C Osterberg; Lauren B Farnsworth
Journal:  Proc Natl Acad Sci U S A       Date:  2018-06-04       Impact factor: 11.205

3.  Probabilistic framework for assessing the ice sheet contribution to sea level change.

Authors:  Christopher M Little; Nathan M Urban; Michael Oppenheimer
Journal:  Proc Natl Acad Sci U S A       Date:  2013-02-12       Impact factor: 11.205

4.  South Greenland ice-sheet collapse during Marine Isotope Stage 11.

Authors:  Alberto V Reyes; Anders E Carlson; Brian L Beard; Robert G Hatfield; Joseph S Stoner; Kelsey Winsor; Bethany Welke; David J Ullman
Journal:  Nature       Date:  2014-06-26       Impact factor: 49.962

5.  Enhanced climate instability in the North Atlantic and southern Europe during the Last Interglacial.

Authors:  P C Tzedakis; R N Drysdale; V Margari; L C Skinner; L Menviel; R H Rhodes; A S Taschetto; D A Hodell; S J Crowhurst; J C Hellstrom; A E Fallick; J O Grimalt; J F McManus; B Martrat; Z Mokeddem; F Parrenin; E Regattieri; K Roe; G Zanchetta
Journal:  Nat Commun       Date:  2018-10-12       Impact factor: 14.919

6.  A low climate threshold for south Greenland Ice Sheet demise during the Late Pleistocene.

Authors:  Nil Irvalı; Eirik V Galaasen; Ulysses S Ninnemann; Yair Rosenthal; Andreas Born; Helga Kikki F Kleiven
Journal:  Proc Natl Acad Sci U S A       Date:  2019-12-23       Impact factor: 11.205
  6 in total

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