Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation

Accurately understanding the timing of past deglaciations is important for studying ice sheet response to climate change. Different methods to reconstruct the Laurentide deglaciation disagree due to different methodological assumption. 10Be exposure ages from the terminal moraine of the ice imply re...

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Main Author: Drebber, Jason S
Format: Text
Language:unknown
Published: UVM ScholarWorks 2024
Subjects:
Ice Sheet
Online Access:https://scholarworks.uvm.edu/src/2022/completepresentationlist/46
id ftunivermont:oai:scholarworks.uvm.edu:src-2012
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spelling ftunivermont:oai:scholarworks.uvm.edu:src-2012 2024-06-23T07:53:46+00:00 Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation Drebber, Jason S 2024-05-29T00:13:03Z https://scholarworks.uvm.edu/src/2022/completepresentationlist/46 unknown UVM ScholarWorks https://scholarworks.uvm.edu/src/2022/completepresentationlist/46 UVM Student Research Conference text 2024 ftunivermont 2024-06-04T14:13:50Z Accurately understanding the timing of past deglaciations is important for studying ice sheet response to climate change. Different methods to reconstruct the Laurentide deglaciation disagree due to different methodological assumption. 10Be exposure ages from the terminal moraine of the ice imply retreat occurred between 28 and 25 ka, while organic 14C ages suggest retreat occurred around 16 ka. The ages converge 200 kilometers north, however no 10Be samples have been measured between southern Connecticut and northern Massachusetts. We collected 14 samples from this region to fill the data gap and attempt to geographically constrain where the two reconstruction methods converge. Text Ice Sheet The University of Vermont: ScholarWorks @ UVM
institution Open Polar
collection The University of Vermont: ScholarWorks @ UVM
op_collection_id ftunivermont
language unknown
description Accurately understanding the timing of past deglaciations is important for studying ice sheet response to climate change. Different methods to reconstruct the Laurentide deglaciation disagree due to different methodological assumption. 10Be exposure ages from the terminal moraine of the ice imply retreat occurred between 28 and 25 ka, while organic 14C ages suggest retreat occurred around 16 ka. The ages converge 200 kilometers north, however no 10Be samples have been measured between southern Connecticut and northern Massachusetts. We collected 14 samples from this region to fill the data gap and attempt to geographically constrain where the two reconstruction methods converge.
format Text
author Drebber, Jason S
spellingShingle Drebber, Jason S
Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation
author_facet Drebber, Jason S
author_sort Drebber, Jason S
title Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation
title_short Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation
title_full Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation
title_fullStr Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation
title_full_unstemmed Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation
title_sort investigating 10be/14c chronometer age divergence in southern new england to assess the timing of laurentide ice sheet deglaciation
publisher UVM ScholarWorks
publishDate 2024
url https://scholarworks.uvm.edu/src/2022/completepresentationlist/46
genre Ice Sheet
genre_facet Ice Sheet
op_source UVM Student Research Conference
op_relation https://scholarworks.uvm.edu/src/2022/completepresentationlist/46
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